{"title":"HUUM Sauna Heaters","description":"\u003cstyle\u003e\n.hum{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1A1410;line-height:1.7;}\n.hum *{box-sizing:border-box;}\n.hum-wrap{max-width:1040px;margin:0 auto;padding:0 20px;}\n.hum-sec{padding:56px 0;}\n.hum-sec.w{background:#FAF7F2;}\n.hum-sec.d{background:#1A1410;color:#F5EFE2;}\n.hum-eyebrow{font-size:13px;letter-spacing:.10em;text-transform:uppercase;color:#8F6524;font-weight:700;margin:0 0 10px;}\n.hum-sec.d .hum-eyebrow{color:#E8A359;}\n.hum-h2{font-size:clamp(22px,2.8vw,28px);line-height:1.25;font-weight:700;margin:0 0 14px;color:#1A1410;padding-bottom:12px;position:relative;display:inline-block;}\n.hum-h2::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:3px;background:#E8A359;border-radius:2px;}\n.hum-sec.d .hum-h2{color:#F5EFE2;}\n.hum-sec.d h2,.hum-sec.d h3{color:#F5EFE2;}\n.hum-p{font-size:16px;color:#4A4038;margin:0 0 16px;max-width:780px;}\n.hum 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30px;max-width:820px;}\n.hum-warn{background:#FFF8ED;border:1px solid #E8CFA4;border-radius:10px;padding:20px 24px;max-width:820px;font-size:14px;color:#5C4A2E;}\n.hum-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}\n@media(max-width:900px){.hum-tiles{grid-template-columns:repeat(2,1fr);}}\n@media(max-width:640px){.hum-tiles{grid-template-columns:1fr;}}\n.hum-tile{background:#fff;border:1px solid #E5DDD0;border-radius:10px;padding:20px;}\n.hum-tile h4{font-size:14px;font-weight:700;margin:0 0 6px;color:#1A1410;}\n.hum-tile p{font-size:13px;color:#5C5148;margin:0;}\n.hum-tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}\n.hum-swipe{display:none;}\n@media(max-width:768px){\n.hum-tblwrap table{min-width:640px;}\n.hum-tblwrap td,.hum-tblwrap th{white-space:nowrap;}\n.hum-swipe{display:block;font-size:12px;color:#75654F;margin:0 0 8px;}\n}\n.hum-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}\n@media(max-width:768px){.hum-nav{grid-template-columns:repeat(2,1fr);}}\n.hum-nav a{display:block;background:#fff;border:1px solid #E5DDD0;border-radius:10px;padding:18px;text-decoration:none!important;color:#1A1410!important;font-weight:600;font-size:14px;}\n.hum-nav a:hover{border-color:#E8A359;}\n.hum-nav span{display:block;font-size:12px;color:#6B5D4F;font-weight:400;margin-top:4px;}\n.hum-faq details{border-bottom:1px solid #EDE6DA;padding:18px 0;max-width:900px;}\n.hum-faq summary{color:#1A1410;display:flex;justify-content:space-between;gap:16px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;}\n.hum-faq summary::-webkit-details-marker{display:none;}\n.hum-faq summary::after{content:'+';flex:0 0 auto;font-size:20px;color:#8F6524;font-weight:700;}\n.hum-faq details[open] summary::after{content:'\\2212';}\n.hum-faq p{font-size:15px;color:#5C5148;margin:12px 0 0;max-width:860px;}\n.hum-cta{padding:60px 20px;background:#1A1410;text-align:center;}\n.hum-cta h2{color:#F5EFE2!important;font-size:26px;margin:0 0 12px;}\n.hum-cta p{color:#CDBFA9;margin:0 auto 32px;max-width:620px;font-size:16px;}\n.hum-btns{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;}\n.hum-btn{display:inline-block;background:#fff;color:#1A1410!important;padding:15px 28px;border-radius:8px;font-weight:700;font-size:15px;text-decoration:none!important;}\n.hum-btn.alt{background:transparent;color:#F5EFE2!important;border:1px solid #4A3F36;}\n.hum-sec \u003e .hum-wrap \u003e *:first-child{margin-top:0;}\n.hum-sec \u003e .hum-wrap \u003e *:last-child{margin-bottom:0;}\n@media(max-width:768px){\n.hum-sec{padding:40px 0;}\n.hum-wrap{padding:0 16px;}\n.hum-h2{font-size:22px;margin:0 0 12px;padding-bottom:10px;}\n.hum-p{font-size:15px;}\n.hum-eyebrow,.hum-sec-eyebrow{font-size:12px;}\n.hum-fig img{max-height:260px;}\n.hum-hero{gap:20px;}\n.hum-cta{padding:44px 16px;}\n.hum-cta h2{font-size:22px;}\n}\n\u003c\/style\u003e\n\u003cp style=\"font-size:16px;line-height:1.8;color:#4A4038;margin:0;\"\u003eHUUM builds its sauna heaters in Estonia around one idea: put the stone in the open, in contact with the elements, instead of hiding it behind a steel skin. That is what gives these rooms their soft, wet heat, and it is why the DROP won a Red Dot design award. Five electric families from 4 to 18 kW, one UKU control that runs all of them from the wall or your phone, and olivine diabase stone by the box.\u003c\/p\u003e\n[split]\n\n\u003cdiv class=\"hum\"\u003e\n\u003cdiv class=\"hum-sec d\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cdiv class=\"hum-hero\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hum-eyebrow\"\u003eThe HUUM story\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eHUUM Sauna Heaters: Estonian Design, Built Around the Stone\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eHUUM is an Estonian manufacturer founded by Siim Nellis, a third generation sauna stove producer who set out to combine a sauna heater with modern design and modern control. The company works out of Tartu, in southern Estonia.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eThe DROP is the heater that made the name. It was developed in 2011 with the Estonian Academy of Arts, reached production in 2012, and won the Red Dot product design award in 2015. Its shape is not styling for its own sake: rounding the cage and cutting the metal surface lets the heater hold more stone for its size, which is where a sauna gets its soft heat and its steam.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eEvery HUUM electric heater follows the same idea. The stone sits in the open, in direct contact with the elements, rather than hidden behind a steel skin. You see the stone, you throw water onto the stone, and the room settles instead of swinging. The other half of the brand is the UKU control, which runs the heater from outside the room or from your phone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-hero-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-sauna-heater-lifestyle.jpg?v=1789893530\u0026amp;width=760\u0026amp;height=680\u0026amp;crop=top\" alt=\"A HUUM DROP sauna heater on the wall of a sauna while water is ladled onto its stones\" width=\"380\" height=\"340\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-stats\"\u003e\n\u003cdiv class=\"hum-stat\"\u003e\n\u003cspan class=\"hum-stat-n\"\u003eEstonia\u003c\/span\u003e\u003cspan class=\"hum-stat-l\"\u003eDesigned and Built\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-stat\"\u003e\n\u003cspan class=\"hum-stat-n\"\u003e4 to 18kW\u003c\/span\u003e\u003cspan class=\"hum-stat-l\"\u003eOutput Range Stocked\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-stat\"\u003e\n\u003cspan class=\"hum-stat-n\"\u003e106 to 989\u003c\/span\u003e\u003cspan class=\"hum-stat-l\"\u003eCubic Feet Covered\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-stat\"\u003e\n\u003cspan class=\"hum-stat-n\"\u003e3 Years\u003c\/span\u003e\u003cspan class=\"hum-stat-l\"\u003ePrivate Use Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eThe range\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eThe HUUM Lineup: Five Electric Heater Families\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eEvery HUUM electric heater takes a separate control and its own quantity of stone. What separates the families is where the heater sits, how much stone it carries, and how it looks doing it.\u003c\/p\u003e\n\u003cdiv class=\"hum-grid3\"\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eDROP\u003c\/h3\u003e\n\u003cp\u003eThe Red Dot winner, and the only HUUM heater light enough to ship by parcel. It hangs on the wall as an open cradle, in four sizes from 4.5 to 9 kW, all carrying the same 121.3 lb of stone. For rooms from 106 to 460 cubic feet. See the \u003ca href=\"\/products\/huum-drop-4-electric-sauna-heater\"\u003eDROP 4\u003c\/a\u003e, \u003ca href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003eDROP 6\u003c\/a\u003e, \u003ca href=\"\/products\/huum-drop-7-electric-sauna-heater\"\u003eDROP 7\u003c\/a\u003e and \u003ca href=\"\/products\/huum-drop-9-electric-sauna-heater\"\u003eDROP 9\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eCLIFF and CLIFF Mini\u003c\/h3\u003e\n\u003cp\u003eThe slimmest heater HUUM makes: a 10.6 inch square column with removable ribs, so the stone packs tightly against the elements. CLIFF 6, 9 and 11 stand on the floor and hold 165 lb of stone. CLIFF Mini 4 is 6.3 inches deep and hangs on a wall bracket, for a room too small for anything else. See the \u003ca href=\"\/products\/huum-cliff-mini-4-electric-sauna-heater\"\u003eCLIFF Mini 4\u003c\/a\u003e, \u003ca href=\"\/products\/huum-cliff-6-electric-sauna-heater\"\u003eCLIFF 6\u003c\/a\u003e, \u003ca href=\"\/products\/huum-cliff-9-electric-sauna-heater\"\u003eCLIFF 9\u003c\/a\u003e and \u003ca href=\"\/products\/huum-cliff-11-electric-sauna-heater\"\u003eCLIFF 11\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eSTEEL and STEEL Mini\u003c\/h3\u003e\n\u003cp\u003eA 12.6 inch square body, a little wider than the CLIFF, carrying twice the stone: 330 lb on STEEL 6, 9 and 11. STEEL Mini 4 hangs on a wall bracket like the CLIFF Mini. For rooms from 106 to 566 cubic feet. See the \u003ca href=\"\/products\/huum-steel-mini-4-electric-sauna-heater\"\u003eSTEEL Mini 4\u003c\/a\u003e, \u003ca href=\"\/products\/huum-steel-6-electric-sauna-heater\"\u003eSTEEL 6\u003c\/a\u003e, \u003ca href=\"\/products\/huum-steel-9-electric-sauna-heater\"\u003eSTEEL 9\u003c\/a\u003e and \u003ca href=\"\/products\/huum-steel-11-electric-sauna-heater\"\u003eSTEEL 11\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eHIVE and HIVE Mini\u003c\/h3\u003e\n\u003cp\u003eThe round basket, and the heaviest stone load HUUM makes: 330 lb on the Mini and 528 lb on the full size. HIVE 12, 15 and 18 are the models for a large or commercial room, and they run through the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e. See the \u003ca href=\"\/products\/huum-hive-mini-6-electric-sauna-heater\"\u003eHIVE Mini 6\u003c\/a\u003e, \u003ca href=\"\/products\/huum-hive-mini-9-electric-sauna-heater\"\u003eMini 9\u003c\/a\u003e, \u003ca href=\"\/products\/huum-hive-mini-11-electric-sauna-heater\"\u003eMini 11\u003c\/a\u003e, \u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eHIVE 12\u003c\/a\u003e, \u003ca href=\"\/products\/huum-hive-15-electric-sauna-heater\"\u003eHIVE 15\u003c\/a\u003e and \u003ca href=\"\/products\/huum-hive-18-electric-sauna-heater\"\u003eHIVE 18\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eCORE\u003c\/h3\u003e\n\u003cp\u003eA square heater designed to be finished in the same timber as your room, or left black. Alder, aspen and thermo-aspen panels, with a black or stainless trim ring, in 6.5, 9 and 10.5 kW: the \u003ca href=\"\/products\/huum-core-6-electric-sauna-heater\"\u003eCORE 6\u003c\/a\u003e, \u003ca href=\"\/products\/huum-core-9-electric-sauna-heater\"\u003eCORE 9\u003c\/a\u003e and \u003ca href=\"\/products\/huum-core-11-electric-sauna-heater\"\u003eCORE 11\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eWood stoves\u003c\/h3\u003e\n\u003cp\u003eHUUM builds two wood burning ranges for a sauna with no electrical supply, or an owner who wants the fire. The \u003ca href=\"\/products\/huum-hive-wood-13\"\u003eHIVE Wood\u003c\/a\u003e holds its stone in a cage around the firebox; the \u003ca href=\"\/products\/huum-hive-flow\"\u003eHIVE Flow\u003c\/a\u003e adds a glazed door and puts more of the heat into the room. Both come in a through the wall version that is fed from the next room, the \u003ca href=\"\/products\/huum-hive-wood-17-ls\"\u003eHIVE Wood 17 LS\u003c\/a\u003e and the \u003ca href=\"\/products\/huum-hive-flow-ls\"\u003eHIVE Flow LS\u003c\/a\u003e. They hold European certification and no North American listing, and the chimney has to satisfy your building department, so talk to us before you plan one. Every stove page sets out what that means.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eSide by side\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eThe Five Families Compared: Mounting, Output, Room and Stone\u003c\/h2\u003e\n\u003cdiv class=\"hum-tblwrap\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;min-width:620px\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1A1410;color:#F5EFE2\"\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eFamily\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eMounting\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eOutput\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eRoom at 240 V\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eStone it holds\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eBoxes\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eStone size\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eDROP 4 to 9\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eWall\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4.5 to 9 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e106 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 121.3 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e2 to 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eCLIFF Mini 4\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eWall bracket\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 132 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e1.2 to 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eCLIFF 6 to 11\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eFloor\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e6 to 11 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e177 to 566 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 165 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e1.2 to 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eSTEEL Mini 4\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eWall bracket\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 132 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e1.2 to 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eSTEEL 6 to 11\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eFloor\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e6 to 11 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e177 to 566 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 330 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e1.2 to 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eHIVE Mini 6 to 11\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eFloor\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e6 to 10.6 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e177 to 566 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e331 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e2 to 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eHIVE 12 to 18\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eFloor\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e424 to 989 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e16 boxes\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e2 to 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eCORE 6 to 11\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eFloor\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e6.5 to 10.5 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e177 to 566 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eabout 88.2 lb\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e2 to 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"hum-p\"\u003eEvery figure here is HUUM's own, from the current US manuals. On a 208 volt supply the same heater is rated for a smaller room. The HIVE 12, 15 and 18 are the only models that need two supply circuits and the UKU extension box.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eWhat Size HUUM Sauna Heater Do I Need?\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eSauna heaters are sized on room volume, not floor area, and HUUM publishes a range for every model. Get this right and the room reaches temperature in about an hour and holds it. Get it wrong in either direction and you either wait, or the heater satisfies its thermostat before the stone is charged and the steam comes thin.\u003c\/p\u003e\n\u003cdiv class=\"hum-grid4\"\u003e\n\u003cdiv class=\"hum-tile\"\u003e\n\u003ch4\u003eMeasure in cubic feet\u003c\/h4\u003e\n\u003cp\u003eLength times width times height, in feet. A 7 by 6 room with a 7 foot ceiling is 294 cubic feet, which is a 6 kW job.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-tile\"\u003e\n\u003ch4\u003eCount the cold surfaces\u003c\/h4\u003e\n\u003cp\u003eHUUM's manuals say to add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass wall. We count a full glass door the same way, and it is often enough to move you up a model. The result is your adjusted cubic feet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-tile\"\u003e\n\u003ch4\u003eCheck your voltage\u003c\/h4\u003e\n\u003cp\u003eEvery figure below is for 240 volts. On a 208 volt supply the same heater makes less power and covers a smaller room, so size from the 208 volt row instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-tile\"\u003e\n\u003ch4\u003eMind the ceiling\u003c\/h4\u003e\n\u003cp\u003eHUUM sets a minimum room height per family: 75 inches for the DROP, 77 for the HIVE, 80 for the CORE and 86.6 for the CLIFF and STEEL. It also asks for 44 to 51 inches between the top bench and the ceiling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"hum-swipe\"\u003eSwipe the table sideways on a phone.\u003c\/p\u003e\n\u003cdiv class=\"hum-tblwrap\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;min-width:620px\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1A1410;color:#F5EFE2\"\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eAdjusted room volume\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eOutput\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eCircuit at 240 V\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left\"\u003eHUUM models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e20 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eCLIFF Mini 4, STEEL Mini 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e4.5 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e30 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eDROP 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e6 to 6.5 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e30 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eDROP 6, CLIFF 6, STEEL 6, HIVE Mini 6, CORE 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e7.5 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e40 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eDROP 7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e9 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e50 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eDROP 9, CLIFF 9, STEEL 9, HIVE Mini 9, CORE 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e10.5 to 11 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e50 A\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eCLIFF 11, STEEL 11, HIVE Mini 11, CORE 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e424 to 989 cu. ft.\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eTwo circuits\u003c\/td\u003e\n\u003ctd style=\"padding:11px;border-bottom:1px solid #EDE6DA\"\u003eHIVE 12, HIVE 15, HIVE 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"hum-p\"\u003eFigures are HUUM's own, from its current US manuals. The circuit column is the manufacturer's minimum: sauna heating is a continuous load, so your electrician may size the breaker and conductors larger to meet the code your area has adopted.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eEvery HUUM Heater Needs Two More Things\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eA HUUM heater is three purchases, and the two that catch people out are not optional extras. The heater will not run without them.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eIf you would rather settle all three in one line, we build a \u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003esauna heater package\u003c\/a\u003e for every HUUM electric model: the heater, a UKU control in the panel finish you pick, and the boxes of stone its manual asks for, priced at the parts added together. The three largest round heaters also carry the extension box that output needs. \u003ca href=\"\/collections\/sauna-heater-packages\"\u003eSee every package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hum-grid2\"\u003e\n\u003cdiv class=\"hum-box\"\u003e\n\u003ch3\u003eA UKU control\u003c\/h3\u003e\n\u003cp class=\"hum-p\"\u003eThe UKU's control unit goes outside the hot room, and its manual sets out which panel finishes can be mounted inside. The \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall; the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room is hot when you get home. Local and Wi-Fi come in black or thermo-ash wood, and the glass, mirror and gold panels are Wi-Fi only.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eOne exception worth knowing: the UKU main module handles up to 11 kW on its own, so the HIVE 12, 15 and 18 need the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e as well. Nothing else in the range does, whatever a dealer listing tells you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-box\"\u003e\n\u003ch3\u003eSauna stone, by the box\u003c\/h3\u003e\n\u003cp class=\"hum-p\"\u003eHUUM supplies olivine diabase stone in 33 pound boxes, in two grades: \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003e1.2 to 2 inches\u003c\/a\u003e for the CLIFF and STEEL families, \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003e2 to 4 inches\u003c\/a\u003e for the DROP, HIVE and CORE. The heater sets the quantity, not the room.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eA CORE takes 3 boxes. A DROP, a CLIFF Mini and a STEEL Mini take 4. A CLIFF takes 5, a STEEL or a HIVE Mini 10, and a HIVE 12, 15 or 18 takes 16. The heater may not be switched on until it is properly filled, and a sparsely filled stone bed is a fire hazard rather than a shortcut.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eAdd the boxes from the heater's own page and they travel with the heater at no added shipping cost. Ordered on their own, stone carries a per box shipping charge, shown in the cart before you pay. The details are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eService parts are here too, for later: \u003ca href=\"\/products\/huum-drop-heating-element\"\u003eDROP\u003c\/a\u003e, \u003ca href=\"\/products\/huum-hive-heating-element\"\u003eHIVE and HIVE Mini\u003c\/a\u003e and \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003eCLIFF and STEEL heating elements\u003c\/a\u003e, and a spare \u003ca href=\"\/products\/huum-uku-display-panel\"\u003eUKU display panel\u003c\/a\u003e. HUUM excludes heating elements from its warranty, so they are sold as parts rather than covered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cfigure class=\"hum-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-sauna-heater-stones-close-up.jpg?v=1789893533\u0026amp;width=1040\" alt=\"Close up of the stone cradle and HUUM badge on a DROP sauna heater\" width=\"1040\" height=\"1300\" loading=\"lazy\"\u003e\u003cfigcaption\u003eThe stone sits in the open, in contact with the elements, on every HUUM electric heater.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cp class=\"hum-eyebrow\"\u003eThe difference\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eWhat Sets HUUM Apart From Other Sauna Heater Brands\u003c\/h2\u003e\n\u003cdiv class=\"hum-grid3\"\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eStone in the open\u003c\/h3\u003e\n\u003cp\u003eMost heaters hide their elements behind a steel skin. HUUM runs them through the stone, so water thrown on the stone meets hot rock across the whole face of the heater. It is why these rooms give a softer, wetter heat than the kilowatts suggest.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eA heater you are happy to look at\u003c\/h3\u003e\n\u003cp\u003eHUUM's own account lists international design awards across the range, the Red Dot and the European Product Design Award among them. In a small room the heater is furniture, and HUUM is one of the few brands that treats it that way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eOne control across the range\u003c\/h3\u003e\n\u003cp\u003eThe same UKU runs every HUUM heater, with the app included on the Wi-Fi version. Learn it once and it works whether you buy a DROP for a closet conversion or a HIVE 18 for a commercial room. See both UKU versions beside the other \u003ca href=\"\/collections\/sauna-controls\"\u003esauna controls\u003c\/a\u003e we carry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eListed for North America\u003c\/h3\u003e\n\u003cp\u003eSGS lists HUUM's electric heaters and the UKU Local and Wi-Fi controls for the United States and Canada. The certificate number is on each product page, and we will send your inspector the listing record for your model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eStone mass rather than kilowatts\u003c\/h3\u003e\n\u003cp\u003eA STEEL 6 carries 330 lb of stone against 121.3 lb in a DROP 6 at the same output, and the big HIVE models carry 528 lb. More mass means the room rides out the door opening and holds its temperature through a session with several people.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eSizes that actually cover the range\u003c\/h3\u003e\n\u003cp\u003eFrom a 106 cubic foot closet conversion to a 989 cubic foot commercial room, on the same design language and the same control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eWhere to start\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eWhich HUUM Heater Suits Which Room\u003c\/h2\u003e\n\u003cdiv class=\"hum-grid2\"\u003e\n\u003cdiv class=\"hum-pick\"\u003e\u003cdiv class=\"hum-pick-body\"\u003e\n\u003ch3\u003eDROP 6, 6kW\u003c\/h3\u003e\n\u003cp class=\"hum-pick-for\"\u003eBest for the common two to four person home sauna, 177 to 318 cubic feet. Hangs on the wall, so it takes no floor, and runs on the same 30 amp circuit as the 4.5 kW.\u003c\/p\u003e\n\u003ca class=\"hum-pick-btn\" href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003eSee the DROP 6\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-pick\"\u003e\u003cdiv class=\"hum-pick-body\"\u003e\n\u003ch3\u003eSTEEL 9, 9kW\u003c\/h3\u003e\n\u003cp class=\"hum-pick-for\"\u003eBest when you want stone mass on a small footprint: 330 lb of it in a 12.6 inch square body, for rooms to 460 cubic feet.\u003c\/p\u003e\n\u003ca class=\"hum-pick-btn\" href=\"\/products\/huum-steel-9-electric-sauna-heater\"\u003eSee the STEEL 9\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-pick\"\u003e\u003cdiv class=\"hum-pick-body\"\u003e\n\u003ch3\u003eCORE 9, 9kW\u003c\/h3\u003e\n\u003cp class=\"hum-pick-for\"\u003eBest when the heater has to disappear into the room. Finished in alder, aspen or thermo-aspen to match your benches, or left black.\u003c\/p\u003e\n\u003ca class=\"hum-pick-btn\" href=\"\/products\/huum-core-9-electric-sauna-heater\"\u003eSee the CORE 9\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-pick\"\u003e\u003cdiv class=\"hum-pick-body\"\u003e\n\u003ch3\u003eHIVE 12, 12kW\u003c\/h3\u003e\n\u003cp class=\"hum-pick-for\"\u003eBest for a large or commercial room, 424 to 636 cubic feet, with 528 lb of stone to ride out group after group. Needs two circuits and the UKU extension box.\u003c\/p\u003e\n\u003ca class=\"hum-pick-btn\" href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eSee the HIVE 12\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eElectrical and installation\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eWhat a HUUM Heater Asks of Your Electrician\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eEvery HUUM electric heater is hardwired by a licensed electrician, on two supply circuits for the HIVE 12, 15 and 18, and the control is wired in with it. The DROP, CLIFF, STEEL and HIVE manuals call for cable meeting UL 62 in the United States or CSA 49 in Canada, no cable with non heat resistant PVC insulation, and a waterproof junction box low on the wall; the DROP and HIVE manuals also make crimped cable ends mandatory. The CORE is wired to the National Electrical Code, which is the condition SGS records against its listing.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eHUUM recommends connecting its heaters without a GFCI breaker. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\n\u003cdiv class=\"hum-warn\"\u003e\u003cp\u003e\u003cstrong\u003eProfessional installation is a warranty condition.\u003c\/strong\u003e HUUM can ask for proof that a licensed electrician installed and connected the heater, so keep the invoice with your receipt. The room itself also has to be built for a sauna, with an insulated shell, a vapor barrier and supply and exhaust vents.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp class=\"hum-p\"\u003eA guard is a code item rather than an upsell: the residential code asks for sauna heaters to be protected from accidental contact by a guard of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM sells a rail for the DROP, CLIFF, STEEL, HIVE and HIVE Mini; around a CORE the guard is built rather than bought. Either way the heater's clearances have to be kept to the railing itself.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eBuying from us\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eDelivery, Warranty and Returns on HUUM\u003c\/h2\u003e\n\u003cdiv class=\"hum-grid3\"\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eHow it arrives\u003c\/h3\u003e\n\u003cp\u003eThe DROP ships as a parcel and needs nobody home. The CLIFF, STEEL, HIVE and CORE come palletized by freight, including the wall mounted CLIFF Mini and STEEL Mini, by appointment, to the curb. Stone travels in its own boxes. Full details on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eThree years in a private sauna, one year in a commercial one, with elements, sensors and stone excluded. We file the claim for you rather than sending you to Estonia. The full manufacturer text is on our \u003ca href=\"\/pages\/huum-warranty-policy\"\u003eHUUM warranty policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hum-card\"\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cp\u003eThirty days from purchase on a new, uninstalled heater. There is no percentage restocking fee, though a repackaging fee of 20 to 50 dollars applies, depending on the item. See the \u003ca href=\"\/pages\/huum-return-policy\"\u003eHUUM return policy\u003c\/a\u003e for the conditions and who pays the freight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap hum-faq\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eQuestions answered\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eHUUM Sauna Heaters: Questions Answered\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhere are HUUM sauna heaters made?\u003c\/summary\u003e\u003cp\u003eHUUM is an Estonian company, founded by Siim Nellis, a third generation sauna stove producer, and its heaters are designed and built in Estonia. The DROP was developed in 2011 with the Estonian Academy of Arts and won the Red Dot product design award in 2015.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre HUUM heaters listed for use in the United States?\u003c\/summary\u003e\u003cp\u003eYes. SGS, which is on OSHA's list of nationally recognized testing laboratories, lists HUUM's electric heaters and the UKU Local and UKU Wi-Fi controls for the United States and Canada. The certificate number for each model is on its product page and we will send your inspector the listing record. HUUM's wood stoves hold European certification only, with no North American listing, so a local building department decides on those.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need a control with a HUUM heater?\u003c\/summary\u003e\u003cp\u003eYes, and it is a separate purchase. Every HUUM electric heater is run from a certified control mounted outside the hot room, and HUUM's matched control is the UKU, in Local or Wi-Fi form. A heater in a public sauna also has to have a timer.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes a HUUM heater come with stones?\u003c\/summary\u003e\u003cp\u003eNo. Stone is ordered by the box, and the heater sets the quantity: 3 boxes for a CORE, 4 for a DROP, CLIFF Mini or STEEL Mini, 5 for a CLIFF, 10 for a STEEL or HIVE Mini, and 16 for a HIVE 12, 15 or 18. HUUM supplies olivine diabase stone in 33 pound boxes in two grades, and the heater may not be switched on before it is properly filled.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size HUUM heater do I need?\u003c\/summary\u003e\u003cp\u003eMeasure the room in cubic feet, then add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass wall, which is HUUM's rule, and count a full glass door the same way. Match that adjusted figure to the model's published range: 4 kW covers 106 to 177 cubic feet and 18 kW covers 636 to 989. If your supply is 208 volts rather than 240, size from the 208 volt figures instead, because the same heater makes less power.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the UKU extension box, and do I need one?\u003c\/summary\u003e\u003cp\u003eIt is an extra module for heaters above 11 kW, which in this range means the HIVE 12, HIVE 15 and HIVE 18. Every other HUUM heater runs from the UKU's main module on its own. Dealer listings quote several different thresholds for it, which is where the confusion comes from.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install a HUUM heater myself?\u003c\/summary\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with a HUUM heater?\u003c\/summary\u003e\u003cp\u003eThree years in a private sauna and one year in a commercial one, from the date of purchase, with spare parts covered for one year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded. HUUM counts it as commercial use if a registered business uses the product commercially, if a private owner uses it commercially, or if a private owner runs it for more than 1,500 hours in any 12 months.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long does a HUUM sauna heater take to heat a room?\u003c\/summary\u003e\u003cp\u003eHUUM's manuals put it at about an hour in a properly insulated room with a correctly sized heater, with the stone reaching throwing temperature at about the same time as the air.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does a HUUM heater cost to run?\u003c\/summary\u003e\u003cp\u003eMultiply the output by your electricity rate for the ceiling: a 6 kW heater at the US average residential price of 18.3 cents a kilowatt hour, the EIA figure for June 2026, is about 1.10 dollars an hour at full draw. Once the room is at temperature the heater cycles rather than drawing full power, so a real session lands under that.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003ePaying for it\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eFinancing a HUUM Order\u003c\/h2\u003e\n\u003cdiv class=\"hum-box\"\u003e\u003cp class=\"hum-p\" style=\"margin:0\"\u003eA HUUM order is rarely the heater alone. The control, the stone and the electrician tend to land in the same month, which is why most buyers spread the cost. Shop Pay Installments is offered at checkout, with the terms and your eligibility shown once the cart is complete. There is nothing to apply for beforehand, and looking at the options does not affect your credit score.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eCommercial rooms\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eHUUM in a Gym, Spa or Hotel Room\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eTwo things change when the room is commercial. HUUM's warranty runs 3 years in a private sauna and 1 year in commercial use, and the code asks more of a shared room than a domestic one, including a control mounted outside the hot room and a guard where people can touch the heater.\u003c\/p\u003e\n\u003cp class=\"hum-p\"\u003eThe HIVE 18 heats the largest room in the HUUM electric range, 636 to 989 cubic feet, and it needs two supply circuits and the UKU extension box. If you are specifying for several rooms, we quote on volume and work from your drawings. Start at \u003ca href=\"\/pages\/commercial-sales\"\u003ecommercial sales\u003c\/a\u003e or call \u003ca href=\"tel:+18885005675\"\u003e(888) 500-5675\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cp class=\"hum-eyebrow\"\u003eKeep looking\u003c\/p\u003e\n\u003ch2 class=\"hum-h2\"\u003eBrowse Other Categories\u003c\/h2\u003e\n\u003cp class=\"hum-p\"\u003eWhere HUUM sits alongside the rest of what we carry.\u003c\/p\u003e\n\u003cdiv class=\"hum-nav\"\u003e\n\u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eElectric sauna heaters\u003cspan\u003eEvery electric heater we carry, all brands\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/collections\/sauna-heaters\"\u003eAll sauna heaters\u003cspan\u003eElectric and wood burning together\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/collections\/sauna-heater-packages\"\u003eHeater packages\u003cspan\u003eHeater, control and stone in one order\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/collections\/traditional-saunas\"\u003eTraditional saunas\u003cspan\u003eRooms and barrels built for a stone heater\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"hum-sec w\"\u003e\u003cdiv class=\"hum-wrap\"\u003e\n\u003cdiv class=\"hum-cta\"\u003e\n\u003ch2\u003eNot Sure Which HUUM Heater Fits Your Room?\u003c\/h2\u003e\n\u003cp\u003eTell us the room dimensions and how the walls are built and we will walk you through HUUM's own figures for output, circuit and stone before you order.\u003c\/p\u003e\n\u003cdiv class=\"hum-btns\"\u003e\n\u003ca class=\"hum-btn\" href=\"\/pages\/find-your-sauna-heater\"\u003eFind the right heater\u003c\/a\u003e\n\u003ca class=\"hum-btn alt\" href=\"tel:+18885005675\"\u003eSpeak with an Expert, (888) 500-5675\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"huum-drop-6-electric-sauna-heater","title":"HUUM DROP 6 6kW Electric Sauna Heater","description":"\u003cstyle\u003e.hdrop6{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop6 *{box-sizing:border-box}.hdrop6 .hdrop6-c img{margin:0 !important;border:0}.hdrop6 .hdrop6-c{max-width:1000px;margin:0 auto;padding:0 20px}.hdrop6 section{padding:52px 0}.hdrop6 section:first-of-type{padding-top:26px}.hdrop6 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8px;letter-spacing:-.02em;font-variant-numeric:tabular-nums;text-wrap:balance;max-width:none}.hdrop6 .hdrop6-stat3 p{font-size:15.5px;line-height:1.5;color:#C3B6A5;margin:0}.hdrop6 .hdrop6-chk{list-style:none;padding:0;margin:16px 0 0;max-width:none;display:grid;grid-template-columns:1fr 1fr;gap:0 32px;border-top:1px solid var(--line)}.hdrop6 .hdrop6-chk li{padding:14px 0 14px var(--gut);border-bottom:1px solid var(--rule);position:relative;font-size:17px}.hdrop6 .hdrop6-chk li::before{content:\"\";position:absolute;left:0;top:calc(14px + .82em);margin-top:-3px;width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}.hdrop6 .hdrop6-chk b{color:var(--ink)}.hdrop6 .hdrop6-chk span{display:block;color:var(--sub);font-size:15.5px;margin-top:8px}.hdrop6 .hdrop6-chk--plain{grid-template-columns:1fr;gap:0}.hdrop6 .hdrop6-chk--plain li{padding-left:0}.hdrop6 .hdrop6-chk--plain li::before{display:none}.hdrop6 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0;background:#fff}.hdrop6 .hdrop6-tw--scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.hdrop6 table{border-collapse:collapse;width:100%;font-size:15.5px;background:#fff}.hdrop6 table caption{caption-side:top;text-align:left;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);padding:13px var(--gut);background:var(--fill);border-bottom:1px solid var(--edge)}.hdrop6 table th,.hdrop6 table td{padding:11px var(--gut);text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}.hdrop6 table tr:last-child th,.hdrop6 table tr:last-child td{border-bottom:0}.hdrop6 table.hdrop6-spec th{color:var(--ink);font-weight:600;width:46%}.hdrop6 table.hdrop6-spec td{font-variant-numeric:tabular-nums}.hdrop6 .hdrop6-keyspec caption{background:var(--dark);color:#fff;border-bottom:0}.hdrop6 .hdrop6-hl td,.hdrop6 .hdrop6-hl th{background:var(--hl)}.hdrop6 table.hdrop6-cmp{min-width:680px}.hdrop6 table.hdrop6-cmp thead th{vertical-align:bottom;padding-top:14px;padding-bottom:12px}.hdrop6 .hdrop6-cmp-h{display:block;font-size:11px;font-weight:600;color:var(--sub);line-height:1.2;margin-bottom:8px}.hdrop6 .hdrop6-cmp-m{display:block;font-size:15.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.2}.hdrop6 table.hdrop6-cmp thead a{text-decoration:none;display:block}.hdrop6 table.hdrop6-cmp thead a:hover .hdrop6-cmp-m{color:var(--accent);text-decoration:underline}.hdrop6 table.hdrop6-cmp thead a .hdrop6-cmp-m::after{content:\"\\2197\";font-size:11px;font-weight:600;color:var(--accent);margin-left:5px;vertical-align:1px}.hdrop6 .hdrop6-cmp-here{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--bright);margin-top:8px}.hdrop6 table.hdrop6-cmp thead th.hdrop6-me .hdrop6-cmp-h{color:#C3B6A5}.hdrop6 table.hdrop6-cmp thead th.hdrop6-me .hdrop6-cmp-m{color:#fff}.hdrop6 table.hdrop6-cmp thead th{background:var(--fill);color:var(--ink);font-size:11px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--edge)}.hdrop6 table.hdrop6-cmp thead th.hdrop6-me{background:var(--dark);color:#fff}.hdrop6 table.hdrop6-cmp td.hdrop6-me{background:var(--hl);font-weight:600;color:var(--ink)}.hdrop6 table.hdrop6-cmp td:first-child{color:var(--sub)}.hdrop6 .hdrop6-ladder td:last-child{text-align:right;white-space:nowrap;color:var(--sub)}.hdrop6 .hdrop6-ladder .hdrop6-kw{font-weight:700;color:var(--ink);font-size:17px;white-space:nowrap}.hdrop6 .hdrop6-ladder tr.hdrop6-on td{background:var(--hl)}.hdrop6 .hdrop6-ladder .hdrop6-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;background:var(--accent);color:#fff;padding:3px 8px;border-radius:var(--r-xs);margin-left:9px;vertical-align:2px}.hdrop6 .hdrop6-warn{background:#fff;border:1px solid var(--warm);border-left:3px solid var(--accent);border-radius:0 var(--r-lg) var(--r-lg) 0;padding:18px var(--gut) 18px calc(var(--gut) - 3px);margin:24px 0 0;max-width:none}.hdrop6 .hdrop6-warn p{max-width:none}.hdrop6 .hdrop6-warn p{margin:0;font-size:17px}.hdrop6 .hdrop6-warn b{display:block;color:var(--ink);margin-bottom:8px}.hdrop6 blockquote{margin:16px 0 0;padding:0 0 0 20px;border-left:3px solid var(--bright);max-width:58ch}.hdrop6 blockquote p{font-size:19px;line-height:1.5;color:var(--ink);margin:0 0 8px}.hdrop6 blockquote cite{font-style:normal;font-size:13.5px;color:var(--sub)}.hdrop6 .hdrop6-pairup{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:32px;align-items:start;margin:24px 0 0}.hdrop6 .hdrop6-pairup\u003e.hdrop6-tw{margin-top:0}.hdrop6 .hdrop6-after{margin-top:24px}.hdrop6 .hdrop6-split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}.hdrop6 .hdrop6-split\u003efigure img{max-height:440px;object-fit:cover;width:100%}.hdrop6 .hdrop6-pairup\u003efigure img{max-height:320px;object-fit:cover;width:100%}.hdrop6 .hdrop6-pairup\u003ediv\u003e.hdrop6-tw{margin-top:0}.hdrop6 blockquote cite{display:block;margin-top:8px}.hdrop6 figcaption{font-size:13.5px;color:var(--sub);margin-top:8px;line-height:1.5}.hdrop6 .hdrop6-more{margin:24px 0 0}.hdrop6 .hdrop6-more\u003esummary{font-size:15.5px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;padding:14px var(--gut);background:var(--fill);border:1px solid var(--warm);border-radius:var(--r-lg);position:relative}.hdrop6 .hdrop6-more\u003esummary::-webkit-details-marker{display:none}.hdrop6 .hdrop6-more\u003esummary::after{content:\"\";position:absolute;right:var(--gut);top:20px;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}.hdrop6 .hdrop6-more[open]\u003esummary::after{transform:rotate(225deg)}.hdrop6 .hdrop6-rl{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 8px !important}@media screen and (max-width:840px){}.hdrop6 .hdrop6-faq{border-top:1px solid var(--line);margin-top:16px}.hdrop6 .hdrop6-faq details{border-bottom:1px solid var(--line)}.hdrop6 .hdrop6-faq summary{cursor:pointer;padding:17px 36px 17px 0;position:relative;list-style:none;font-size:17px;font-weight:600;color:var(--ink)}.hdrop6 .hdrop6-faq summary::-webkit-details-marker{display:none}.hdrop6 .hdrop6-faq summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hdrop6 .hdrop6-faq details[open] summary::after{transform:rotate(225deg)}.hdrop6 .hdrop6-faq .hdrop6-fb{padding:0 0 18px;max-width:68ch}.hdrop6 .hdrop6-faq .hdrop6-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hdrop6 .hdrop6-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hdrop6 .hdrop6-close h2{color:#fff;max-width:22ch}.hdrop6 .hdrop6-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hdrop6 .hdrop6-close .hdrop6-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hdrop6 .hdrop6-close .hdrop6-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hdrop6 .hdrop6-close .hdrop6-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hdrop6 .hdrop6-close .hdrop6-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hdrop6 .hdrop6-close .hdrop6-who span{display:block}.hdrop6 .hdrop6-c .hdrop6-btn,.hdrop6 .hdrop6-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hdrop6 .hdrop6-c .hdrop6-btn:hover,.hdrop6 .hdrop6-btn:hover{background:var(--ink);color:#fff}.hdrop6 .hdrop6-close .hdrop6-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hdrop6 .hdrop6-close .hdrop6-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hdrop6 .hdrop6-pairup{grid-template-columns:1fr;gap:24px}.hdrop6 .hdrop6-chk{grid-template-columns:1fr}.hdrop6 .hdrop6-vidrow{flex-direction:column;align-items:stretch}.hdrop6 .hdrop6-vid{--cap:380px;align-self:center}.hdrop6 .hdrop6-vidrow{gap:24px}.hdrop6 .hdrop6-c{padding:0 16px}.hdrop6 section{padding:40px 0}.hdrop6 section:first-of-type{padding-top:20px}.hdrop6 h2{font-size:23px}.hdrop6 p.hdrop6-lead{font-size:17px}.hdrop6 .hdrop6-stat3{grid-template-columns:1fr}.hdrop6 .hdrop6-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hdrop6 .hdrop6-stat3\u003ediv:last-child{border-bottom:0}.hdrop6 .hdrop6-split{grid-template-columns:1fr;gap:24px}.hdrop6 .hdrop6-buy{grid-template-columns:1fr}.hdrop6 .hdrop6-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hdrop6 .hdrop6-toc\u003esummary{display:none}.hdrop6 .hdrop6-toc ol{display:grid !important}}@media screen and (max-width:560px){.hdrop6 .hdrop6-ladder thead{position:absolute;left:-9999px}.hdrop6 .hdrop6-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hdrop6 .hdrop6-ladder tr.hdrop6-on{background:var(--hl)}.hdrop6 .hdrop6-ladder td{display:block;border:0;padding:0}.hdrop6 .hdrop6-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hdrop6 .hdrop6-hl td,.hdrop6 .hdrop6-hl th,.hdrop6 .hdrop6-ladder tr.hdrop6-on td,.hdrop6 table.hdrop6-cmp td.hdrop6-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hdrop6 table.hdrop6-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hdrop6 table th,.rte .hdrop6 table td{padding:11px var(--gut)}.hdrop6 .hdrop6-ladder th:last-child,.hdrop6 .hdrop6-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hdrop6 .hdrop6-buy{align-items:start}.hdrop6 .hdrop6-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hdrop6 table.hdrop6-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hdrop6 table.hdrop6-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hdrop6 .hdrop6-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hdrop6 table.hdrop6-spec th,.hdrop6 table.hdrop6-spec td{display:block;width:auto}.hdrop6 table.hdrop6-spec th{border-bottom:0;padding-bottom:0}}.hdrop6 .hdrop6-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hdrop6 .hdrop6-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop6 .hdrop6-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop6 .hdrop6-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop6 .hdrop6-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop6 .hdrop6-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop6 .hdrop6-close p.hdrop6-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop6 .hdrop6-stat3 a{color:var(--bright)}.hdrop6 .hdrop6-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop6 .hdrop6-cmp thead a .hdrop6-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop6 .hdrop6-ladder.hdrop6-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop6 .hdrop6-ladder.hdrop6-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop6 .hdrop6-tw + p,.hdrop6 .hdrop6-tw + h3,.hdrop6 .hdrop6-warn + p,.hdrop6 .hdrop6-warn + h3,.hdrop6 .hdrop6-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdrop6\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cdetails class=\"hdrop6-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop6-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eThe one most home saunas land on\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM DROP 6 is a 6 kW wall mounted electric sauna heater for rooms of 177 to 318 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eSix kilowatts covers the middle of the home market, rooms from 177 to 318 cubic feet. It is also the largest DROP that runs on the same circuit as the 4.\u003c\/p\u003e\n    \u003cp\u003eThe DROP hangs on the wall as an upright open cradle of stone. The 3 elements run through the stone rather than behind a panel, so the stone is the thing you see, and HUUM rates this size for 177 to 318 cubic feet at 240 volts.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop6-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hdrop6-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick. HUUM does not say whether a glass door counts, so counting it is the cautious choice, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop6-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hdrop6-big\"\u003e25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable, the same circuit the DROP 4 needs on 240 volts. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop6-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hdrop6-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 121.3 lb (55 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-vidrow\"\u003e\n    \u003cdiv class=\"hdrop6-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hdrop6-vidbody\"\u003e\n    \u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hdrop6-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM DROP 6 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height: a 7 by 5 room with a 7 foot ceiling is 35 square feet and 245 cubic feet. Pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the DROP 6 for \u003cstrong\u003e177 to 318 cubic feet\u003c\/strong\u003e on a 240 volt supply.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer and most buyers forget them. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass in the room. The result is your adjusted cubic feet, and that is the number HUUM's range refers to. A single glass door is often enough to push a borderline room up a model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-ladder hdrop6-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6-kw\"\u003eDROP 4\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft. at 240 V, 89 to 177 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop6-on\"\u003e\n\u003ctd class=\"hdrop6-kw\"\u003eDROP 6 \u003cspan class=\"hdrop6-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6-kw\"\u003eDROP 7\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft. at 240 V, 177 to 301 at 208 V\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6-kw\"\u003eDROP 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the DROP 6\u003c\/h3\u003e\n    \u003cp\u003eTake a two to four person sauna 7 feet by 6 feet with a 7 foot ceiling. That is 42 square feet and 294 cubic feet, inside this heater's 177 to 318. Add a full glass door, take 13 square feet as an example and measure your own, and the adjustment of 3.3 cubic feet a square foot puts the room at roughly 337, which is past the DROP 6 and into DROP 7 territory. A glass door is the single most common reason a room that looks like a 6 kW job is not one.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a DROP is 75 inches (1900 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. HUUM advises lowering a taller ceiling into its recommended range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eWhat makes it a DROP\u003c\/p\u003e\n    \u003ch2\u003eWhy the DROP 6 looks like a basket of stone\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eMost electric heaters hide their elements behind a steel skin and vent hot air off the top. The DROP does the opposite, and that is the whole reason to choose one.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n        \u003cp\u003eAbout 121.3 lb (55 kg) of stone sits in an open cradle with the 3 elements running through it. Ladle onto the stone, never onto the metal, and the water meets hot rock across the whole face of the heater rather than one small tray, so the steam arrives soft and even rather than sharp.\u003c\/p\u003e\n        \u003ch3\u003eIt takes no floor\u003c\/h3\u003e\n        \u003cp\u003eThe heater hangs on the frame in the box and stands 23.2 inches tall by 15.4 wide and 13.2 deep, so it uses wall rather than floor. In a small room that is usually the difference between a bench you can lie on and one you cannot.\u003c\/p\u003e\n        \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n        \u003cp\u003eWith the \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eDROP embedding flange\u003c\/a\u003e the heater drops into a bench or the floor, as long as at least 15 inches of it stays above the surface. The flange covers the cut edges.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hdrop6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-6-studio.jpg?v=1789889006\u0026amp;width=1200\" alt=\"HUUM DROP wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe DROP hangs on a wall frame and carries its stone in the open.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhy the DROP 6 is the usual answer\u003c\/h3\u003e\n    \u003cp\u003eTwo things make this the common choice. The room range covers the majority of home saunas, and on a 240 volt supply the circuit is the one the DROP 4 already needs: a 30 amp breaker and 10 AWG cable in HUUM's manual. On 240 volts, stepping up from the 4 to the 6 does not change what HUUM asks for. Whether your electrician can reuse the same breaker and cable is their call, because a continuous load is sized with headroom, so confirm it before you assume the panel work is identical. On 208 volts the two models differ anyway, 20 amps against 30.\u003c\/p\u003e\n\u003cp\u003eAbove this size the electrical work changes. The DROP 7 calls for a 40 amp breaker and thicker 8 AWG cable, the DROP 9 for 50 amps. If your room sits near the top of this heater's range, price that panel work before you decide which way to go.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003e\u003cb\u003eThe heat diverter is in the carton on every DROP size, not just the 9 kW.\u003c\/b\u003e It protects the wall behind the heater and the corner of the ceiling. That changed with HUUM's April 2026 manual, and several dealer listings still show the old arrangement.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working DROP 6 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eA sauna heater is three purchases, and the other two are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hdrop6-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page. Ships by parcel carrier.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-drop-safety-rail\"\u003eDROP safety rail\u003c\/a\u003e. HUUM adds that when the railing is a flammable material such as wood, the heater's minimum clearances still have to be kept to the railing itself. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n    \u003cp\u003eA \u003ca href=\"\/products\/huum-drop-drip-tray\"\u003edrip tray\u003c\/a\u003e protects the floor under the heater from stone dust and splash. The \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003eHUUM DROP 6 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM DROP 6 needs\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-ladder hdrop6-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hdrop6-on\"\u003e\n\u003ctd class=\"hdrop6-kw\"\u003e240 V\u003cspan class=\"hdrop6-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6 kW, 25 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hdrop6-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW, 21.63 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and any junction box inside the sauna must be waterproof and no higher than 19 11\/16 inches off the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide. Settle it with your electrician at the rough-in, and ask about nuisance tripping while you are there.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 6 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM DROP 6 can go\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eA wall mounted sauna heater still has clearances, and every DROP size has its own set, because a hotter heater needs more room around it. These are this model's figures, and they assume the stone bed is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, DROP 6\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the side wall\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBelow the heater, to the floor\u003c\/th\u003e\n\u003ctd\u003e3 15\/16 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight on the wall\u003c\/th\u003e\n\u003ctd\u003e24.3 lb empty. HUUM gives 143.3 lb for a DROP with its stone in.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's Table 1 carries further setting-out dimensions that only make sense against the manual's own drawing, which we can send before you order.\u003c\/p\u003e\n    \u003cp\u003eThe frame carries the whole loaded weight, so check what is in that stud bay before the lining boards go on, and run the cable at the same time.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-6-in_sauna.jpg?width=1200\" alt=\"HUUM DROP in a sauna with the HUUM DROP safety rail (sold separately) fitted\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the DROP 6 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 6 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 121.3 lb (55 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for natural stone 2 to 4 inches (5 to 10 cm) across, and supplies olivine diabase in 33 pound boxes. Decorative stone is not a substitute: it stores little heat, breaks up, and the pieces block the airflow the elements depend on.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eHUUM films the job for the DROP; ask us and we will send you the link to its stone placement film.\u003c\/p\u003e\n    \u003cp\u003eWash the stone first. Lay it piece by piece rather than pouring it in, biggest at the bottom and the sides, smaller pieces wedging them in place. Pack the outer face tightly enough that no element shows through, but leave air paths inside. \u003c\/p\u003e\n    \n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e The clearances on this page assume the elements are covered by stone. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eFour boxes, the same as every other DROP. The stone load does not change across the range, so stepping from the 4 to the 6 buys output, not mass.\u003c\/p\u003e\n    \u003ch3\u003eHUUM's own warnings\u003c\/h3\u003e\n    \u003cp\u003eWorth reading before the first session, in HUUM's words: the heater may be used only when it has been correctly filled with stones; do not cover it, because that causes a fire hazard; do not touch a working heater, because it causes burns; never make steam with a water hose; use fragrances and oils only in the steam water, because poured onto the stones undiluted they can catch fire; sauna doors should always open outward; never ladle water while someone is close to the heater, because the steam can burn; and do not leave small children in the sauna unattended. HUUM adds that sudden cooling after a sauna is not recommended for people in poor health, who should ask a doctor first.\u003c\/p\u003e\n    \u003ch3\u003eLooking after it\u003c\/h3\u003e\n    \u003cp\u003eHUUM asks for a visual check after about 100 hours of use or at least once a year, a rearrange and replacement of any cracked pieces at about 200 hours, and all of it replaced at about 400 hours. Stone crumbles as it cycles, and the dust is what eventually blocks the airflow.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-6-stones_detail.jpg?width=1200\" alt=\"Stones and steam on the HUUM DROP sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the DROP 6 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e6 kW x 0.183 = about 1.10 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 3.29 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 10 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the heater is off more than it is on, so the real bill lands under them. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e A sauna that leaks heat runs the elements continuously, which costs more and wears them out sooner.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the DROP 6 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop6-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hdrop6-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003eHeater mounting plate\u003c\/li\u003e\n\u003cli\u003eReflector\u003c\/li\u003e\n\u003cli\u003eHeating element spacers\u003c\/li\u003e\n\u003cli\u003eHeating element retainer\u003c\/li\u003e\n\u003cli\u003eHeat diverter with fastenings\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater; the rail, drip tray and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 6 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hdrop6-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-spec\"\u003e\n\u003ccaption\u003eFrom the DROP 2.0 User Manual US v8 (April 2026), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e6 kW at 240 V, 4.5 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e177 to 318 adjusted cu. ft. at 240 V, 142 to 248 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e75 in (1900 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e25 A at 240 V, 21.63 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating elements\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight with stone\u003c\/th\u003e\n\u003ctd\u003e143.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hdrop6-tw\"\u003e\u003ctable class=\"hdrop6-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1001062\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e24.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 6 against the rest of the DROP range\u003c\/h2\u003e\n    \u003cp class=\"hdrop6-lead\"\u003eAll four take the same wall frame, the same stone load and the same controls. The choice is room volume and the circuit you can supply. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop6-tw hdrop6-tw--scroll\"\u003e\u003ctable class=\"hdrop6-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-4-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-m\"\u003eDROP 4\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-here\"\u003e4.5 kW, 106 to 248 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hdrop6-me\"\u003e\n\u003cspan class=\"hdrop6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-m\"\u003eDROP 6\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-7-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-m\"\u003eDROP 7\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-here\"\u003e7.5 kW, 248 to 389 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-9-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-m\"\u003eDROP 9\u003c\/span\u003e\u003cspan class=\"hdrop6-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e18.75 A\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e31.25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElements\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e3\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd class=\"hdrop6-me\"\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a DROP is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe DROP tops out at 9 kW and hangs on a wall. For a room above 460 cubic feet, or a commercial room that reheats group after group, a STEEL at about 330 pounds of stone, or a HIVE at 528, holds temperature better. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hdrop6-c\"\u003e\n    \u003cp class=\"hdrop6-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 6 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop6-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM DROP 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet on 240 volts, or 142 to 248 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile. HUUM does not say whether a glass door counts, so counting it is the cautious choice, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 6 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eNo. Every HUUM heater needs a separate certified control, bought separately. The control unit goes outside the hot room, its own manual sets out which panel finishes may be mounted inside, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM DROP 6 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 121.3 lb (55 kg) and HUUM asks for natural stone 2 to 4 inches across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM DROP 6 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eOn 240 volts it draws 25 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 21.63 A, a 30 A breaker and 10 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM DROP 6 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM DROP 6 myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 6 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide, so settle it with your electrician before the rough-in.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 6 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. Every DROP runs from the UKU's main module on its own. Dealer listings quote several different thresholds for the box, which is where the confusion comes from.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow long does the HUUM DROP 6 take to heat a sauna?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eHUUM's manual says about an hour in a properly insulated room with a correctly sized heater, with the stone reaching throwing temperature at about the same time as the air. A leaky room or an undersized heater takes longer and costs more to run.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM DROP 6?\u003c\/summary\u003e\u003cdiv class=\"hdrop6-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop6-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop6-c\"\u003e\n\u003cp class=\"hdrop6-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hdrop6-who\"\u003e\n\u003cimg class=\"hdrop6-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop6-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop6-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53500463382895,"sku":"H1001062","price":1506.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-6-studio.jpg?v=1789889006"},{"product_id":"huum-uku-local-sauna-heater-control","title":"HUUM UKU Local Sauna Heater Control","description":"\u003cstyle\u003e.hukul{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hukul *{box-sizing:border-box}.hukul .hukul-c 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.hukul-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hukul .hukul-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hukul .hukul-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hukul .hukul-close p.hukul-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hukul .hukul-stat3 a{color:var(--bright)}.hukul .hukul-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hukul .hukul-cmp thead a .hukul-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hukul .hukul-ladder.hukul-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hukul .hukul-ladder.hukul-out td:last-child::before{content:\"Output:\\00a0\"}}.hukul .hukul-tw + p,.hukul .hukul-tw + h3,.hukul .hukul-warn + p,.hukul .hukul-warn + h3,.hukul .hukul-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hukul\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cdetails class=\"hukul-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hukul-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#which\"\u003eLocal or Wi-Fi\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#install\"\u003eInstallation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heaters\"\u003eHeaters it runs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eHUUM's matched control\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM UKU Local runs any HUUM electric heater from a panel on the wall\u003c\/h2\u003e\n    \u003cp class=\"hukul-lead\"\u003eEvery HUUM electric heater needs a separate control, and the UKU is the one HUUM makes for them, and the controller SGS evaluated HUUM's DROP, CLIFF, STEEL and HIVE heaters with. The Local version does everything from the panel on the wall, with no app and no network to set up.\u003c\/p\u003e\n    \u003cdiv class=\"hukul-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukul-lbl\"\u003eHeaters it runs\u003c\/p\u003e\n        \u003cp class=\"hukul-big\"\u003eUp to 11 kW alone\u003c\/p\u003e\n        \u003cp\u003eThe main module runs every DROP, CLIFF, STEEL, HIVE Mini and CORE on its own. The HIVE 12, 15 and 18 also need the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukul-lbl\"\u003eTemperature\u003c\/p\u003e\n        \u003cp class=\"hukul-big\"\u003e104 to 230°F\u003c\/p\u003e\n        \u003cp\u003eSet on the panel. The sauna's heating time is capped at 3 or 6 hours in a private sauna, a limit you choose in the panel's menu.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukul-lbl\"\u003eFinishes\u003c\/p\u003e\n        \u003cp class=\"hukul-big\"\u003eTwo panels\u003c\/p\u003e\n        \u003cp\u003eBlack or thermo-ash wood. The glass, mirror and gold panels come only on the UKU Wi-Fi. The panel is also sold on its own, as a \u003ca href=\"\/products\/huum-uku-display-panel\"\u003espare or a change of finish\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukul-tinted\" id=\"which\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eChoosing\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Local or UKU Wi-Fi?\u003c\/h2\u003e\n    \u003cp class=\"hukul-lead\"\u003eUnderneath, both run the heater the same way. The difference is whether you want to reach the sauna from your phone, and which panels you can have.\u003c\/p\u003e\n    \u003cdiv class=\"hukul-tw hukul-tw--scroll\"\u003e\u003ctable class=\"hukul-cmp\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n        \u003cth class=\"hukul-me\"\u003e\n\u003cspan class=\"hukul-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hukul-cmp-m\"\u003eUKU Local\u003c\/span\u003e\u003cspan class=\"hukul-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n        \u003cth\u003e\n\u003cspan class=\"hukul-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hukul-cmp-m\"\u003eUKU Wi-Fi\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eControl from the wall panel\u003c\/td\u003e\n\u003ctd class=\"hukul-me\"\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eControl from the HUUM app\u003c\/td\u003e\n\u003ctd class=\"hukul-me\"\u003eOnly after a paid upgrade in the app\u003c\/td\u003e\n\u003ctd\u003eYes, unlimited user accounts\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eStart the sauna remotely\u003c\/td\u003e\n\u003ctd class=\"hukul-me\"\u003eOnly after a paid upgrade in the app\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNetwork needed\u003c\/td\u003e\n\u003ctd class=\"hukul-me\"\u003eNone\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePanels\u003c\/td\u003e\n\u003ctd class=\"hukul-me\"\u003eBlack, thermo-ash wood\u003c\/td\u003e\n\u003ctd\u003eBlack, thermo-ash wood, black glass, mirror, gold\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eIf you have no Wi-Fi signal where the sauna is, or you simply do not want an app, the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e is the sensible choice. If you want the room hot when you arrive, the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e is the one to buy. \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"install\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eInstallation\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM UKU Local goes\u003c\/h2\u003e\n    \u003cp class=\"hukul-lead\"\u003eA UKU is two parts: a main module that switches the heater, and the panel you touch. Both are wired in by a licensed electrician, at the same time as the heater.\u003c\/p\u003e\n    \u003cdiv class=\"hukul-tw\"\u003e\u003ctable class=\"hukul-spec\"\u003e\n      \u003ccaption\u003eFrom HUUM's UKU manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eMain module\u003c\/th\u003e\n\u003ctd\u003eIn a dry place outside the sauna, where the room stays below 122°F (50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBlack panel\u003c\/th\u003e\n\u003ctd\u003eOutside the sauna room, at eye level next to the door\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWood panel\u003c\/th\u003e\n\u003ctd\u003eOutside next to the door, or inside the sauna away from the heater, with the upper edge no more than 40 in (100 cm) from the floor and at least 20 in (50 cm) from an exhaust vent\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003ePanel cable\u003c\/th\u003e\n\u003ctd\u003eUp to 50 ft (15 m), not run alongside high current cables\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003ePower cables\u003c\/th\u003e\n\u003ctd\u003eMeeting UL 62 in the United States or CSA 49 in Canada, rated to at least 140°F (60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eLight and ventilation\u003c\/th\u003e\n\u003ctd\u003eThe module can switch a sauna light or a ventilation fan\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hukul-warn\"\u003e\u003cp\u003e\u003cb\u003eA public sauna needs a separate timer.\u003c\/b\u003e HUUM's manuals and the SGS listing both require an approved timer for public use. In a private sauna the UKU's own heating limit of 3 or 6 hours applies.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukul-tinted\" id=\"heaters\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eCompatibility\u003c\/p\u003e\n    \u003ch2\u003eWhich HUUM heaters the UKU Local runs\u003c\/h2\u003e\n    \u003cp class=\"hukul-lead\"\u003eAll of them. The only question is output: the main module carries up to 11 kW, and above that the extension box takes the extra load.\u003c\/p\u003e\n    \u003cdiv class=\"hukul-tw\"\u003e\u003ctable class=\"hukul-spec\"\u003e\n\u003ccaption\u003eWhat each HUUM heater needs\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput at 240 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUKU setup\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e4.5 to 9 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4, CLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4, STEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6 to 10.6 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6.5 to 10.5 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hukul-hl\"\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd\u003eMain module plus extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eIf you are buying a heater at the same time, start with the heater and pick the control on its page. The \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e has every model, and our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n    \u003ch3\u003eIs it listed for use in the United States?\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00061X covers the UKU Local Sauna Heater Control for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hukul-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-wood.jpg?width=1200\" alt=\"HUUM UKU Local sauna heater control, thermo-ash wood panel\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe thermo-ash wood panel, the other finish the Local is made in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Local specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hukul-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hukul-tw\"\u003e\u003ctable class=\"hukul-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's UKU manuals and the SGS listing\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003eUp to 11 kW on the main module; 12 to 18 kW with the extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature setting\u003c\/th\u003e\n\u003ctd\u003e104 to 230°F (40 to 110°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating time, private sauna\u003c\/th\u003e\n\u003ctd\u003e3 or 6 hours, set in the panel menu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApp\u003c\/th\u003e\n\u003ctd\u003eNone; panel only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V or 208 V, 60 Hz (SGS rating 240 V, 60 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00061X), as UKU Local\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years private use, 1 year commercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hukul-tw\"\u003e\u003ctable class=\"hukul-spec\"\u003e\n\u003ccaption\u003ePart and item numbers\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eBlack panel\u003c\/th\u003e\n\u003ctd\u003eH2004022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermo-ash wood panel\u003c\/th\u003e\n\u003ctd\u003eUKU-LOCAL-WOOD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003ch3\u003eIn the box\u003c\/h3\u003e\n    \u003cul class=\"hukul-chk\"\u003e\n\u003cli\u003e\u003cb\u003eControl panel\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eMain module\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoor sensor and temperature sensing\u003c\/b\u003e\u003cspan\u003eThe sensor set depends on the UKU generation supplied\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eConnection cables\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eInstallation and operation manual\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukul-tinted\" id=\"faq\"\u003e\n  \u003cdiv class=\"hukul-c\"\u003e\n    \u003cp class=\"hukul-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Local questions buyers ask\u003c\/h2\u003e\n    \u003cdiv class=\"hukul-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDoes the HUUM UKU Local work with every HUUM heater?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eYes. The main module runs any HUUM electric heater up to 11 kW, which is every DROP, CLIFF, STEEL, HIVE Mini and CORE. The HIVE 12, 15 and 18 also need the UKU extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan the HUUM UKU Local run a heater from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eHUUM's manuals describe the UKU with HUUM heaters, and the SGS listing for HUUM's heaters was evaluated with the UKU. We sell it for HUUM heaters and would not recommend it for another brand without that maker's approval.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat temperature range does the HUUM UKU Local allow?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003e104 to 230 degrees Fahrenheit (40 to 110 Celsius). On HUUM's newer UKU 4.2, fitting the optional bench sensor lowers the maximum to 194 degrees.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I add Wi-Fi to the HUUM UKU Local later?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eYes. HUUM's manuals say a UKU Local can be upgraded to Wi-Fi in the HUUM app for an additional fee, activated remotely with no technician visit. If you already know you want the app, the UKU Wi-Fi has it from the start.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhere is the HUUM UKU Local installed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eThe main module goes in a dry place outside the sauna. The black panel goes outside, at eye level next to the door. The wood panel may also go inside the sauna, away from the heater, with its upper edge no more than 40 inches from the floor.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the HUUM UKU Local UL listed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS, which is on OSHA's list of nationally recognized testing laboratories, lists the UKU Wi-Fi and UKU Local controllers for the United States and Canada under certificate SGSNA\/20\/SUW\/00061X, to UL 60335-1 and CAN\/CSA C22.2 No. 60335-1. The listing names the controller rather than each panel finish. For a public sauna it also requires an approved timer to UL and CSA 60730-1 and 60730-2-7, which the manual repeats. Inspectors differ on what they ask for, so check with yours before you buy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat warranty comes with the HUUM UKU Local?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukul-fb\"\u003e\u003cp\u003eHUUM covers its control units for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase. Sensors are excluded on every model. The full terms are in the warranty panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hukul-close\" id=\"order\"\u003e\n\u003cdiv class=\"hukul-c\"\u003e\n\u003cp class=\"hukul-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the heater before you order a control\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you are running and we will confirm the UKU Local Sauna Heater Control drives it. Wi-Fi and Local look alike on the wall and do different jobs, so the model name is the whole decision. Our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection lists what each heater takes.\u003c\/p\u003e\n\u003cdiv class=\"hukul-who\"\u003e\n\u003cimg class=\"hukul-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hukul-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hukul-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Black","offer_id":53514261004655,"sku":"H2004022","price":1062.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-ash wood","offer_id":53514261037423,"sku":"UKU-LOCAL-WOOD","price":1375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-black-panel.jpg?v=1790168826"},{"product_id":"huum-uku-wifi-sauna-heater-control","title":"HUUM UKU Wi-Fi Sauna Heater Control","description":"\u003cstyle\u003e.hukuw{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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0}.hukuw .hukuw-c .hukuw-btn:hover,.hukuw .hukuw-btn:hover{background:var(--ink);color:#fff}.hukuw .hukuw-close .hukuw-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hukuw .hukuw-close .hukuw-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hukuw .hukuw-pairup{grid-template-columns:1fr;gap:24px}.hukuw .hukuw-chk{grid-template-columns:1fr}.hukuw .hukuw-vidrow{flex-direction:column;align-items:stretch}.hukuw .hukuw-vid{--cap:380px;align-self:center}.hukuw .hukuw-vidrow{gap:24px}.hukuw .hukuw-c{padding:0 16px}.hukuw section{padding:40px 0}.hukuw section:first-of-type{padding-top:20px}.hukuw h2{font-size:23px}.hukuw p.hukuw-lead{font-size:17px}.hukuw .hukuw-stat3{grid-template-columns:1fr}.hukuw .hukuw-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hukuw .hukuw-stat3\u003ediv:last-child{border-bottom:0}.hukuw .hukuw-split{grid-template-columns:1fr;gap:24px}.hukuw .hukuw-buy{grid-template-columns:1fr}.hukuw .hukuw-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hukuw .hukuw-toc\u003esummary{display:none}.hukuw .hukuw-toc ol{display:grid !important}}@media screen and (max-width:560px){.hukuw .hukuw-ladder thead{position:absolute;left:-9999px}.hukuw .hukuw-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hukuw .hukuw-ladder tr.on{background:var(--hl)}.hukuw .hukuw-ladder td{display:block;border:0;padding:0}.hukuw .hukuw-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hukuw .hukuw-hl td,.hukuw .hukuw-hl th,.hukuw .hukuw-ladder tr.on td,.hukuw table.hukuw-cmp td.hukuw-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hukuw table.hukuw-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hukuw table th,.rte .hukuw table td{padding:11px var(--gut)}.hukuw .hukuw-ladder th:last-child,.hukuw .hukuw-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hukuw .hukuw-buy{align-items:start}.hukuw .hukuw-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hukuw table.hukuw-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hukuw table.hukuw-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hukuw .hukuw-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hukuw table.hukuw-spec th,.hukuw table.hukuw-spec td{display:block;width:auto}.hukuw table.hukuw-spec th{border-bottom:0;padding-bottom:0}}.hukuw .hukuw-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hukuw .hukuw-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hukuw .hukuw-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hukuw .hukuw-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hukuw .hukuw-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hukuw .hukuw-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hukuw .hukuw-close p.hukuw-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hukuw .hukuw-stat3 a{color:var(--bright)}.hukuw .hukuw-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hukuw .hukuw-cmp thead a .hukuw-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hukuw .hukuw-ladder.hukuw-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hukuw .hukuw-ladder.hukuw-out td:last-child::before{content:\"Output:\\00a0\"}}.hukuw .hukuw-tw + p,.hukuw .hukuw-tw + h3,.hukuw .hukuw-warn + p,.hukuw .hukuw-warn + h3,.hukuw .hukuw-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hukuw\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cdetails class=\"hukuw-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hukuw-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#which\"\u003eLocal or Wi-Fi\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#install\"\u003eInstallation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heaters\"\u003eHeaters it runs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eHUUM's matched control\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM UKU Wi-Fi runs any HUUM electric heater from the wall or from your phone\u003c\/h2\u003e\n    \u003cp class=\"hukuw-lead\"\u003eEvery HUUM electric heater needs a separate control, and the UKU is the one HUUM makes for them, and the controller SGS evaluated HUUM's DROP, CLIFF, STEEL and HIVE heaters with. The Wi-Fi version adds the HUUM app, so you can start the sauna on the way home and walk into a hot room.\u003c\/p\u003e\n    \u003cdiv class=\"hukuw-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukuw-lbl\"\u003eHeaters it runs\u003c\/p\u003e\n        \u003cp class=\"hukuw-big\"\u003eUp to 11 kW alone\u003c\/p\u003e\n        \u003cp\u003eThe main module runs every DROP, CLIFF, STEEL, HIVE Mini and CORE on its own. The HIVE 12, 15 and 18 also need the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukuw-lbl\"\u003eTemperature\u003c\/p\u003e\n        \u003cp class=\"hukuw-big\"\u003e104 to 230°F\u003c\/p\u003e\n        \u003cp\u003eSet on the panel or in the app. The sauna's heating time is capped at 3 or 6 hours in a private sauna, a limit you choose in the panel's menu.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hukuw-lbl\"\u003eFinishes\u003c\/p\u003e\n        \u003cp class=\"hukuw-big\"\u003eFive panels\u003c\/p\u003e\n        \u003cp\u003eBlack, thermo-ash wood, black glass, mirror or gold. The glass, mirror and gold panels are Wi-Fi only. The panel is also sold on its own, as a \u003ca href=\"\/products\/huum-uku-display-panel\"\u003espare or a change of finish\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukuw-tinted\" id=\"which\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eChoosing\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Wi-Fi or UKU Local?\u003c\/h2\u003e\n    \u003cp class=\"hukuw-lead\"\u003eUnderneath, both run the heater the same way. The difference is whether you want to reach the sauna from your phone, and which panels you can have.\u003c\/p\u003e\n    \u003cdiv class=\"hukuw-tw hukuw-tw--scroll\"\u003e\u003ctable class=\"hukuw-cmp\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n        \u003cth\u003e\n\u003cspan class=\"hukuw-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hukuw-cmp-m\"\u003eUKU Local\u003c\/span\u003e\n\u003c\/th\u003e\n        \u003cth class=\"hukuw-me\"\u003e\n\u003cspan class=\"hukuw-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hukuw-cmp-m\"\u003eUKU Wi-Fi\u003c\/span\u003e\u003cspan class=\"hukuw-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eControl from the wall panel\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd class=\"hukuw-me\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eControl from the HUUM app\u003c\/td\u003e\n\u003ctd\u003eOnly after a paid upgrade in the app\u003c\/td\u003e\n\u003ctd class=\"hukuw-me\"\u003eYes, unlimited user accounts\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eStart the sauna remotely\u003c\/td\u003e\n\u003ctd\u003eOnly after a paid upgrade in the app\u003c\/td\u003e\n\u003ctd class=\"hukuw-me\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNetwork needed\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd class=\"hukuw-me\"\u003e2.4 GHz Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePanels\u003c\/td\u003e\n\u003ctd\u003eBlack, thermo-ash wood\u003c\/td\u003e\n\u003ctd class=\"hukuw-me\"\u003eBlack, thermo-ash wood, black glass, mirror, gold\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eIf you have no Wi-Fi signal where the sauna is, or you simply do not want an app, the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e is the sensible choice. If you want the room hot when you arrive, the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e is the one to buy. It needs a 2.4 GHz network at the main module: it will not join a 5 GHz network, and if your 2.4 and 5 GHz networks share a name the manual says to give the 2.4 GHz one its own.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hukuw-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-wood-installed_cb4ffa39-27ab-4b5e-8706-30ec5e83def2.jpg?width=1200\" alt=\"HUUM UKU thermo-ash wood control panel mounted on a sauna wall\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe panel set into the wall, outside the hot room.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"install\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eInstallation\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM UKU Wi-Fi goes\u003c\/h2\u003e\n    \u003cp class=\"hukuw-lead\"\u003eA UKU is two parts: a main module that switches the heater, and the panel you touch. Both are wired in by a licensed electrician, at the same time as the heater.\u003c\/p\u003e\n    \u003cdiv class=\"hukuw-tw\"\u003e\u003ctable class=\"hukuw-spec\"\u003e\n      \u003ccaption\u003eFrom HUUM's UKU manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eMain module\u003c\/th\u003e\n\u003ctd\u003eIn a dry place outside the sauna, where the room stays below 122°F (50°C) and the Wi-Fi signal reaches\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBlack panel\u003c\/th\u003e\n\u003ctd\u003eOutside the sauna room, at eye level next to the door\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWood panel\u003c\/th\u003e\n\u003ctd\u003eOutside next to the door, or inside the sauna away from the heater, with the upper edge no more than 40 in (100 cm) from the floor and at least 20 in (50 cm) from an exhaust vent\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eGlass, mirror and gold panels\u003c\/th\u003e\n\u003ctd\u003eMay go inside the sauna, recessed into the wall, away from the heater, with the upper edge no more than 40 in (100 cm) from the floor. The optional \u003ca href=\"\/products\/huum-uku-surface-mounting-frame\"\u003esurface mounting frame\u003c\/a\u003e is for walls that cannot be recessed.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003ePanel cable\u003c\/th\u003e\n\u003ctd\u003eUp to 50 ft (15 m), not run alongside high current cables\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003ePower cables\u003c\/th\u003e\n\u003ctd\u003eMeeting UL 62 in the United States or CSA 49 in Canada, rated to at least 140°F (60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eLight and ventilation\u003c\/th\u003e\n\u003ctd\u003eThe module can switch a sauna light or a ventilation fan\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hukuw-warn\"\u003e\u003cp\u003e\u003cb\u003eA public sauna needs a separate timer.\u003c\/b\u003e HUUM's manuals and the SGS listing both require an approved timer for public use. In a private sauna the UKU's own heating limit of 3 or 6 hours applies.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukuw-tinted\" id=\"heaters\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eCompatibility\u003c\/p\u003e\n    \u003ch2\u003eWhich HUUM heaters the UKU Wi-Fi runs\u003c\/h2\u003e\n    \u003cp class=\"hukuw-lead\"\u003eAll of them. The only question is output: the main module carries up to 11 kW, and above that the extension box takes the extra load.\u003c\/p\u003e\n    \u003cdiv class=\"hukuw-tw\"\u003e\u003ctable class=\"hukuw-spec\"\u003e\n\u003ccaption\u003eWhat each HUUM heater needs\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput at 240 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUKU setup\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e4.5 to 9 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4, CLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4, STEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6 to 10.6 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6.5 to 10.5 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hukuw-hl\"\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd\u003eMain module plus extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eIf you are buying a heater at the same time, start with the heater and pick the control on its page. The \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e has every model, and our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n    \u003ch3\u003eIs it listed for use in the United States?\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00061X covers the UKU Wi-Fi Sauna Heater Control for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hukuw-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-app.jpg?width=1200\" alt=\"The HUUM app on a phone, used with the UKU Wi-Fi control\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Wi-Fi specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hukuw-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hukuw-tw\"\u003e\u003ctable class=\"hukuw-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's UKU manuals and the SGS listing\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003eUp to 11 kW on the main module; 12 to 18 kW with the extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature setting\u003c\/th\u003e\n\u003ctd\u003e104 to 230°F (40 to 110°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating time, private sauna\u003c\/th\u003e\n\u003ctd\u003e3 or 6 hours, set in the panel menu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApp\u003c\/th\u003e\n\u003ctd\u003eHUUM app, unlimited user accounts, 2.4 GHz Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V or 208 V, 60 Hz (SGS rating 240 V, 60 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00061X), as UKU WiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years private use, 1 year commercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hukuw-tw\"\u003e\u003ctable class=\"hukuw-spec\"\u003e\n\u003ccaption\u003ePart and item numbers\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eBlack panel\u003c\/th\u003e\n\u003ctd\u003eH2004012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermo-ash wood panel\u003c\/th\u003e\n\u003ctd\u003eUKU-WIFI-WOOD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlack glass panel\u003c\/th\u003e\n\u003ctd\u003eH2004032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMirror panel\u003c\/th\u003e\n\u003ctd\u003eUKU-WIFI-MIRROR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGold panel\u003c\/th\u003e\n\u003ctd\u003eUKU-WIFI-GOLD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003ch3\u003eIn the box\u003c\/h3\u003e\n    \u003cul class=\"hukuw-chk\"\u003e\n\u003cli\u003e\u003cb\u003eControl panel\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eMain module\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoor sensor and temperature sensing\u003c\/b\u003e\u003cspan\u003eThe sensor set depends on the UKU generation supplied\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eConnection cables\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eInstallation and operation manual\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukuw-tinted\" id=\"faq\"\u003e\n  \u003cdiv class=\"hukuw-c\"\u003e\n    \u003cp class=\"hukuw-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU Wi-Fi questions buyers ask\u003c\/h2\u003e\n    \u003cdiv class=\"hukuw-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDoes the HUUM UKU Wi-Fi work with every HUUM heater?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eYes. The main module runs any HUUM electric heater up to 11 kW, which is every DROP, CLIFF, STEEL, HIVE Mini and CORE. The HIVE 12, 15 and 18 also need the UKU extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan the HUUM UKU Wi-Fi run a heater from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eHUUM's manuals describe the UKU with HUUM heaters, and the SGS listing for HUUM's heaters was evaluated with the UKU. We sell it for HUUM heaters and would not recommend it for another brand without that maker's approval.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat temperature range does the HUUM UKU Wi-Fi allow?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003e104 to 230 degrees Fahrenheit (40 to 110 Celsius). On HUUM's newer UKU 4.2, fitting the optional bench sensor lowers the maximum to 194 degrees.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDoes the HUUM UKU Wi-Fi work on a 5 GHz network?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eNo. HUUM's manual says the main module supports only 2.4 GHz Wi-Fi, and that a 2.4 GHz network sharing a name with a 5 GHz or 6 GHz network should be renamed so the UKU can join it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many people can use the HUUM app on one sauna?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eAs many as you like. HUUM's manual says the number of user accounts linked to one sauna is not limited.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhere is the HUUM UKU Wi-Fi installed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eThe main module goes in a dry place outside the sauna, where the Wi-Fi signal reaches. The black panel goes outside, at eye level next to the door. The wood panel may also go inside the sauna, away from the heater, with its upper edge no more than 40 inches from the floor, and the glass, mirror and gold panels may be recessed into a wall inside the sauna on the same terms.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the HUUM UKU Wi-Fi UL listed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS, which is on OSHA's list of nationally recognized testing laboratories, lists the UKU Wi-Fi and UKU Local controllers for the United States and Canada under certificate SGSNA\/20\/SUW\/00061X, to UL 60335-1 and CAN\/CSA C22.2 No. 60335-1. The listing names the controller rather than each panel finish. For a public sauna it also requires an approved timer to UL and CSA 60730-1 and 60730-2-7, which the manual repeats. Inspectors differ on what they ask for, so check with yours before you buy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat warranty comes with the HUUM UKU Wi-Fi?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukuw-fb\"\u003e\u003cp\u003eHUUM covers its control units for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase. Sensors are excluded on every model. The full terms are in the warranty panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hukuw-close\" id=\"order\"\u003e\n\u003cdiv class=\"hukuw-c\"\u003e\n\u003cp class=\"hukuw-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the heater before you order a control\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you are running and we will confirm the UKU Wi-Fi Sauna Heater Control drives it. Wi-Fi and Local look alike on the wall and do different jobs, so the model name is the whole decision. Our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection lists what each heater takes.\u003c\/p\u003e\n\u003cdiv class=\"hukuw-who\"\u003e\n\u003cimg class=\"hukuw-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hukuw-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hukuw-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Black","offer_id":53514261070191,"sku":"H2004012","price":1324.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-ash wood","offer_id":53514261102959,"sku":"UKU-WIFI-WOOD","price":1637.0,"currency_code":"USD","in_stock":true},{"title":"Black glass","offer_id":53514261135727,"sku":"H2004032","price":1724.0,"currency_code":"USD","in_stock":true},{"title":"Mirror","offer_id":53514261168495,"sku":"UKU-WIFI-MIRROR","price":1987.0,"currency_code":"USD","in_stock":true},{"title":"Gold","offer_id":53514261201263,"sku":"UKU-WIFI-GOLD","price":1987.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-black-panel_da9cbea1-016c-436f-b06d-33b71161513a.jpg?v=1790168831"},{"product_id":"huum-uku-extension-box","title":"HUUM UKU Extension Box for HIVE 12, 15 and 18 Heaters","description":"\u003cstyle\u003e.hukux{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hukux *{box-sizing:border-box}.hukux .hukux-c img{margin:0 !important;border:0}.hukux .hukux-c{max-width:1000px;margin:0 auto;padding:0 20px}.hukux section{padding:52px 0}.hukux section:first-of-type{padding-top:26px}.hukux section.hukux-tinted{background:var(--tint)}.hukux section + section.hukux-tinted,.hukux section.hukux-tinted + section{border-top:1px solid var(--warm)}.hukux .hukux-c\u003e*:last-child{margin-bottom:0}.hukux section[id],.hukux 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h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hukux .hukux-cmp thead a .hukux-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hukux .hukux-ladder.hukux-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hukux .hukux-ladder.hukux-out td:last-child::before{content:\"Output:\\00a0\"}}.hukux .hukux-tw + p,.hukux .hukux-tw + h3,.hukux .hukux-warn + p,.hukux .hukux-warn + h3,.hukux .hukux-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hukux\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cdetails class=\"hukux-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hukux-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heaters\"\u003eWhich heaters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#install\"\u003eInstallation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eFor the largest HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM UKU extension box lets a UKU control run a 12 to 18 kW HIVE\u003c\/h2\u003e\n    \u003cp class=\"hukux-lead\"\u003eA UKU's main module carries up to 11 kW. The HIVE 12, 15 and 18 draw more than that, so they run through this box as well. Every other HUUM heater does without it.\u003c\/p\u003e\n    \u003cdiv class=\"hukux-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eNeeded for\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eHIVE 12, 15, 18\u003c\/p\u003e\n\u003cp\u003eThe only HUUM electric heaters above 11 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eWorks with\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eUKU Local or Wi-Fi\u003c\/p\u003e\n\u003cp\u003eIt adds capacity to either \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e or \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e; it is not a control by itself.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eWhere it goes\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eOutside the sauna\u003c\/p\u003e\n\u003cp\u003eOn the wall near the UKU main module.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukux-tinted\" id=\"heaters\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eCompatibility\u003c\/p\u003e\n    \u003ch2\u003eWhich HUUM heaters need the UKU extension box\u003c\/h2\u003e\n    \u003cdiv class=\"hukux-tw\"\u003e\u003ctable class=\"hukux-spec\"\u003e\n\u003ccaption\u003eWhat each HUUM heater needs\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput at 240 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUKU setup\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e4.5 to 9 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4, CLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4, STEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6 to 10.6 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6.5 to 10.5 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hukux-hl\"\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd\u003eMain module plus extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eDealer listings quote several different thresholds for this box. HUUM's current US manuals for both UKU generations say the main module can be used with heaters up to 11 kW, which leaves the HIVE 12, 15 and 18 as the only HUUM heaters that need it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"install\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eInstallation\u003c\/p\u003e\n    \u003ch2\u003eInstalling the HUUM UKU extension box\u003c\/h2\u003e\n    \u003cp class=\"hukux-lead\"\u003eIt is wired in by the electrician who connects the heater and the UKU, on the wall outside the steam room near the main module.\u003c\/p\u003e\n    \u003cp\u003eThe HIVE 12, 15 and 18 are fed by two circuits in HUUM's manual. HUUM's wiring sheet requires the main module and the extension box to be on separate circuit breakers. Your electrician works from HUUM's wiring diagram and sizes the circuits to the code your area has adopted.\u003c\/p\u003e\n    \u003cdiv class=\"hukux-warn\"\u003e\u003cp\u003e\u003cb\u003eNo separate listing.\u003c\/b\u003e We found no North American listing for the extension box. SGS's record for the HIVE 12, 15 and 18 describes those heaters \"with extension box\". Ask your inspector what they need to see.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eIn the box\u003c\/h3\u003e\n    \u003cul class=\"hukux-chk\"\u003e\n\u003cli\u003e\u003cb\u003eExtension box\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eInstallation and operation manual\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cdiv class=\"hukux-tw\"\u003e\u003ctable class=\"hukux-spec\"\u003e\n\u003ccaption\u003ePart number and warranty\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH2003012\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eAsk us to confirm the term with HUUM before you order\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hukux-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-extension-box.jpg?width=1200\" alt=\"HUUM UKU extension box for HIVE 12, 15 and 18 sauna heaters\" width=\"1259\" height=\"1259\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eA closer look at the part.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukux-tinted\" id=\"faq\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU extension box questions\u003c\/h2\u003e\n    \u003cdiv class=\"hukux-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDo I need the HUUM UKU extension box?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eOnly with a HIVE 12, 15 or 18. HUUM's current US manuals say the UKU main module can be used with heaters up to 11 kW, which covers every DROP, CLIFF, STEEL, HIVE Mini and CORE.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDoes the HUUM UKU extension box replace the UKU control?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eNo. It adds capacity to a UKU Local or UKU Wi-Fi. You still need the control itself.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhere does the HUUM UKU extension box go?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eOn the wall outside the steam room, near the UKU main module, wired in by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the HUUM UKU extension box UL listed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eNot on its own. No North American listing exists for the box by itself. SGS's record covers the HIVE 12, 15 and 18 described as being used with it, so ask your inspector what they need to see.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat warranty comes with the HUUM UKU extension box?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eHUUM's warranty gives control units 3 years in a private sauna and 1 year in a commercial one, but HUUM lists the extension box as an accessory to the UKU, and accessories are excluded from that warranty. Call us and we will confirm its cover with HUUM before you order.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hukux-close\" id=\"order\"\u003e\n\u003cdiv class=\"hukux-c\"\u003e\n\u003cp class=\"hukux-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the heater before you order a control\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you are running and we will confirm the UKU Extension Box for HIVE 12, 15 and 18 Heaters drives it. Wi-Fi and Local look alike on the wall and do different jobs, so the model name is the whole decision. Our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection lists what each heater takes.\u003c\/p\u003e\n\u003cdiv class=\"hukux-who\"\u003e\n\u003cimg class=\"hukux-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hukux-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hukux-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514261266799,"sku":"H2003012","price":773.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-extension-box.jpg?v=1790066763"},{"product_id":"huum-sauna-stones-3-5-cm","title":"HUUM Sauna Stones, 1.2 to 2 in (3 to 5 cm), 33 lb Box","description":"\u003cstyle\u003e.hst12{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hst12 *{box-sizing:border-box}.hst12 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th{background:var(--fill);color:var(--ink);font-size:11px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--edge)}.hst12 table.cmp thead th.me{background:var(--dark);color:#fff}.hst12 table.cmp td.me{background:var(--hl);font-weight:600;color:var(--ink)}.hst12 table.cmp td:first-child{color:var(--sub)}.hst12 .hst12-ladder td:last-child{text-align:right;white-space:nowrap;color:var(--sub)}.hst12 .hst12-ladder .kw{font-weight:700;color:var(--ink);font-size:17px;white-space:nowrap}.hst12 .hst12-ladder tr.on td{background:var(--hl)}.hst12 .hst12-ladder .tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;background:var(--accent);color:#fff;padding:3px 8px;border-radius:var(--r-xs);margin-left:9px;vertical-align:2px}.hst12 .hst12-warn{background:#fff;border:1px solid var(--warm);border-left:3px solid var(--accent);border-radius:0 var(--r-lg) var(--r-lg) 0;padding:18px var(--gut) 18px calc(var(--gut) - 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cite{display:block;margin-top:8px}.hst12 figcaption{font-size:13.5px;color:var(--sub);margin-top:8px;line-height:1.5}.hst12 .hst12-more{margin:24px 0 0}.hst12 .hst12-more\u003esummary{font-size:15.5px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;padding:14px var(--gut);background:var(--fill);border:1px solid var(--warm);border-radius:var(--r-lg);position:relative}.hst12 .hst12-more\u003esummary::-webkit-details-marker{display:none}.hst12 .hst12-more\u003esummary::after{content:\"\";position:absolute;right:var(--gut);top:20px;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}.hst12 .hst12-more[open]\u003esummary::after{transform:rotate(225deg)}.hst12 .hst12-rl{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 8px !important}@media screen and (max-width:840px){}.hst12 .hst12-faq{border-top:1px solid var(--line);margin-top:16px}.hst12 .hst12-faq details{border-bottom:1px solid var(--line)}.hst12 .hst12-faq summary{cursor:pointer;padding:17px 36px 17px 0;position:relative;list-style:none;font-size:17px;font-weight:600;color:var(--ink)}.hst12 .hst12-faq summary::-webkit-details-marker{display:none}.hst12 .hst12-faq summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hst12 .hst12-faq details[open] summary::after{transform:rotate(225deg)}.hst12 .hst12-faq .hst12-fb{padding:0 0 18px;max-width:68ch}.hst12 .hst12-faq .hst12-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hst12 .hst12-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hst12 .hst12-close h2{color:#fff;max-width:22ch}.hst12 .hst12-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hst12 .hst12-close .hst12-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hst12 .hst12-close .hst12-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hst12 .hst12-close .hst12-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hst12 .hst12-close .hst12-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hst12 .hst12-close .hst12-who span{display:block}.hst12 .hst12-c .hst12-btn,.hst12 .hst12-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hst12 .hst12-c .hst12-btn:hover,.hst12 .hst12-btn:hover{background:var(--ink);color:#fff}.hst12 .hst12-close .hst12-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hst12 .hst12-close .hst12-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hst12 .hst12-pairup{grid-template-columns:1fr;gap:24px}.hst12 .hst12-chk{grid-template-columns:1fr}.hst12 .hst12-vidrow{flex-direction:column;align-items:stretch}.hst12 .hst12-vid{--cap:380px;align-self:center}.hst12 .hst12-vidrow{gap:24px}.hst12 .hst12-c{padding:0 16px}.hst12 section{padding:40px 0}.hst12 section:first-of-type{padding-top:20px}.hst12 h2{font-size:23px}.hst12 p.hst12-lead{font-size:17px}.hst12 .hst12-stat3{grid-template-columns:1fr}.hst12 .hst12-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hst12 .hst12-stat3\u003ediv:last-child{border-bottom:0}.hst12 .hst12-split{grid-template-columns:1fr;gap:24px}.hst12 .hst12-buy{grid-template-columns:1fr}.hst12 .hst12-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hst12 .hst12-toc\u003esummary{display:none}.hst12 .hst12-toc ol{display:grid !important}}@media screen and (max-width:560px){.hst12 .hst12-ladder thead{position:absolute;left:-9999px}.hst12 .hst12-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hst12 .hst12-ladder tr.on{background:var(--hl)}.hst12 .hst12-ladder td{display:block;border:0;padding:0}.hst12 .hst12-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hst12 .hst12-hl td,.hst12 .hst12-hl th,.hst12 .hst12-ladder tr.on td,.hst12 table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hst12 table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hst12 table th,.rte .hst12 table td{padding:11px var(--gut)}.hst12 .hst12-ladder th:last-child,.hst12 .hst12-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hst12 .hst12-buy{align-items:start}.hst12 .hst12-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hst12 table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hst12 table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hst12 .hst12-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hst12 table.hst12-spec th,.hst12 table.hst12-spec td{display:block;width:auto}.hst12 table.hst12-spec th{border-bottom:0;padding-bottom:0}}.hst12 .hst12-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hst12 .hst12-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hst12 .hst12-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hst12 .hst12-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hst12 .hst12-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hst12 .hst12-close p.hst12-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hst12 .hst12-stat3 a{color:var(--bright)}.hst12 .hst12-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hst12 .hst12-cmp thead a .hst12-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hst12 .hst12-ladder.hst12-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hst12 .hst12-ladder.hst12-out td:last-child::before{content:\"Output:\\00a0\"}}.hst12 .hst12-tw + p,.hst12 .hst12-tw + h3,.hst12 .hst12-warn + p,.hst12 .hst12-warn + h3,.hst12 .hst12-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hst12\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cdetails class=\"hst12-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hst12-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#boxes\"\u003eHow many boxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laying\"\u003eLaying it\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hst12-eyebrow\"\u003eFor HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eHUUM olivine diabase sauna stones, 1.2 to 2 in (3 to 5 cm), in 33 pound boxes\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThis is the stone size HUUM specifies for the CLIFF Mini, CLIFF, STEEL Mini and STEEL. Every HUUM heater needs its stone bought separately, and the heater, not the room, sets how many boxes it takes.\u003c\/p\u003e\n    \u003cdiv class=\"hst12-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003eStone size\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e1.2 to 2 in\u003c\/p\u003e\n\u003cp\u003e3 to 5 cm across, rounded olivine diabase, the size HUUM gives for these heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003ePer box\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e33 lb\u003c\/p\u003e\n\u003cp\u003eHUUM packs its stone in 15 kg boxes. Order whole boxes to the number your heater takes.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003eWrong size?\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e2 to 4 in\u003c\/p\u003e\n\u003cp\u003eThe DROP, HIVE, HIVE Mini and CORE take the other grade: \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM stones, 2 to 4 in (5 to 10 cm)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12-tinted\" id=\"boxes\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cp class=\"hst12-eyebrow\"\u003eQuantity\u003c\/p\u003e\n    \u003ch2\u003eHow many boxes of HUUM 3 to 5 cm stone your heater takes\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThe quantity comes from HUUM's own figures for each heater. Order the full amount: a heater may not be switched on until it is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hst12-tw\"\u003e\u003ctable class=\"hst12-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's current US manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eHolds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBoxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e165 lb (75 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e330 lb (150 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hst12-warn\"\u003e\u003cp\u003e\u003cb\u003eToo little stone is a fire hazard, not a saving.\u003c\/b\u003e HUUM's manuals warn that a sparsely filled stone container causes a fire hazard, and require that no element shows through the stone.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"laying\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cp class=\"hst12-eyebrow\"\u003eLaying it\u003c\/p\u003e\n    \u003ch2\u003eHow to lay HUUM sauna stones\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThe way the stone goes in matters as much as the amount. It is what carries the heat into the steam, and packed badly it starves the elements of air.\u003c\/p\u003e\n    \u003cul class=\"hst12-chk\"\u003e\n\u003cli\u003e\n\u003cb\u003eWash it first\u003c\/b\u003e\u003cspan\u003eRinse the dust off under running water before it goes into the heater.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoose inside\u003c\/b\u003e\u003cspan\u003eStack the stone sparsely between the elements. HUUM's CLIFF and STEEL manuals warn that stone packed too close makes the elements overheat and slows the heating.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight outside\u003c\/b\u003e\u003cspan\u003eStack the stone on the outer face close together, so no element is visible.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGet help if unsure\u003c\/b\u003e\u003cspan\u003eHUUM's CLIFF and STEEL manuals recommend having a specialist lay the stone.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003eStone crumbles as it heats and cools, and the dust eventually blocks the airflow, so check it regularly and replace cracked pieces. HUUM's CLIFF and STEEL manuals allow ceramic stones only at your own risk, and HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\n    \u003cp\u003eChoosing a heater first? Every model is in our \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e, and the \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hst12-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-in-cliff-heater_ee4d1a87-c104-44fc-b92d-c6a66d98e60d.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones loaded in the basket of a HUUM CLIFF heater\" width=\"1668\" height=\"2000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLaid in the heater, loosely enough for air to move between the stones.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12-tinted\" id=\"faq\"\u003e\u003cdiv class=\"hst12-c\"\u003e\n\u003cp class=\"hst12-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM 3 to 5 cm sauna stone questions\u003c\/h2\u003e\n\u003cdiv class=\"hst12-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhich HUUM heaters take 3 to 5 cm stones?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eThe CLIFF Mini, CLIFF, STEEL Mini and STEEL. The DROP, HIVE, HIVE Mini and CORE take 2 to 4 in (5 to 10 cm) stone instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many boxes of HUUM stone do I need?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eIt depends on the heater: CLIFF Mini 4 takes 4 boxes; CLIFF 6, 9, 11 takes 5 boxes; STEEL Mini 4 takes 4 boxes; STEEL 6, 9, 11 takes 10 boxes. Order the full number, because the heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat kind of stone is it?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eRounded olivine diabase, supplied by HUUM for its heaters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I use stones from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eHUUM's CLIFF and STEEL manuals call for stone 1.2 to 1.9 in (3 to 5 cm) across and allow ceramic stones only at your own risk. HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow often should sauna stones be replaced?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eCheck it regularly and replace cracked pieces, because crumbling stone blocks the airflow the elements need. HUUM's DROP manual goes further and replaces the whole load after 400 hours of use, a sensible guide for any heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eAre sauna stones returnable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eNot once a box is opened, since stone is sold by weight. Unopened boxes follow the return terms in the returns panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\n\u003cdiv class=\"hst12-close\" id=\"order\"\u003e\n\u003cdiv class=\"hst12-c\"\u003e\n\u003cp class=\"hst12-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure which grade your heater takes?\u003c\/h2\u003e\n\u003cp\u003eTell us the heater and we will say which stone grade it is built for and how many boxes it holds. Grade matters: the wrong size packs badly, chokes the airflow and shortens the life of the elements. Every heater we carry lists its own figure on its page in the \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hst12-who\"\u003e\n\u003cimg class=\"hst12-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hst12-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hst12-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514262151535,"sku":"H3099011","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine.jpg?v=1790066906"},{"product_id":"huum-sauna-stones-5-10-cm","title":"HUUM Sauna Stones, 2 to 4 in (5 to 10 cm), 33 lb Box","description":"\u003cstyle\u003e.hst24{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hst24 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0}.hst24 table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hst24 table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hst24 .hst24-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hst24 table.hst24-spec th,.hst24 table.hst24-spec td{display:block;width:auto}.hst24 table.hst24-spec th{border-bottom:0;padding-bottom:0}}.hst24 .hst24-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hst24 .hst24-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hst24 .hst24-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hst24 .hst24-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hst24 .hst24-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hst24 .hst24-close p.hst24-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hst24 .hst24-stat3 a{color:var(--bright)}.hst24 .hst24-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hst24 .hst24-cmp thead a .hst24-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hst24 .hst24-ladder.hst24-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hst24 .hst24-ladder.hst24-out td:last-child::before{content:\"Output:\\00a0\"}}.hst24 .hst24-tw + p,.hst24 .hst24-tw + h3,.hst24 .hst24-warn + p,.hst24 .hst24-warn + h3,.hst24 .hst24-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hst24\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hst24-c\"\u003e\n    \u003cdetails class=\"hst24-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hst24-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#boxes\"\u003eHow many boxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laying\"\u003eLaying it\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hst24-eyebrow\"\u003eFor HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eHUUM olivine diabase sauna stones, 2 to 4 in (5 to 10 cm), in 33 pound boxes\u003c\/h2\u003e\n    \u003cp class=\"hst24-lead\"\u003eThis is the stone size HUUM specifies for the DROP, HIVE Mini, HIVE and CORE. Every HUUM heater needs its stone bought separately, and the heater, not the room, sets how many boxes it takes.\u003c\/p\u003e\n    \u003cdiv class=\"hst24-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24-lbl\"\u003eStone size\u003c\/p\u003e\n\u003cp class=\"hst24-big\"\u003e2 to 4 in\u003c\/p\u003e\n\u003cp\u003e5 to 10 cm across, rounded olivine diabase, the size HUUM gives for these heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24-lbl\"\u003ePer box\u003c\/p\u003e\n\u003cp class=\"hst24-big\"\u003e33 lb\u003c\/p\u003e\n\u003cp\u003eHUUM packs its stone in 15 kg boxes. Order whole boxes to the number your heater takes.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24-lbl\"\u003eWrong size?\u003c\/p\u003e\n\u003cp class=\"hst24-big\"\u003e1.2 to 2 in\u003c\/p\u003e\n\u003cp\u003eThe CLIFF, CLIFF Mini, STEEL and STEEL Mini take the other grade: \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM stones, 1.2 to 2 in (3 to 5 cm)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst24-tinted\" id=\"boxes\"\u003e\n  \u003cdiv class=\"hst24-c\"\u003e\n    \u003cp class=\"hst24-eyebrow\"\u003eQuantity\u003c\/p\u003e\n    \u003ch2\u003eHow many boxes of HUUM 5 to 10 cm stone your heater takes\u003c\/h2\u003e\n    \u003cp class=\"hst24-lead\"\u003eThe quantity comes from HUUM's own figures for each heater. Order the full amount: a heater may not be switched on until it is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hst24-tw\"\u003e\u003ctable class=\"hst24-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's current US manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eHolds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBoxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e121.3 lb (55 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e88.2 lb (40 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hst24-warn\"\u003e\u003cp\u003e\u003cb\u003eToo little stone is a fire hazard, not a saving.\u003c\/b\u003e HUUM's manuals warn that a sparsely filled stone container causes a fire hazard, and require that no element shows through the stone.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"laying\"\u003e\n  \u003cdiv class=\"hst24-c\"\u003e\n    \u003cp class=\"hst24-eyebrow\"\u003eLaying it\u003c\/p\u003e\n    \u003ch2\u003eHow to lay HUUM sauna stones\u003c\/h2\u003e\n    \u003cp class=\"hst24-lead\"\u003eThe way the stone goes in matters as much as the amount. It is what carries the heat into the steam, and packed badly it starves the elements of air.\u003c\/p\u003e\n    \u003cul class=\"hst24-chk\"\u003e\n\u003cli\u003e\n\u003cb\u003eWash it first\u003c\/b\u003e\u003cspan\u003eRinse the dust off under running water before it goes into the heater.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLay it, do not pour it\u003c\/b\u003e\u003cspan\u003ePiece by piece, biggest stones at the bottom and the sides, smaller ones wedging them in place, as HUUM's DROP and HIVE manuals describe.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCover the elements\u003c\/b\u003e\u003cspan\u003ePack the outer face tightly enough that no element shows through the stone.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeave room for air\u003c\/b\u003e\u003cspan\u003eTight outside, with air paths inside. Stone jammed too hard shortens the life of the elements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003eStone crumbles as it heats and cools, and the dust eventually blocks the airflow. HUUM's HIVE manual asks for a yearly check that removes broken pieces, and the DROP manual replaces the whole load after 400 hours of use. HUUM advises against decorative stone, which does not store enough heat and breaks easily, and its warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\n    \u003cp\u003eChoosing a heater first? Every model is in our \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e, and the \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hst24-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-in-drop-heater.jpg?width=1200\" alt=\"HUUM sauna stones in the open cage of a HUUM heater\" width=\"1120\" height=\"1120\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLaid in the heater, loosely enough for air to move between the stones.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst24-tinted\" id=\"faq\"\u003e\u003cdiv class=\"hst24-c\"\u003e\n\u003cp class=\"hst24-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM 5 to 10 cm sauna stone questions\u003c\/h2\u003e\n\u003cdiv class=\"hst24-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhich HUUM heaters take 5 to 10 cm stones?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eThe DROP, HIVE Mini, HIVE and CORE. The CLIFF, CLIFF Mini, STEEL and STEEL Mini take 1.2 to 2 in (3 to 5 cm) stone instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many boxes of HUUM stone do I need?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eIt depends on the heater: DROP 4, 6, 7, 9 takes 4 boxes; HIVE Mini 6, 9, 11 takes 10 boxes; HIVE 12, 15, 18 takes 16 boxes; CORE 6, 9, 11 takes 3 boxes. Order the full number, because the heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat kind of stone is it?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eRounded olivine diabase, supplied by HUUM for its heaters. HUUM's HIVE manual recommends round stones because they let the water run down to the lower layers.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I use stones from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eNatural stone sold for sauna heaters, in the size HUUM specifies for your model, is suitable according to HUUM's DROP and HIVE manuals. Decorative stone is not, and HUUM's warranty excludes damage caused by unsuitable stone. HUUM's CORE manual allows ceramic stones only at your own risk.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow often should sauna stones be replaced?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eHUUM's HIVE manual asks for a yearly check that removes broken pieces, and the DROP manual replaces the whole load after 400 hours of use. Crumbling stone blocks the airflow the elements need.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eAre sauna stones returnable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24-fb\"\u003e\u003cp\u003eNot once a box is opened, since stone is sold by weight. Unopened boxes follow the return terms in the returns panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\n\u003cdiv class=\"hst24-close\" id=\"order\"\u003e\n\u003cdiv class=\"hst24-c\"\u003e\n\u003cp class=\"hst24-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure which grade your heater takes?\u003c\/h2\u003e\n\u003cp\u003eTell us the heater and we will say which stone grade it is built for and how many boxes it holds. Grade matters: the wrong size packs badly, chokes the airflow and shortens the life of the elements. Every heater we carry lists its own figure on its page in the \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hst24-who\"\u003e\n\u003cimg class=\"hst24-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hst24-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hst24-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514262249839,"sku":"H3099021","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_c7bcf815-e5da-4f85-a951-5f9e53802aac.jpg?v=1790066919"},{"product_id":"huum-cliff-safety-rail","title":"HUUM Safety Rail | CLIFF 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hcrail{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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(max-width:480px){.hcrail table.hcrail-spec th,.hcrail table.hcrail-spec td{display:block;width:auto}.hcrail table.hcrail-spec th{border-bottom:0;padding-bottom:0}}.hcrail .hcrail-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hcrail .hcrail-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hcrail .hcrail-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hcrail .hcrail-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hcrail .hcrail-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcrail .hcrail-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcrail .hcrail-close p.hcrail-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcrail .hcrail-stat3 a{color:var(--bright)}.hcrail .hcrail-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcrail .hcrail-cmp thead a .hcrail-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcrail .hcrail-ladder.hcrail-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcrail .hcrail-ladder.hcrail-out td:last-child::before{content:\"Output:\\00a0\"}}.hcrail .hcrail-tw + p,.hcrail .hcrail-tw + h3,.hcrail .hcrail-warn + p,.hcrail .hcrail-warn + h3,.hcrail .hcrail-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcrail\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hcrail-c\"\u003e\n\u003cp class=\"hcrail-eyebrow\"\u003eSafety accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail\u003c\/h2\u003e\n\u003cp class=\"hcrail-lead\"\u003eA wooden frame around the top of the CLIFF, to help prevent accidental contact with the hot heater and stones. The profiles are wood and the fasteners are stainless steel. Its supports rest on the heater's upper rib and short brackets clamp around the ribs, so it needs no fixing to the wall.\u003c\/p\u003e\n\u003cp\u003eHUUM asks for all wooden parts to be treated with a heat resistant, non toxic wood preservative, reapplied at least once a year, to keep the wood from warping, cracking or decaying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e CLIFF 6, CLIFF 9 and CLIFF 11. Not made for the CLIFF Mini 4, which hangs on the wall and has a narrower body. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-safety-rail.jpg?width=1200\" alt=\"HUUM safety rail for CLIFF heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hcrail-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrail-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hcrail-big\"\u003eHUUM CLIFF 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrail-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hcrail-big\"\u003eWood, stainless steel fasteners\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrail-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hcrail-big\"\u003eClamps to the heater\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcrail-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hcrail-c\"\u003e\n\u003cp class=\"hcrail-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this safety rail fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWooden profiles\u003c\/li\u003e\n\u003cli\u003e4 corner plates\u003c\/li\u003e\n\u003cli\u003e8 long supports and 8 short brackets\u003c\/li\u003e\n\u003cli\u003eBolts, nuts and screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-safety-rail-detail.jpg?width=1200\" alt=\"Wooden profile and stainless bracket of the HUUM CLIFF safety rail\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hcrail-c\"\u003e\n\u003cp class=\"hcrail-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail specifications\u003c\/h2\u003e\n\u003cp class=\"hcrail-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hcrail-tw\"\u003e\u003ctable class=\"hcrail-spec\"\u003e\n\u003ccaption\u003eHUUM Safety Rail reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3004012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM CLIFF 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWood, stainless steel fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eClamps to the heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcrail-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hcrail-c\"\u003e\n\u003cp class=\"hcrail-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hcrail-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eCLIFF 6, CLIFF 9 and CLIFF 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA wooden frame around the top of the CLIFF, to help prevent accidental contact with the hot heater and stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does it attach?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eIn the set Wooden profiles 4 corner plates 8 long supports and 8 short brackets Bolts, nuts and screws Part number H3004012 Fits HUUM CLIFF 6, 9, 11 Material Wood, stainless steel fasteners Mounting Clamps to the heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the wood need any care?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eYes, annually. The treatment HUUM specifies is a heat resistant, non toxic wood preservative, and the reason is that untreated timber in a sauna warps, cracks and in time decays.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the CLIFF Mini 4, which hangs on the wall and has a narrower body.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe profiles are wood and the fasteners are stainless steel.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWooden profiles, 4 corner plates, 8 long supports and 8 short brackets, Bolts, nuts and screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcrail-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcrail-c\"\u003e\n\u003cp class=\"hcrail-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this safety rail fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hcrail-who\"\u003e\n\u003cimg class=\"hcrail-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcrail-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcrail-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266247535,"sku":"H3004012","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-safety-rail.jpg?v=1790068044"},{"product_id":"huum-steel-safety-rail","title":"HUUM Safety Rail | STEEL 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hsrail{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsrail *{box-sizing:border-box}.hsrail 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.hsrail-stat3\u003ediv:last-child{border-bottom:0}.hsrail .hsrail-split{grid-template-columns:1fr;gap:24px}.hsrail .hsrail-buy{grid-template-columns:1fr}.hsrail .hsrail-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hsrail .hsrail-toc\u003esummary{display:none}.hsrail .hsrail-toc ol{display:grid !important}}@media screen and (max-width:560px){.hsrail .hsrail-ladder thead{position:absolute;left:-9999px}.hsrail .hsrail-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hsrail .hsrail-ladder tr.on{background:var(--hl)}.hsrail .hsrail-ladder td{display:block;border:0;padding:0}.hsrail .hsrail-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hsrail .hsrail-hl td,.hsrail .hsrail-hl th,.hsrail .hsrail-ladder tr.on td,.hsrail table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hsrail table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hsrail table th,.rte .hsrail table td{padding:11px var(--gut)}.hsrail .hsrail-ladder th:last-child,.hsrail .hsrail-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hsrail .hsrail-buy{align-items:start}.hsrail .hsrail-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hsrail table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hsrail table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hsrail .hsrail-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hsrail table.hsrail-spec th,.hsrail table.hsrail-spec td{display:block;width:auto}.hsrail table.hsrail-spec th{border-bottom:0;padding-bottom:0}}.hsrail .hsrail-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hsrail .hsrail-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hsrail .hsrail-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hsrail .hsrail-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hsrail .hsrail-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hsrail .hsrail-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hsrail .hsrail-close p.hsrail-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hsrail .hsrail-stat3 a{color:var(--bright)}.hsrail .hsrail-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hsrail .hsrail-cmp thead a .hsrail-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsrail .hsrail-ladder.hsrail-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsrail .hsrail-ladder.hsrail-out td:last-child::before{content:\"Output:\\00a0\"}}.hsrail .hsrail-tw + p,.hsrail .hsrail-tw + h3,.hsrail .hsrail-warn + p,.hsrail .hsrail-warn + h3,.hsrail .hsrail-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsrail\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hsrail-c\"\u003e\n\u003cp class=\"hsrail-eyebrow\"\u003eSafety accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail\u003c\/h2\u003e\n\u003cp class=\"hsrail-lead\"\u003eA wooden frame around the top of the STEEL, to help prevent accidental contact with the hot heater and stones. The profiles are wood and the fasteners are stainless steel. The ends of the supports are bent around the heater body with pliers, so it needs no fixing to the wall.\u003c\/p\u003e\n\u003cp\u003eFitting the STEEL reflector as well? HUUM's order is reflector first, then the rail's wooden profiles.\u003c\/p\u003e\n\u003cp\u003eHUUM asks for all wooden parts to be treated with a heat resistant, non toxic wood preservative, reapplied at least once a year, to keep the wood from warping, cracking or decaying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e STEEL 6, STEEL 9 and STEEL 11. Not made for the STEEL Mini 4, which hangs on the wall and has a narrower body. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hsrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-safety-rail.jpg?width=1200\" alt=\"HUUM safety rail for STEEL heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hsrail-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrail-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hsrail-big\"\u003eHUUM STEEL 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrail-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hsrail-big\"\u003eWood, stainless steel fasteners\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrail-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hsrail-big\"\u003eSupports bend around the heater body\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsrail-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hsrail-c\"\u003e\n\u003cp class=\"hsrail-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this safety rail fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWooden profiles\u003c\/li\u003e\n\u003cli\u003e4 corner plates\u003c\/li\u003e\n\u003cli\u003eSupports\u003c\/li\u003e\n\u003cli\u003eScrews\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hsrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-safety-rail-in-sauna.jpg?width=1200\" alt=\"HUUM STEEL heater with its safety rail in a sauna\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hsrail-c\"\u003e\n\u003cp class=\"hsrail-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail specifications\u003c\/h2\u003e\n\u003cp class=\"hsrail-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hsrail-tw\"\u003e\u003ctable class=\"hsrail-spec\"\u003e\n\u003ccaption\u003eHUUM Safety Rail reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3006012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM STEEL 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWood, stainless steel fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eSupports bend around the heater body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsrail-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hsrail-c\"\u003e\n\u003cp class=\"hsrail-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hsrail-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eSTEEL 6, STEEL 9 and STEEL 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA wooden frame around the top of the STEEL, to help prevent accidental contact with the hot heater and stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the wood need any care?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eYes, annually. The treatment HUUM specifies is a heat resistant, non toxic wood preservative, and the reason is that untreated timber in a sauna warps, cracks and in time decays.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the STEEL Mini 4, which hangs on the wall and has a narrower body.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe profiles are wood and the fasteners are stainless steel.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWooden profiles, 4 corner plates, Supports, Screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3006012.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsrail-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsrail-c\"\u003e\n\u003cp class=\"hsrail-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this safety rail fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hsrail-who\"\u003e\n\u003cimg class=\"hsrail-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsrail-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsrail-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266313071,"sku":"H3006012","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-safety-rail.jpg?v=1790068055"},{"product_id":"huum-drop-safety-rail","title":"HUUM Safety Rail | DROP 4, 6, 7 and 9 Sauna Heaters","description":"\u003cstyle\u003e.hdrail{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrail *{box-sizing:border-box}.hdrail 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.hdrail-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrail .hdrail-ladder.hdrail-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrail .hdrail-ladder.hdrail-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrail .hdrail-tw + p,.hdrail .hdrail-tw + h3,.hdrail .hdrail-warn + p,.hdrail .hdrail-warn + h3,.hdrail .hdrail-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdrail\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdrail-c\"\u003e\n\u003cp class=\"hdrail-eyebrow\"\u003eSafety accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail\u003c\/h2\u003e\n\u003cp class=\"hdrail-lead\"\u003eAn arc of wood that wraps the front of the wall mounted DROP, to help prevent accidental contact with the hot cage and stones. HUUM's DROP manual recommends a safety railing around the heater and names this one as its accessory for it. The fasteners are stainless steel.\u003c\/p\u003e\n\u003cp\u003eIt clamps to the heater in the third gap from the top and is screwed to the wall with 4 included general purpose screws. HUUM advises asking a specialist whether they suit your wall. The rail is wood, so the heater's minimum safety distances to anything flammable still apply exactly as printed in the manual.\u003c\/p\u003e\n\u003cp\u003eHUUM asks for all wooden parts to be treated with a heat resistant, non toxic wood preservative, reapplied at least once a year, to keep the wood from warping, cracking or decaying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e DROP 4, DROP 6, DROP 7 and DROP 9, which share one body. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-safety-rail.jpg?width=1200\" alt=\"HUUM safety rail for DROP heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hdrail-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrail-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hdrail-big\"\u003eHUUM DROP 4, 6, 7, 9\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrail-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hdrail-big\"\u003eWood, stainless steel fasteners\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrail-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hdrail-big\"\u003eClamps to the heater, screws to the wa\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrail-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hdrail-c\"\u003e\n\u003cp class=\"hdrail-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this safety rail fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWooden arches\u003c\/li\u003e\n\u003cli\u003eHeater support and 2 wall supports\u003c\/li\u003e\n\u003cli\u003eHex key\u003c\/li\u003e\n\u003cli\u003eBolt, nut and screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-safety-rail-in-sauna.jpg?width=1200\" alt=\"Wall mounted HUUM DROP heater with its safety rail\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hdrail-c\"\u003e\n\u003cp class=\"hdrail-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail specifications\u003c\/h2\u003e\n\u003cp class=\"hdrail-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hdrail-tw\"\u003e\u003ctable class=\"hdrail-spec\"\u003e\n\u003ccaption\u003eHUUM Safety Rail reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3001062\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 4, 6, 7, 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWood, stainless steel fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eClamps to the heater, screws to the wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrail-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdrail-c\"\u003e\n\u003cp class=\"hdrail-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hdrail-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eDROP 4, DROP 6, DROP 7 and DROP 9, which share one body.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eAn arc of wood that wraps the front of the wall mounted DROP, to help prevent accidental contact with the hot cage and stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe rail is wood, so the heater's minimum safety distances to anything flammable still apply exactly as printed in the manual.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does it attach?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eIt clamps to the heater in the third gap from the top and is screwed to the wall with 4 included general purpose screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the wood need any care?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eYes, annually. The treatment HUUM specifies is a heat resistant, non toxic wood preservative, and the reason is that untreated timber in a sauna warps, cracks and in time decays.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe fasteners are stainless steel.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWooden arches, Heater support and 2 wall supports, Hex key, Bolt, nut and screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrail-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrail-c\"\u003e\n\u003cp class=\"hdrail-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this safety rail fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hdrail-who\"\u003e\n\u003cimg class=\"hdrail-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrail-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrail-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266378607,"sku":"H3001062","price":291.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-safety-rail.jpg?v=1790068067"},{"product_id":"huum-hive-safety-rail","title":"HUUM Safety Rail | HIVE 12, 15 and 18 Sauna Heaters","description":"\u003cstyle\u003e.hhrail{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhrail *{box-sizing:border-box}.hhrail 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a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hhrail table th,.rte .hhrail table td{padding:11px var(--gut)}.hhrail .hhrail-ladder th:last-child,.hhrail .hhrail-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hhrail .hhrail-buy{align-items:start}.hhrail .hhrail-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hhrail table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hhrail table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hhrail .hhrail-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhrail table.hhrail-spec th,.hhrail table.hhrail-spec td{display:block;width:auto}.hhrail table.hhrail-spec th{border-bottom:0;padding-bottom:0}}.hhrail .hhrail-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhrail .hhrail-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhrail .hhrail-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhrail .hhrail-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhrail .hhrail-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhrail .hhrail-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhrail .hhrail-close p.hhrail-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhrail .hhrail-stat3 a{color:var(--bright)}.hhrail .hhrail-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhrail .hhrail-cmp thead a .hhrail-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhrail .hhrail-ladder.hhrail-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhrail .hhrail-ladder.hhrail-out td:last-child::before{content:\"Output:\\00a0\"}}.hhrail .hhrail-tw + p,.hhrail .hhrail-tw + h3,.hhrail .hhrail-warn + p,.hhrail .hhrail-warn + h3,.hhrail .hhrail-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhrail\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhrail-c\"\u003e\n\u003cp class=\"hhrail-eyebrow\"\u003eSafety accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail\u003c\/h2\u003e\n\u003cp class=\"hhrail-lead\"\u003eA ring of light wood around the top of the HIVE, to help prevent accidental contact with the hot cage and stones. It sits on 3 supports with stainless steel fasteners, clamped between the heater's top wire and the next one down.\u003c\/p\u003e\n\u003cp\u003eThe ring is 25.4 in (645 mm) across. The HIVE Mini takes a smaller ring, so the two rails are not interchangeable.\u003c\/p\u003e\n\u003cp\u003eHUUM asks for all wooden parts to be treated with a heat resistant, non toxic wood preservative, reapplied at least once a year, to keep the wood from warping, cracking or decaying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE 12, HIVE 15 and HIVE 18. Not made for the HIVE Mini, which has its own rail. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-safety-rail.jpg?width=1200\" alt=\"HUUM safety rail fitted to a HIVE series heater cage\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhrail-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrail-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhrail-big\"\u003eHUUM HIVE 12, 15, 18\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrail-lbl\"\u003eDiameter\u003c\/p\u003e\n\u003cp class=\"hhrail-big\"\u003e25.4 in (645 mm)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrail-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hhrail-big\"\u003eWood, stainless steel fasteners\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhrail-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhrail-c\"\u003e\n\u003cp class=\"hhrail-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this safety rail fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWooden ring\u003c\/li\u003e\n\u003cli\u003e3 two piece supports\u003c\/li\u003e\n\u003cli\u003e3 bolts and nuts\u003c\/li\u003e\n\u003cli\u003e12 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhrail-c\"\u003e\n\u003cp class=\"hhrail-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail specifications\u003c\/h2\u003e\n\u003cp class=\"hhrail-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhrail-tw\"\u003e\u003ctable class=\"hhrail-spec\"\u003e\n\u003ccaption\u003eHUUM Safety Rail reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3003012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE 12, 15, 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e25.4 in (645 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWood, stainless steel fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhrail-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhrail-c\"\u003e\n\u003cp class=\"hhrail-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhrail-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE 12, HIVE 15 and HIVE 18.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA ring of light wood around the top of the HIVE, to help prevent accidental contact with the hot cage and stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the wood need any care?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eYes, annually. The treatment HUUM specifies is a heat resistant, non toxic wood preservative, and the reason is that untreated timber in a sauna warps, cracks and in time decays.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the HIVE Mini, which has its own rail.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eIt sits on 3 supports with stainless steel fasteners, clamped between the heater's top wire and the next one down.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWooden ring, 3 two piece supports, 3 bolts and nuts, 12 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3003012.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhrail-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhrail-c\"\u003e\n\u003cp class=\"hhrail-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this safety rail fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhrail-who\"\u003e\n\u003cimg class=\"hhrail-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhrail-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhrail-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266444143,"sku":"H3003012","price":396.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-safety-rail.jpg?v=1790068075"},{"product_id":"huum-hive-mini-safety-rail","title":"HUUM Safety Rail | HIVE Mini 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hhmrail{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhmrail 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class=\"hhmrail\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhmrail-c\"\u003e\n\u003cp class=\"hhmrail-eyebrow\"\u003eSafety accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail\u003c\/h2\u003e\n\u003cp class=\"hhmrail-lead\"\u003eA ring of light wood around the top of the HIVE Mini, to help prevent accidental contact with the hot cage and stones. It sits on 3 supports with stainless steel fasteners, clamped between the heater's top wire and the next one down.\u003c\/p\u003e\n\u003cp\u003eThe ring is 21.45 in (545 mm) across. The full size HIVE takes a larger ring, so the two rails are not interchangeable.\u003c\/p\u003e\n\u003cp\u003eHUUM asks for all wooden parts to be treated with a heat resistant, non toxic wood preservative, reapplied at least once a year, to keep the wood from warping, cracking or decaying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE Mini 6, HIVE Mini 9 and HIVE Mini 11. Not made for the full size HIVE 12, 15 and 18, which have their own rail. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhmrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-safety-rail.jpg?width=1200\" alt=\"HUUM safety rail fitted to a HIVE series heater cage\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhmrail-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrail-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhmrail-big\"\u003eHUUM HIVE Mini 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrail-lbl\"\u003eDiameter\u003c\/p\u003e\n\u003cp class=\"hhmrail-big\"\u003e21.45 in (545 mm)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrail-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hhmrail-big\"\u003eWood, stainless steel fasteners\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmrail-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhmrail-c\"\u003e\n\u003cp class=\"hhmrail-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this safety rail fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWooden ring\u003c\/li\u003e\n\u003cli\u003e3 two piece supports\u003c\/li\u003e\n\u003cli\u003e3 bolts and nuts\u003c\/li\u003e\n\u003cli\u003e12 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhmrail-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-safety-rail-in-sauna.jpg?width=1200\" alt=\"HUUM HIVE Mini with its safety rail in a sauna\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Safety Rail\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhmrail-c\"\u003e\n\u003cp class=\"hhmrail-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail specifications\u003c\/h2\u003e\n\u003cp class=\"hhmrail-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhmrail-tw\"\u003e\u003ctable class=\"hhmrail-spec\"\u003e\n\u003ccaption\u003eHUUM Safety Rail reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3002012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE Mini 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e21.45 in (545 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWood, stainless steel fasteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmrail-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhmrail-c\"\u003e\n\u003cp class=\"hhmrail-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Safety Rail questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhmrail-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE Mini 6, HIVE Mini 9 and HIVE Mini 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA ring of light wood around the top of the HIVE Mini, to help prevent accidental contact with the hot cage and stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the wood need any care?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eYes, annually. The treatment HUUM specifies is a heat resistant, non toxic wood preservative, and the reason is that untreated timber in a sauna warps, cracks and in time decays.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eIt sits on 3 supports with stainless steel fasteners, clamped between the heater's top wire and the next one down.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWooden ring, 3 two piece supports, 3 bolts and nuts, 12 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3002012.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhmrail-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhmrail-c\"\u003e\n\u003cp class=\"hhmrail-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this safety rail fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhmrail-who\"\u003e\n\u003cimg class=\"hhmrail-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhmrail-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhmrail-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266476911,"sku":"H3002012","price":322.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-safety-rail.jpg?v=1790068087"},{"product_id":"huum-cliff-reflector","title":"HUUM Reflector Panel | CLIFF 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hcrefl{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcrefl 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.hcrefl-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcrefl .hcrefl-ladder.hcrefl-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcrefl .hcrefl-ladder.hcrefl-out td:last-child::before{content:\"Output:\\00a0\"}}.hcrefl .hcrefl-tw + p,.hcrefl .hcrefl-tw + h3,.hcrefl .hcrefl-warn + p,.hcrefl .hcrefl-warn + h3,.hcrefl .hcrefl-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcrefl\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hcrefl-c\"\u003e\n\u003cp class=\"hcrefl-eyebrow\"\u003eClearance accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel\u003c\/h2\u003e\n\u003cp class=\"hcrefl-lead\"\u003eA stainless steel panel that hooks onto the side of the CLIFF. HUUM's CLIFF reflector instructions state that the heater's safety distance from flammable material decreases by half when a reflector is used.\u003c\/p\u003e\n\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall. HUUM does not say which of the printed distances the reduction applies to, and your inspector has the final say.\u003c\/p\u003e\n\u003cp\u003eOn the CLIFF the panel goes on after the stones are laid, with its upper hooks on the fourth rib from the top.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e CLIFF 6, CLIFF 9 and CLIFF 11. Not made for the CLIFF Mini 4. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcrefl-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-reflector.jpg?width=1200\" alt=\"HUUM stainless reflector panel for CLIFF heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Reflector Panel, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hcrefl-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrefl-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hcrefl-big\"\u003eHUUM CLIFF 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrefl-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hcrefl-big\"\u003eStainless steel\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcrefl-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hcrefl-big\"\u003eHooks onto the heater's ribs\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcrefl-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hcrefl-c\"\u003e\n\u003cp class=\"hcrefl-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this reflector panel fits\u003c\/h2\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcrefl-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-reflector-installed.jpg?width=1200\" alt=\"HUUM CLIFF heater in a bench with the reflector panel on its side\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Reflector Panel\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hcrefl-c\"\u003e\n\u003cp class=\"hcrefl-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel specifications\u003c\/h2\u003e\n\u003cp class=\"hcrefl-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hcrefl-tw\"\u003e\u003ctable class=\"hcrefl-spec\"\u003e\n\u003ccaption\u003eHUUM Reflector Panel reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3004022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM CLIFF 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eHooks onto the heater's ribs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcrefl-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hcrefl-c\"\u003e\n\u003cp class=\"hcrefl-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hcrefl-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eCLIFF 6, CLIFF 9 and CLIFF 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's CLIFF reflector instructions state that the heater's safety distance from flammable material decreases by half when a reflector is used.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhere does it sit on the heater?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eAfter the stones, with the upper hooks on the fourth rib from the top.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAnything to check before building closer to a wall?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA stainless steel panel that hooks onto the side of the CLIFF.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3004022.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcrefl-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcrefl-c\"\u003e\n\u003cp class=\"hcrefl-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this reflector panel fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hcrefl-who\"\u003e\n\u003cimg class=\"hcrefl-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcrefl-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcrefl-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266542447,"sku":"H3004022","price":294.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-reflector.jpg?v=1790068095"},{"product_id":"huum-steel-reflector","title":"HUUM Reflector Panel | STEEL 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hsrefl{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsrefl *{box-sizing:border-box}.hsrefl 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.hsrefl-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsrefl .hsrefl-ladder.hsrefl-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsrefl .hsrefl-ladder.hsrefl-out td:last-child::before{content:\"Output:\\00a0\"}}.hsrefl .hsrefl-tw + p,.hsrefl .hsrefl-tw + h3,.hsrefl .hsrefl-warn + p,.hsrefl .hsrefl-warn + h3,.hsrefl .hsrefl-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsrefl\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hsrefl-c\"\u003e\n\u003cp class=\"hsrefl-eyebrow\"\u003eClearance accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel\u003c\/h2\u003e\n\u003cp class=\"hsrefl-lead\"\u003eA stainless steel panel that hooks onto the side of the STEEL. HUUM states that a reflector halves the heater's safety distance from the walls.\u003c\/p\u003e\n\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall. HUUM does not say which of the printed distances the reduction applies to, and your inspector has the final say.\u003c\/p\u003e\n\u003cp\u003eOn the STEEL the panel goes on before the stones and before the wooden profiles of a safety rail, with its top edge level with the top of the heater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e STEEL 6, STEEL 9 and STEEL 11. Not made for the STEEL Mini 4. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hsrefl-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-reflector.jpg?width=1200\" alt=\"HUUM stainless reflector panel for STEEL heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Reflector Panel, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hsrefl-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrefl-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hsrefl-big\"\u003eHUUM STEEL 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrefl-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hsrefl-big\"\u003eStainless steel\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hsrefl-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hsrefl-big\"\u003eHooks onto the heater\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsrefl-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hsrefl-c\"\u003e\n\u003cp class=\"hsrefl-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this reflector panel fits\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hsrefl-c\"\u003e\n\u003cp class=\"hsrefl-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel specifications\u003c\/h2\u003e\n\u003cp class=\"hsrefl-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hsrefl-tw\"\u003e\u003ctable class=\"hsrefl-spec\"\u003e\n\u003ccaption\u003eHUUM Reflector Panel reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3006022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM STEEL 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eHooks onto the heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsrefl-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hsrefl-c\"\u003e\n\u003cp class=\"hsrefl-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hsrefl-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eSTEEL 6, STEEL 9 and STEEL 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM states that a reflector halves the heater's safety distance from the walls.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhere does it sit on the heater?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eTop edge level with the top of the heater. Fit it before you lay the stones, and before the wooden profiles if a safety rail is going on as well.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAnything to check before building closer to a wall?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA stainless steel panel that hooks onto the side of the STEEL.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3006022.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsrefl-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsrefl-c\"\u003e\n\u003cp class=\"hsrefl-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this reflector panel fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hsrefl-who\"\u003e\n\u003cimg class=\"hsrefl-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsrefl-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsrefl-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266607983,"sku":"H3006022","price":294.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-reflector.jpg?v=1790068102"},{"product_id":"huum-hive-reflector","title":"HUUM Reflector Panel | HIVE 12, 15 and 18 Sauna Heaters","description":"\u003cstyle\u003e.hhrefl{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhrefl *{box-sizing:border-box}.hhrefl 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.hhrefl-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhrefl .hhrefl-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhrefl .hhrefl-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhrefl .hhrefl-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhrefl .hhrefl-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhrefl .hhrefl-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhrefl .hhrefl-close p.hhrefl-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhrefl .hhrefl-stat3 a{color:var(--bright)}.hhrefl .hhrefl-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhrefl .hhrefl-cmp thead a .hhrefl-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhrefl .hhrefl-ladder.hhrefl-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhrefl .hhrefl-ladder.hhrefl-out td:last-child::before{content:\"Output:\\00a0\"}}.hhrefl .hhrefl-tw + p,.hhrefl .hhrefl-tw + h3,.hhrefl .hhrefl-warn + p,.hhrefl .hhrefl-warn + h3,.hhrefl .hhrefl-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhrefl\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhrefl-c\"\u003e\n\u003cp class=\"hhrefl-eyebrow\"\u003eClearance accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel\u003c\/h2\u003e\n\u003cp class=\"hhrefl-lead\"\u003eA curved stainless steel panel that hooks over the top wires of the HIVE and reflects back the heat that comes off the heater. HUUM states that it lets the heater's safety distance from the walls be reduced by half.\u003c\/p\u003e\n\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall. HUUM does not say which of the printed distances the reduction applies to, and your inspector has the final say.\u003c\/p\u003e\n\u003cp\u003ePanels can be bolted together to cover more of the heater, and each one comes with the 4 bolts and nuts for joining. HUUM makes this reflector in two sizes; this one is for the full size HIVE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE 12, HIVE 15 and HIVE 18. Not made for the HIVE Mini, which takes the smaller reflector. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhrefl-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-reflector_0c6381fb-621c-4ebe-8d08-034f046a38b3.jpg?width=1200\" alt=\"HUUM stainless reflector panel for the HIVE sauna heater\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Reflector Panel, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhrefl-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrefl-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhrefl-big\"\u003eHUUM HIVE 12, 15, 18\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrefl-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hhrefl-big\"\u003eStainless steel\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhrefl-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hhrefl-big\"\u003eHooks over the heater's top wires\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhrefl-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhrefl-c\"\u003e\n\u003cp class=\"hhrefl-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this reflector panel fits\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhrefl-c\"\u003e\n\u003cp class=\"hhrefl-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel specifications\u003c\/h2\u003e\n\u003cp class=\"hhrefl-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhrefl-tw\"\u003e\u003ctable class=\"hhrefl-spec\"\u003e\n\u003ccaption\u003eHUUM Reflector Panel reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3003032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE 12, 15, 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eHooks over the heater's top wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhrefl-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhrefl-c\"\u003e\n\u003cp class=\"hhrefl-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhrefl-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE 12, HIVE 15 and HIVE 18.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA curved stainless steel panel that hooks over the top wires of the HIVE and reflects back the heat that comes off the heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM states that it lets the heater's safety distance from the walls be reduced by half.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I join more than one?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003ePanels can be bolted together to cover more of the heater, and each one comes with the 4 bolts and nuts for joining.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the HIVE Mini, which takes the smaller reflector.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAnything to check before building closer to a wall?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3003032.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhrefl-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhrefl-c\"\u003e\n\u003cp class=\"hhrefl-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this reflector panel fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhrefl-who\"\u003e\n\u003cimg class=\"hhrefl-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhrefl-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhrefl-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514266870127,"sku":"H3003032","price":328.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-reflector_0c6381fb-621c-4ebe-8d08-034f046a38b3.jpg?v=1790143498"},{"product_id":"huum-hive-mini-reflector","title":"HUUM Reflector Panel | HIVE Mini 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hhmrefl{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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h3,.hhmrefl .hhmrefl-warn + p,.hhmrefl .hhmrefl-warn + h3,.hhmrefl .hhmrefl-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhmrefl\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhmrefl-c\"\u003e\n\u003cp class=\"hhmrefl-eyebrow\"\u003eClearance accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel\u003c\/h2\u003e\n\u003cp class=\"hhmrefl-lead\"\u003eA curved stainless steel panel that hooks over the top wires of the HIVE Mini and reflects back the heat that comes off the heater. HUUM states that it lets the heater's safety distance from the walls be reduced by half.\u003c\/p\u003e\n\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall. HUUM does not say which of the printed distances the reduction applies to, and your inspector has the final say.\u003c\/p\u003e\n\u003cp\u003ePanels can be bolted together to cover more of the heater, and each one comes with the 4 bolts and nuts for joining. HUUM makes this reflector in two sizes; this one is for the HIVE Mini.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE Mini 6, HIVE Mini 9 and HIVE Mini 11. Not made for the full size HIVE, which takes the larger reflector. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhmrefl-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-reflector_333392f7-f7d9-4b75-afc8-053ba6b788f1.jpg?width=1200\" alt=\"HUUM stainless reflector panel for the HIVE Mini sauna heater\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Reflector Panel, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhmrefl-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrefl-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhmrefl-big\"\u003eHUUM HIVE Mini 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrefl-lbl\"\u003eMaterial\u003c\/p\u003e\n\u003cp class=\"hhmrefl-big\"\u003eStainless steel\u003c\/p\u003e\n\u003cp\u003eHUUM's published material for this part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmrefl-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hhmrefl-big\"\u003eHooks over the heater's top wires\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmrefl-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhmrefl-c\"\u003e\n\u003cp class=\"hhmrefl-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this reflector panel fits\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhmrefl-c\"\u003e\n\u003cp class=\"hhmrefl-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel specifications\u003c\/h2\u003e\n\u003cp class=\"hhmrefl-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhmrefl-tw\"\u003e\u003ctable class=\"hhmrefl-spec\"\u003e\n\u003ccaption\u003eHUUM Reflector Panel reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3002032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE Mini 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eHooks over the heater's top wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmrefl-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhmrefl-c\"\u003e\n\u003cp class=\"hhmrefl-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Reflector Panel questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhmrefl-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE Mini 6, HIVE Mini 9 and HIVE Mini 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA curved stainless steel panel that hooks over the top wires of the HIVE Mini and reflects back the heat that comes off the heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM states that it lets the heater's safety distance from the walls be reduced by half.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I join more than one?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003ePanels can be bolted together to cover more of the heater, and each one comes with the 4 bolts and nuts for joining.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAnything to check before building closer to a wall?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eConfirm your layout against the heater manual before you build closer to a wall.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3002032.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhmrefl-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhmrefl-c\"\u003e\n\u003cp class=\"hhmrefl-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this reflector panel fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhmrefl-who\"\u003e\n\u003cimg class=\"hhmrefl-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhmrefl-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhmrefl-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267033967,"sku":"H3002032","price":302.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-reflector_333392f7-f7d9-4b75-afc8-053ba6b788f1.jpg?v=1790143493"},{"product_id":"huum-cliff-steel-embedding-flange","title":"HUUM Embedding Flange | CLIFF and STEEL 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hcsflange{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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p.hcsflange-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcsflange .hcsflange-stat3 a{color:var(--bright)}.hcsflange .hcsflange-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcsflange .hcsflange-cmp thead a .hcsflange-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcsflange .hcsflange-ladder.hcsflange-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcsflange .hcsflange-ladder.hcsflange-out td:last-child::before{content:\"Output:\\00a0\"}}.hcsflange .hcsflange-tw + p,.hcsflange .hcsflange-tw + h3,.hcsflange .hcsflange-warn + p,.hcsflange .hcsflange-warn + h3,.hcsflange .hcsflange-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcsflange\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hcsflange-c\"\u003e\n\u003cp class=\"hcsflange-eyebrow\"\u003eInstallation accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange\u003c\/h2\u003e\n\u003cp class=\"hcsflange-lead\"\u003eHUUM's CLIFF and STEEL can be set partly down into the sauna bench. This stainless steel flange covers the rough cut edge of the opening so the bench looks finished around the heater.\u003c\/p\u003e\n\u003cp\u003eHUUM's sheet gives a 16.7 in (424 mm) square cut-out with the 3\/4 in (19 mm) corners left uncut, and at least 21.7 in (550 mm) of the heater must stand above the bench surface. The four slats screw down into pre-drilled 3 mm holes. The flange is trim only. Follow the safety distances in your heater's manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e CLIFF 6, 9, 11 and STEEL 6, 9, 11. Not made for the CLIFF Mini 4 or STEEL Mini 4. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcsflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-steel-embedding-flange.jpg?width=1200\" alt=\"HUUM embedding flange for CLIFF and STEEL heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hcsflange-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcsflange-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hcsflange-big\"\u003eHUUM CLIFF 6, 9, 11 and STEEL 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcsflange-lbl\"\u003eCut-out\u003c\/p\u003e\n\u003cp class=\"hcsflange-big\"\u003e16.7 x 16.7 in (424 x 424 mm)\u003c\/p\u003e\n\u003cp\u003eTraced from the part itself rather than a fixed hole size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hcsflange-lbl\"\u003eHeater above bench\u003c\/p\u003e\n\u003cp class=\"hcsflange-big\"\u003eAt least 21.7 in (550 mm)\u003c\/p\u003e\n\u003cp\u003eHUUM's minimum for this installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcsflange-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hcsflange-c\"\u003e\n\u003cp class=\"hcsflange-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this embedding flange fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4 stainless steel slats\u003c\/li\u003e\n\u003cli\u003e4 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hcsflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-steel-embedding-flange-bench.jpg?width=1200\" alt=\"HUUM heater recessed into a bench with the embedding flange\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hcsflange-c\"\u003e\n\u003cp class=\"hcsflange-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange specifications\u003c\/h2\u003e\n\u003cp class=\"hcsflange-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hcsflange-tw\"\u003e\u003ctable class=\"hcsflange-spec\"\u003e\n\u003ccaption\u003eHUUM Embedding Flange reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3004032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM CLIFF 6, 9, 11 and STEEL 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut-out\u003c\/th\u003e\n\u003ctd\u003e16.7 x 16.7 in (424 x 424 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater above bench\u003c\/th\u003e\n\u003ctd\u003eAt least 21.7 in (550 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcsflange-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hcsflange-c\"\u003e\n\u003cp class=\"hcsflange-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hcsflange-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eCLIFF 6, 9, 11 and STEEL 6, 9, 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFollow the safety distances in your heater's manual.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow much of the heater has to stand above the bench?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's sheet gives a 16.7 in (424 mm) square cut-out with the 3\/4 in (19 mm) corners left uncut, and at least 21.7 in (550 mm) of the heater must stand above the bench surface.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the CLIFF Mini 4 or STEEL Mini 4.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThis stainless steel flange covers the rough cut edge of the opening so the bench looks finished around the heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003e4 stainless steel slats, 4 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3004032.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcsflange-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcsflange-c\"\u003e\n\u003cp class=\"hcsflange-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this embedding flange fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hcsflange-who\"\u003e\n\u003cimg class=\"hcsflange-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcsflange-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcsflange-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267099503,"sku":"H3004032","price":331.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-steel-embedding-flange.jpg?v=1790068125"},{"product_id":"huum-drop-embedding-flange","title":"HUUM Embedding Flange | DROP 4, 6, 7 and 9 Sauna Heaters","description":"\u003cstyle\u003e.hdflange{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdflange 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!important;margin:0}.hdflange .hdflange-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdflange .hdflange-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdflange .hdflange-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdflange .hdflange-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdflange .hdflange-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdflange .hdflange-close p.hdflange-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdflange .hdflange-stat3 a{color:var(--bright)}.hdflange .hdflange-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdflange .hdflange-cmp thead a .hdflange-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdflange .hdflange-ladder.hdflange-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdflange .hdflange-ladder.hdflange-out td:last-child::before{content:\"Output:\\00a0\"}}.hdflange .hdflange-tw + p,.hdflange .hdflange-tw + h3,.hdflange .hdflange-warn + p,.hdflange .hdflange-warn + h3,.hdflange .hdflange-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdflange\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdflange-c\"\u003e\n\u003cp class=\"hdflange-eyebrow\"\u003eInstallation accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange\u003c\/h2\u003e\n\u003cp class=\"hdflange-lead\"\u003eThe DROP can be set partly down into the bench instead of hanging clear of it. HUUM's DROP manual names this flange for that installation: curved plates that cover the cut edge of the opening, with their ends butting against the wall.\u003c\/p\u003e\n\u003cp\u003eThere is no fixed hole size. HUUM's sheet has you trace the flange's inner edge on the bench and cut 2 in (52 mm) outward from that line. At least 15 in (380 mm) of the heater must stand above the bench surface. The flange is trim only. Follow the safety distances in your heater's manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e DROP 4, DROP 6, DROP 7 and DROP 9, which share one body. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-embedding-flange.jpg?width=1200\" alt=\"HUUM embedding flange for DROP heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hdflange-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdflange-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hdflange-big\"\u003eHUUM DROP 4, 6, 7, 9\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdflange-lbl\"\u003eCut-out\u003c\/p\u003e\n\u003cp class=\"hdflange-big\"\u003eTraced from the flange, 2 in (52 mm) o\u003c\/p\u003e\n\u003cp\u003eTraced from the part itself rather than a fixed hole size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdflange-lbl\"\u003eHeater above bench\u003c\/p\u003e\n\u003cp class=\"hdflange-big\"\u003eAt least 15 in (380 mm)\u003c\/p\u003e\n\u003cp\u003eHUUM's minimum for this installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdflange-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hdflange-c\"\u003e\n\u003cp class=\"hdflange-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this embedding flange fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCurved flange plates\u003c\/li\u003e\n\u003cli\u003e3 brackets\u003c\/li\u003e\n\u003cli\u003e6 bolts and nuts\u003c\/li\u003e\n\u003cli\u003e6 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hdflange-c\"\u003e\n\u003cp class=\"hdflange-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange specifications\u003c\/h2\u003e\n\u003cp class=\"hdflange-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hdflange-tw\"\u003e\u003ctable class=\"hdflange-spec\"\u003e\n\u003ccaption\u003eHUUM Embedding Flange reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3001022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 4, 6, 7, 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut-out\u003c\/th\u003e\n\u003ctd\u003eTraced from the flange, 2 in (52 mm) outward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater above bench\u003c\/th\u003e\n\u003ctd\u003eAt least 15 in (380 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdflange-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdflange-c\"\u003e\n\u003cp class=\"hdflange-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hdflange-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eDROP 4, DROP 6, DROP 7 and DROP 9, which share one body.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe DROP can be set partly down into the bench instead of hanging clear of it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFollow the safety distances in your heater's manual.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow big does the cut-out have to be?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's sheet has you trace the flange's inner edge on the bench and cut 2 in (52 mm) outward from that line.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow much of the heater has to stand above the bench?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eAt least 15 in (380 mm) of the heater must stand above the bench surface.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eCurved flange plates, 3 brackets, 6 bolts and nuts, 6 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3001022.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdflange-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdflange-c\"\u003e\n\u003cp class=\"hdflange-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this embedding flange fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hdflange-who\"\u003e\n\u003cimg class=\"hdflange-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdflange-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdflange-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267165039,"sku":"H3001022","price":322.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-embedding-flange.jpg?v=1790068132"},{"product_id":"huum-hive-embedding-flange","title":"HUUM Embedding Flange | HIVE 12, 15 and 18 Sauna Heaters","description":"\u003cstyle\u003e.hhflange{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhflange 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.hhflange-buy{grid-template-columns:1fr}.hhflange .hhflange-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hhflange .hhflange-toc\u003esummary{display:none}.hhflange .hhflange-toc ol{display:grid !important}}@media screen and (max-width:560px){.hhflange .hhflange-ladder thead{position:absolute;left:-9999px}.hhflange .hhflange-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hhflange .hhflange-ladder tr.on{background:var(--hl)}.hhflange .hhflange-ladder td{display:block;border:0;padding:0}.hhflange .hhflange-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hhflange .hhflange-hl td,.hhflange .hhflange-hl th,.hhflange .hhflange-ladder tr.on td,.hhflange table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hhflange table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hhflange table th,.rte .hhflange table 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!important;margin:0}.hhflange .hhflange-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhflange .hhflange-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhflange .hhflange-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhflange .hhflange-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhflange .hhflange-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhflange .hhflange-close p.hhflange-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhflange .hhflange-stat3 a{color:var(--bright)}.hhflange .hhflange-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhflange .hhflange-cmp thead a .hhflange-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhflange .hhflange-ladder.hhflange-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhflange .hhflange-ladder.hhflange-out td:last-child::before{content:\"Output:\\00a0\"}}.hhflange .hhflange-tw + p,.hhflange .hhflange-tw + h3,.hhflange .hhflange-warn + p,.hhflange .hhflange-warn + h3,.hhflange .hhflange-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhflange\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhflange-c\"\u003e\n\u003cp class=\"hhflange-eyebrow\"\u003eInstallation accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange\u003c\/h2\u003e\n\u003cp class=\"hhflange-lead\"\u003eThe HIVE can be set partly down into the floor or the bench. This round flange covers the cut edge of the opening. Its arcs bolt to angle irons that are fixed to the floor.\u003c\/p\u003e\n\u003cp\u003eThe cut-out is a 27.2 in (69.2 cm) circle, and at least 13.8 in (350 mm) of the heater must stand above the surface. The flange is trim only. Follow the safety distances in your heater's manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE 12, HIVE 15 and HIVE 18. Not made for the HIVE Mini, which has its own flange. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-embedding-flange_6699ea87-8674-4a3e-bfaf-185a1d1c2292.jpg?width=1200\" alt=\"HUUM stainless embedding flange for the HIVE sauna heater\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhflange-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhflange-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhflange-big\"\u003eHUUM HIVE 12, 15, 18\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhflange-lbl\"\u003eCut-out\u003c\/p\u003e\n\u003cp class=\"hhflange-big\"\u003e27.2 in (69.2 cm) diameter\u003c\/p\u003e\n\u003cp\u003eTraced from the part itself rather than a fixed hole size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhflange-lbl\"\u003eHeater above surface\u003c\/p\u003e\n\u003cp class=\"hhflange-big\"\u003eAt least 13.8 in (350 mm)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhflange-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhflange-c\"\u003e\n\u003cp class=\"hhflange-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this embedding flange fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlange arcs\u003c\/li\u003e\n\u003cli\u003eAngle irons\u003c\/li\u003e\n\u003cli\u003e6 bolts and nuts\u003c\/li\u003e\n\u003cli\u003e6 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-embedding-flange-in-sauna.jpg?width=1200\" alt=\"HUUM HIVE series heater recessed into the floor with the embedding flange\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhflange-c\"\u003e\n\u003cp class=\"hhflange-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange specifications\u003c\/h2\u003e\n\u003cp class=\"hhflange-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhflange-tw\"\u003e\u003ctable class=\"hhflange-spec\"\u003e\n\u003ccaption\u003eHUUM Embedding Flange reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3003022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE 12, 15, 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut-out\u003c\/th\u003e\n\u003ctd\u003e27.2 in (69.2 cm) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater above surface\u003c\/th\u003e\n\u003ctd\u003eAt least 13.8 in (350 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhflange-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhflange-c\"\u003e\n\u003cp class=\"hhflange-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhflange-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE 12, HIVE 15 and HIVE 18.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFollow the safety distances in your heater's manual.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Mini?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eNot made for the HIVE Mini, which has its own flange.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFlange arcs, Angle irons, 6 bolts and nuts, 6 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3003022.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhflange-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhflange-c\"\u003e\n\u003cp class=\"hhflange-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this embedding flange fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhflange-who\"\u003e\n\u003cimg class=\"hhflange-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhflange-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhflange-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267263343,"sku":"H3003022","price":397.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-embedding-flange_6699ea87-8674-4a3e-bfaf-185a1d1c2292.jpg?v=1790143480"},{"product_id":"huum-hive-mini-embedding-flange","title":"HUUM Embedding Flange | HIVE Mini 6, 9 and 11 Sauna Heaters","description":"\u003cstyle\u003e.hhmflange{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhmflange table.hhmflange-spec th,.hhmflange table.hhmflange-spec td{display:block;width:auto}.hhmflange table.hhmflange-spec th{border-bottom:0;padding-bottom:0}}.hhmflange .hhmflange-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhmflange .hhmflange-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhmflange .hhmflange-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhmflange .hhmflange-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhmflange .hhmflange-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhmflange .hhmflange-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhmflange .hhmflange-close p.hhmflange-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhmflange .hhmflange-stat3 a{color:var(--bright)}.hhmflange .hhmflange-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhmflange .hhmflange-cmp thead a .hhmflange-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhmflange .hhmflange-ladder.hhmflange-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhmflange .hhmflange-ladder.hhmflange-out td:last-child::before{content:\"Output:\\00a0\"}}.hhmflange .hhmflange-tw + p,.hhmflange .hhmflange-tw + h3,.hhmflange .hhmflange-warn + p,.hhmflange .hhmflange-warn + h3,.hhmflange .hhmflange-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhmflange\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhmflange-c\"\u003e\n\u003cp class=\"hhmflange-eyebrow\"\u003eInstallation accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange\u003c\/h2\u003e\n\u003cp class=\"hhmflange-lead\"\u003eThe HIVE Mini can be set partly down into the floor or the bench. This round flange covers the cut edge of the opening. Its arcs bolt to angle irons that are fixed to the floor.\u003c\/p\u003e\n\u003cp\u003eThe cut-out is a 22.9 in (58.2 cm) circle, and at least 13.8 in (350 mm) of the heater must stand above the surface. The flange is trim only. Follow the safety distances in your heater's manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e HIVE Mini 6, HIVE Mini 9 and HIVE Mini 11. Not made for the full size HIVE, which has its own flange. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhmflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-embedding-flange_e61edf78-2c7f-4488-87ea-a8627742ec4a.jpg?width=1200\" alt=\"HUUM stainless embedding flange for the HIVE Mini sauna heater\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hhmflange-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmflange-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hhmflange-big\"\u003eHUUM HIVE Mini 6, 9, 11\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmflange-lbl\"\u003eCut-out\u003c\/p\u003e\n\u003cp class=\"hhmflange-big\"\u003e22.9 in (58.2 cm) diameter\u003c\/p\u003e\n\u003cp\u003eTraced from the part itself rather than a fixed hole size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhmflange-lbl\"\u003eHeater above surface\u003c\/p\u003e\n\u003cp class=\"hhmflange-big\"\u003eAt least 13.8 in (350 mm)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmflange-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hhmflange-c\"\u003e\n\u003cp class=\"hhmflange-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this embedding flange fits\u003c\/h2\u003e\n\u003ch3\u003eIn the set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlange arcs\u003c\/li\u003e\n\u003cli\u003eAngle irons\u003c\/li\u003e\n\u003cli\u003e6 bolts and nuts\u003c\/li\u003e\n\u003cli\u003e6 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhmflange-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-embedding-flange-in-sauna.jpg?width=1200\" alt=\"HUUM HIVE Mini set into a bench with the embedding flange\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Embedding Flange\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hhmflange-c\"\u003e\n\u003cp class=\"hhmflange-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange specifications\u003c\/h2\u003e\n\u003cp class=\"hhmflange-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hhmflange-tw\"\u003e\u003ctable class=\"hhmflange-spec\"\u003e\n\u003ccaption\u003eHUUM Embedding Flange reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3002022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE Mini 6, 9, 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut-out\u003c\/th\u003e\n\u003ctd\u003e22.9 in (58.2 cm) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater above surface\u003c\/th\u003e\n\u003ctd\u003eAt least 13.8 in (350 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhmflange-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhmflange-c\"\u003e\n\u003cp class=\"hhmflange-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Embedding Flange questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hhmflange-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHIVE Mini 6, HIVE Mini 9 and HIVE Mini 11.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it change the heater's safety distances?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFollow the safety distances in your heater's manual.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat comes in the set?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eFlange arcs, Angle irons, 6 bolts and nuts, 6 screws.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3002022.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhmflange-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhmflange-c\"\u003e\n\u003cp class=\"hhmflange-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this embedding flange fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hhmflange-who\"\u003e\n\u003cimg class=\"hhmflange-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhmflange-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhmflange-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267328879,"sku":"H3002022","price":384.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-embedding-flange_e61edf78-2c7f-4488-87ea-a8627742ec4a.jpg?v=1790143489"},{"product_id":"huum-drop-drip-tray","title":"HUUM Drip Tray | DROP 4, 6, 7 and 9 Sauna Heaters","description":"\u003cstyle\u003e.hdtray{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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td,.hdtray .hdtray-hl th,.hdtray .hdtray-ladder tr.on td,.hdtray table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hdtray table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hdtray table th,.rte .hdtray table td{padding:11px var(--gut)}.hdtray .hdtray-ladder th:last-child,.hdtray .hdtray-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hdtray .hdtray-buy{align-items:start}.hdtray .hdtray-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hdtray table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hdtray table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hdtray .hdtray-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hdtray table.hdtray-spec th,.hdtray table.hdtray-spec td{display:block;width:auto}.hdtray table.hdtray-spec th{border-bottom:0;padding-bottom:0}}.hdtray .hdtray-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hdtray .hdtray-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdtray .hdtray-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdtray .hdtray-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdtray .hdtray-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdtray .hdtray-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdtray .hdtray-close p.hdtray-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdtray .hdtray-stat3 a{color:var(--bright)}.hdtray .hdtray-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdtray .hdtray-cmp thead a .hdtray-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdtray .hdtray-ladder.hdtray-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdtray .hdtray-ladder.hdtray-out td:last-child::before{content:\"Output:\\00a0\"}}.hdtray .hdtray-tw + p,.hdtray .hdtray-tw + h3,.hdtray .hdtray-warn + p,.hdtray .hdtray-warn + h3,.hdtray .hdtray-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdtray\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdtray-c\"\u003e\n\u003cp class=\"hdtray-eyebrow\"\u003eMaintenance accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM Drip Tray\u003c\/h2\u003e\n\u003cp class=\"hdtray-lead\"\u003eA black, heat resistant tray that sits loose under the DROP and keeps water from collecting under the heater. HUUM's DROP manual names it as an optional accessory.\u003c\/p\u003e\n\u003cp\u003eEmpty it after each session so moisture does not build up in the room. HUUM recommends a natural limescale remover for cleaning, and no abrasive cleaners or sponges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e DROP 4, DROP 6, DROP 7 and DROP 9, which share one body. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdtray-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-drip-tray_2f97a4b8-0f21-4462-81f1-ca66826cc5c4.jpg?width=1200\" alt=\"HUUM black drip tray for DROP heaters\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Drip Tray, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hdtray-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdtray-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hdtray-big\"\u003eHUUM DROP 4, 6, 7, 9\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdtray-lbl\"\u003eColor\u003c\/p\u003e\n\u003cp class=\"hdtray-big\"\u003eBlack\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdtray-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hdtray-big\"\u003ePlaced under the heater, no fixing\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdtray-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hdtray-c\"\u003e\n\u003cp class=\"hdtray-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this drip tray fits\u003c\/h2\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdtray-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-drip-tray-in-sauna.jpg?width=1200\" alt=\"HUUM DROP heater on a bench over the black drip tray\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM Drip Tray\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hdtray-c\"\u003e\n\u003cp class=\"hdtray-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM Drip Tray specifications\u003c\/h2\u003e\n\u003cp class=\"hdtray-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hdtray-tw\"\u003e\u003ctable class=\"hdtray-spec\"\u003e\n\u003ccaption\u003eHUUM Drip Tray reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3001072\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 4, 6, 7, 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003ePlaced under the heater, no fixing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdtray-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdtray-c\"\u003e\n\u003cp class=\"hdtray-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM Drip Tray questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hdtray-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eDROP 4, DROP 6, DROP 7 and DROP 9, which share one body.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA black, heat resistant tray that sits loose under the DROP and keeps water from collecting under the heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow do I clean it?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM recommends a natural limescale remover for cleaning, and no abrasive cleaners or sponges.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3001072.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdtray-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdtray-c\"\u003e\n\u003cp class=\"hdtray-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this drip tray fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hdtray-who\"\u003e\n\u003cimg class=\"hdtray-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdtray-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdtray-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267394415,"sku":"H3001072","price":126.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-drip-tray_2f97a4b8-0f21-4462-81f1-ca66826cc5c4.jpg?v=1790068164"},{"product_id":"huum-drop-9-upgrade-kit","title":"HUUM DROP 9 Upgrade Kit | Heat Diverter and Element Retainer","description":"\u003cstyle\u003e.hd9kit{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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td,.hd9kit .hd9kit-hl th,.hd9kit .hd9kit-ladder tr.on td,.hd9kit table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hd9kit table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hd9kit table th,.rte .hd9kit table td{padding:11px var(--gut)}.hd9kit .hd9kit-ladder th:last-child,.hd9kit .hd9kit-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hd9kit .hd9kit-buy{align-items:start}.hd9kit .hd9kit-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hd9kit table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hd9kit table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hd9kit .hd9kit-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hd9kit table.hd9kit-spec th,.hd9kit table.hd9kit-spec td{display:block;width:auto}.hd9kit table.hd9kit-spec th{border-bottom:0;padding-bottom:0}}.hd9kit .hd9kit-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hd9kit .hd9kit-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hd9kit .hd9kit-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hd9kit .hd9kit-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hd9kit .hd9kit-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hd9kit .hd9kit-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hd9kit .hd9kit-close p.hd9kit-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hd9kit .hd9kit-stat3 a{color:var(--bright)}.hd9kit .hd9kit-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hd9kit .hd9kit-cmp thead a .hd9kit-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hd9kit .hd9kit-ladder.hd9kit-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hd9kit .hd9kit-ladder.hd9kit-out td:last-child::before{content:\"Output:\\00a0\"}}.hd9kit .hd9kit-tw + p,.hd9kit .hd9kit-tw + h3,.hd9kit .hd9kit-warn + p,.hd9kit .hd9kit-warn + h3,.hd9kit .hd9kit-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hd9kit\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hd9kit-c\"\u003e\n\u003cp class=\"hd9kit-eyebrow\"\u003eUpgrade part\u003c\/p\u003e\n\u003ch2\u003eHUUM DROP 9 Upgrade Kit\u003c\/h2\u003e\n\u003cp class=\"hd9kit-lead\"\u003eA retrofit for DROP 9 heaters purchased before 2024. It adds the two parts every current DROP now ships with.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHeat diverter.\u003c\/b\u003e A plate that bolts to the heater's reflector at the upper rear edge. HUUM's sheet says its purpose is to protect the wall behind the heater and the corner of the ceiling from excessive heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eElement retainer.\u003c\/b\u003e The heating element retainer HUUM fits to DROP heaters with 5 heating elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eA new DROP does not need this kit.\u003c\/strong\u003e HUUM's current DROP manual lists a heat diverter and a heating element retainer in the box of every DROP 4, 6, 7 and 9. Not sure when your heater was bought? Call us with the details from its rating plate before you order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e DROP 9 heaters purchased before 2024. Check the model on your heater's rating plate before you order.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hd9kit-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-upgrade-kit.jpg?width=1200\" alt=\"HUUM DROP 9 upgrade kit fitted inside a DROP heater cage, stones removed\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM DROP 9 Upgrade Kit, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hd9kit-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hd9kit-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hd9kit-big\"\u003eHUUM DROP 9, purchased before 2024\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hd9kit-lbl\"\u003eIn the set\u003c\/p\u003e\n\u003cp class=\"hd9kit-big\"\u003eHeat diverter, element retainer, 4 M4 \u003c\/p\u003e\n\u003cp\u003eEverything supplied with it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hd9kit-lbl\"\u003eMounting\u003c\/p\u003e\n\u003cp class=\"hd9kit-big\"\u003eBolts to the heater's reflector\u003c\/p\u003e\n\u003cp\u003eHow the part fixes in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hd9kit-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hd9kit-c\"\u003e\n\u003cp class=\"hd9kit-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich heaters this upgrade kit fits\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hd9kit-c\"\u003e\n\u003cp class=\"hd9kit-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM DROP 9 Upgrade Kit specifications\u003c\/h2\u003e\n\u003cp class=\"hd9kit-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hd9kit-tw\"\u003e\u003ctable class=\"hd9kit-spec\"\u003e\n\u003ccaption\u003eHUUM DROP 9 Upgrade Kit reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH3001032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 9, purchased before 2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIn the set\u003c\/th\u003e\n\u003ctd\u003eHeat diverter, element retainer, 4 M4 x 8 bolts and 4 M4 nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eBolts to the heater's reflector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hd9kit-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hd9kit-c\"\u003e\n\u003cp class=\"hd9kit-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM DROP 9 Upgrade Kit questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hd9kit-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich heaters does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eDROP 9 heaters purchased before 2024.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhere does it sit on the heater?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA plate that bolts to the heater's reflector at the upper rear edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes a new heater need this?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eA new DROP does not need this kit.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH3001032.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hd9kit-close\" id=\"order\"\u003e\n\u003cdiv class=\"hd9kit-c\"\u003e\n\u003cp class=\"hd9kit-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which HUUM heater you have and we will confirm this upgrade kit fits it. The Mini and the full size share a name and take different parts, so the rating plate settles it.\u003c\/p\u003e\n\u003cdiv class=\"hd9kit-who\"\u003e\n\u003cimg class=\"hd9kit-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hd9kit-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hd9kit-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267427183,"sku":"H3001032","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-upgrade-kit.jpg?v=1790068172"},{"product_id":"huum-uku-surface-mounting-frame","title":"HUUM UKU Surface Mounting Frame | Glass, Mirror and Gold Panels","description":"\u003cstyle\u003e.hukufrm{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hukufrm 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class=\"hukufrm\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hukufrm-c\"\u003e\n\u003cp class=\"hukufrm-eyebrow\"\u003eInstallation accessory\u003c\/p\u003e\n\u003ch2\u003eHUUM UKU Surface Mounting Frame\u003c\/h2\u003e\n\u003cp class=\"hukufrm-lead\"\u003eThe UKU Glass, Mirror and Gold panels are made to sit recessed in the wall, in a pocket about 2.6 x 4.1 x 1.1 in (65 x 105 x 27 mm). Where the wall cannot be cut, this frame lets the panel mount on the surface instead.\u003c\/p\u003e\n\u003cp\u003eThe frame is metal with a black painted finish. The panel's rear housing goes into the frame with the screw holes lined up, the bent edges toward the panel and the cable opening toward the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e UKU Glass, UKU Mirror and UKU Gold control panels. The classic black and wood UKU panels mount on the wall without it.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hukufrm-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-surface-mounting-frame.jpg?width=1200\" alt=\"HUUM surface mounting frame for UKU Glass, Mirror and Gold panels\" loading=\"eager\" width=\"1200\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM UKU Surface Mounting Frame, as HUUM supplies it.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cdiv class=\"hukufrm-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hukufrm-lbl\"\u003eFits\u003c\/p\u003e\n\u003cp class=\"hukufrm-big\"\u003eHUUM UKU Glass, Mirror, Gold\u003c\/p\u003e\n\u003cp\u003eRead the model from the heater’s rating plate before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hukufrm-lbl\"\u003eFinish\u003c\/p\u003e\n\u003cp class=\"hukufrm-big\"\u003eBlack painted metal\u003c\/p\u003e\n\u003cp\u003eHUUM's published finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hukufrm-lbl\"\u003eControl panel\u003c\/p\u003e\n\u003cp class=\"hukufrm-big\"\u003eNot included\u003c\/p\u003e\n\u003cp\u003eSold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukufrm-tinted\" id=\"fit\"\u003e\n\u003cdiv class=\"hukufrm-c\"\u003e\n\u003cp class=\"hukufrm-eyebrow\"\u003eBefore you order\u003c\/p\u003e\n\u003ch2\u003eWhich controls this surface mounting frame fits\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"specs\"\u003e\n\u003cdiv class=\"hukufrm-c\"\u003e\n\u003cp class=\"hukufrm-eyebrow\"\u003eReference\u003c\/p\u003e\n\u003ch2\u003eHUUM UKU Surface Mounting Frame specifications\u003c\/h2\u003e\n\u003cp class=\"hukufrm-lead\"\u003eHUUM's own figures for this part.\u003c\/p\u003e\n\u003cdiv class=\"hukufrm-tw\"\u003e\u003ctable class=\"hukufrm-spec\"\u003e\n\u003ccaption\u003eHUUM UKU Surface Mounting Frame reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH310302\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU Glass, Mirror, Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack painted metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl panel\u003c\/th\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukufrm-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hukufrm-c\"\u003e\n\u003cp class=\"hukufrm-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM UKU Surface Mounting Frame questions buyers ask\u003c\/h2\u003e\n\u003cdiv class=\"hukufrm-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich controls does this fit?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eUKU Glass, UKU Mirror and UKU Gold control panels.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does it do?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eWhere the wall cannot be cut, this frame lets the panel mount on the surface instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does it attach?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe panel's rear housing drops into it. Line up the screw holes, turn the bent edges toward the panel and the cable opening toward the wall.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eThe frame is metal with a black painted finish.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the part number?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eH310302.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it covered by HUUM's warranty?\u003c\/summary\u003e\u003cdiv class=\"fb\"\u003e\u003cp\u003eHUUM's warranty lists its accessories among the exclusions, so this is sold as a part rather than a warranted item. Tell us if something arrives damaged and we take it up with the supplier.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hukufrm-close\" id=\"order\"\u003e\n\u003cdiv class=\"hukufrm-c\"\u003e\n\u003cp class=\"hukufrm-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eCheck the model before you order\u003c\/h2\u003e\n\u003cp\u003eTell us which UKU panel you have and we will confirm this surface mounting frame suits it. The glass, mirror and gold panels are the recessed ones; black and wood mount without it.\u003c\/p\u003e\n\u003cdiv class=\"hukufrm-who\"\u003e\n\u003cimg class=\"hukufrm-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hukufrm-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hukufrm-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267492719,"sku":"H310302","price":103.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-surface-mounting-frame.jpg?v=1790068179"},{"product_id":"huum-drop-4-electric-sauna-heater","title":"HUUM DROP 4 4.5kW Electric Sauna Heater","description":"\u003cstyle\u003e.hdrop4{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop4 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table.hdrop4-cmp thead th.hdrop4-me .hdrop4-cmp-h{color:#C3B6A5}.hdrop4 table.hdrop4-cmp thead th.hdrop4-me .hdrop4-cmp-m{color:#fff}.hdrop4 table.hdrop4-cmp thead th{background:var(--fill);color:var(--ink);font-size:11px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--edge)}.hdrop4 table.hdrop4-cmp thead th.hdrop4-me{background:var(--dark);color:#fff}.hdrop4 table.hdrop4-cmp td.hdrop4-me{background:var(--hl);font-weight:600;color:var(--ink)}.hdrop4 table.hdrop4-cmp td:first-child{color:var(--sub)}.hdrop4 .hdrop4-ladder td:last-child{text-align:right;white-space:nowrap;color:var(--sub)}.hdrop4 .hdrop4-ladder .hdrop4-kw{font-weight:700;color:var(--ink);font-size:17px;white-space:nowrap}.hdrop4 .hdrop4-ladder tr.hdrop4-on td{background:var(--hl)}.hdrop4 .hdrop4-ladder .hdrop4-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;background:var(--accent);color:#fff;padding:3px 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1fr;gap:32px;align-items:start}.hdrop4 .hdrop4-split\u003efigure img{max-height:440px;object-fit:cover;width:100%}.hdrop4 .hdrop4-pairup\u003efigure img{max-height:320px;object-fit:cover;width:100%}.hdrop4 .hdrop4-pairup\u003ediv\u003e.hdrop4-tw{margin-top:0}.hdrop4 blockquote cite{display:block;margin-top:8px}.hdrop4 figcaption{font-size:13.5px;color:var(--sub);margin-top:8px;line-height:1.5}.hdrop4 .hdrop4-more{margin:24px 0 0}.hdrop4 .hdrop4-more\u003esummary{font-size:15.5px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;padding:14px var(--gut);background:var(--fill);border:1px solid var(--warm);border-radius:var(--r-lg);position:relative}.hdrop4 .hdrop4-more\u003esummary::-webkit-details-marker{display:none}.hdrop4 .hdrop4-more\u003esummary::after{content:\"\";position:absolute;right:var(--gut);top:20px;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}.hdrop4 .hdrop4-more[open]\u003esummary::after{transform:rotate(225deg)}.hdrop4 .hdrop4-rl{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 8px !important}@media screen and (max-width:840px){}.hdrop4 .hdrop4-faq{border-top:1px solid var(--line);margin-top:16px}.hdrop4 .hdrop4-faq details{border-bottom:1px solid var(--line)}.hdrop4 .hdrop4-faq summary{cursor:pointer;padding:17px 36px 17px 0;position:relative;list-style:none;font-size:17px;font-weight:600;color:var(--ink)}.hdrop4 .hdrop4-faq summary::-webkit-details-marker{display:none}.hdrop4 .hdrop4-faq summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hdrop4 .hdrop4-faq details[open] summary::after{transform:rotate(225deg)}.hdrop4 .hdrop4-faq .hdrop4-fb{padding:0 0 18px;max-width:68ch}.hdrop4 .hdrop4-faq .hdrop4-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hdrop4 .hdrop4-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hdrop4 .hdrop4-close h2{color:#fff;max-width:22ch}.hdrop4 .hdrop4-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hdrop4 .hdrop4-close .hdrop4-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hdrop4 .hdrop4-close .hdrop4-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hdrop4 .hdrop4-close .hdrop4-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hdrop4 .hdrop4-close .hdrop4-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hdrop4 .hdrop4-close .hdrop4-who span{display:block}.hdrop4 .hdrop4-c .hdrop4-btn,.hdrop4 .hdrop4-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hdrop4 .hdrop4-c .hdrop4-btn:hover,.hdrop4 .hdrop4-btn:hover{background:var(--ink);color:#fff}.hdrop4 .hdrop4-close .hdrop4-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hdrop4 .hdrop4-close .hdrop4-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hdrop4 .hdrop4-pairup{grid-template-columns:1fr;gap:24px}.hdrop4 .hdrop4-chk{grid-template-columns:1fr}.hdrop4 .hdrop4-vidrow{flex-direction:column;align-items:stretch}.hdrop4 .hdrop4-vid{--cap:380px;align-self:center}.hdrop4 .hdrop4-vidrow{gap:24px}.hdrop4 .hdrop4-c{padding:0 16px}.hdrop4 section{padding:40px 0}.hdrop4 section:first-of-type{padding-top:20px}.hdrop4 h2{font-size:23px}.hdrop4 p.hdrop4-lead{font-size:17px}.hdrop4 .hdrop4-stat3{grid-template-columns:1fr}.hdrop4 .hdrop4-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hdrop4 .hdrop4-stat3\u003ediv:last-child{border-bottom:0}.hdrop4 .hdrop4-split{grid-template-columns:1fr;gap:24px}.hdrop4 .hdrop4-buy{grid-template-columns:1fr}.hdrop4 .hdrop4-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hdrop4 .hdrop4-toc\u003esummary{display:none}.hdrop4 .hdrop4-toc ol{display:grid !important}}@media screen and (max-width:560px){.hdrop4 .hdrop4-ladder thead{position:absolute;left:-9999px}.hdrop4 .hdrop4-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hdrop4 .hdrop4-ladder tr.hdrop4-on{background:var(--hl)}.hdrop4 .hdrop4-ladder td{display:block;border:0;padding:0}.hdrop4 .hdrop4-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hdrop4 .hdrop4-hl td,.hdrop4 .hdrop4-hl th,.hdrop4 .hdrop4-ladder tr.hdrop4-on td,.hdrop4 table.hdrop4-cmp td.hdrop4-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hdrop4 table.hdrop4-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hdrop4 table th,.rte .hdrop4 table td{padding:11px var(--gut)}.hdrop4 .hdrop4-ladder th:last-child,.hdrop4 .hdrop4-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hdrop4 .hdrop4-buy{align-items:start}.hdrop4 .hdrop4-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hdrop4 table.hdrop4-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hdrop4 table.hdrop4-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hdrop4 .hdrop4-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hdrop4 table.hdrop4-spec th,.hdrop4 table.hdrop4-spec td{display:block;width:auto}.hdrop4 table.hdrop4-spec th{border-bottom:0;padding-bottom:0}}.hdrop4 .hdrop4-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hdrop4 .hdrop4-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop4 .hdrop4-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop4 .hdrop4-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop4 .hdrop4-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop4 .hdrop4-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop4 .hdrop4-close p.hdrop4-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop4 .hdrop4-stat3 a{color:var(--bright)}.hdrop4 .hdrop4-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop4 .hdrop4-cmp thead a .hdrop4-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop4 .hdrop4-ladder.hdrop4-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop4 .hdrop4-ladder.hdrop4-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop4 .hdrop4-tw + p,.hdrop4 .hdrop4-tw + h3,.hdrop4 .hdrop4-warn + p,.hdrop4 .hdrop4-warn + h3,.hdrop4 .hdrop4-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdrop4\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cdetails class=\"hdrop4-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop4-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eThe small room heater\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM DROP 4 is a 4.5 kW wall mounted electric sauna heater for rooms of 106 to 248 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eThe smallest DROP, for rooms from 106 to 248 cubic feet. It suits a converted closet or a two person cabin, where a floor standing heater would take the space you wanted to sit in.\u003c\/p\u003e\n    \u003cp\u003eThe DROP hangs on the wall as an upright open cradle of stone. The 3 elements run through the stone rather than behind a panel, so the stone is the thing you see, and HUUM rates this size for 106 to 248 cubic feet at 240 volts.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop4-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hdrop4-big\"\u003e106 to 248 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick. HUUM does not say whether a glass door counts, so counting it is the cautious choice, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop4-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hdrop4-big\"\u003e18.75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable. On 208 volts it draws 16.35 A and the manual drops to a 20 A breaker. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop4-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hdrop4-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 121.3 lb (55 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-vidrow\"\u003e\n    \u003cdiv class=\"hdrop4-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hdrop4-vidbody\"\u003e\n    \u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hdrop4-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM DROP 4 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height: a 7 by 5 room with a 7 foot ceiling is 35 square feet and 245 cubic feet. Pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the DROP 4 for \u003cstrong\u003e106 to 248 cubic feet\u003c\/strong\u003e on a 240 volt supply.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer and most buyers forget them. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass in the room. The result is your adjusted cubic feet, and that is the number HUUM's range refers to. A single glass door is often enough to push a borderline room up a model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-ladder hdrop4-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hdrop4-on\"\u003e\n\u003ctd class=\"hdrop4-kw\"\u003eDROP 4 \u003cspan class=\"hdrop4-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft. at 240 V, 89 to 177 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4-kw\"\u003eDROP 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4-kw\"\u003eDROP 7\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft. at 240 V, 177 to 301 at 208 V\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4-kw\"\u003eDROP 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the DROP 4\u003c\/h3\u003e\n    \u003cp\u003eTake a small indoor sauna 6 feet by 5 feet with a 7 foot ceiling. That is 30 square feet of floor and 210 cubic feet, comfortably inside this heater's 106 to 248. Now add a full glass door, about 13 square feet: at 3.3 cubic feet a square foot that adds roughly 43, so the room behaves like 253 cubic feet and has just left the DROP 4's range. That is how narrow the margin is on a small room, and why the door matters more here than on any other size in the range.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a DROP is 75 inches (1900 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. HUUM advises lowering a taller ceiling into its recommended range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eWhat makes it a DROP\u003c\/p\u003e\n    \u003ch2\u003eWhy the DROP 4 looks like a basket of stone\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eMost electric heaters hide their elements behind a steel skin and vent hot air off the top. The DROP does the opposite, and that is the whole reason to choose one.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n        \u003cp\u003eAbout 121.3 lb (55 kg) of stone sits in an open cradle with the 3 elements running through it. Ladle onto the stone, never onto the metal, and the water meets hot rock across the whole face of the heater rather than one small tray, so the steam arrives soft and even rather than sharp.\u003c\/p\u003e\n        \u003ch3\u003eIt takes no floor\u003c\/h3\u003e\n        \u003cp\u003eThe heater hangs on the frame in the box and stands 23.2 inches tall by 15.4 wide and 13.2 deep, so it uses wall rather than floor. In a small room that is usually the difference between a bench you can lie on and one you cannot.\u003c\/p\u003e\n        \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n        \u003cp\u003eWith the \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eDROP embedding flange\u003c\/a\u003e the heater drops into a bench or the floor, as long as at least 15 inches of it stays above the surface. The flange covers the cut edges.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hdrop4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-studio.jpg?v=1790068283\u0026amp;width=1200\" alt=\"HUUM DROP wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe DROP hangs on a wall frame and carries its stone in the open.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the DROP 4 gives up, and what it does not\u003c\/h3\u003e\n    \u003cp\u003eAgainst the rest of the range the DROP 4 gives up room volume and nothing else. It carries the same stone load as the 9 kW, about 121.3 pounds, on the same wall frame, with the same controls. A small sauna with that much stone behaves like a larger one: the steam stays soft and the room holds temperature through the door opening.\u003c\/p\u003e\n\u003cp\u003eThe thing to check before you buy is your supply voltage. On 208 volts this heater makes 3.4 kW instead of 4.5 and its rated room falls to 89 to 177 cubic feet. On a 208 volt supply a room near 200 cubic feet needs the DROP 6 instead.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003e\u003cb\u003eThe heat diverter is in the carton on every DROP size, not just the 9 kW.\u003c\/b\u003e It protects the wall behind the heater and the corner of the ceiling. That changed with HUUM's April 2026 manual, and several dealer listings still show the old arrangement.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working DROP 4 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eA sauna heater is three purchases, and the other two are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hdrop4-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page. Ships by parcel carrier.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-drop-safety-rail\"\u003eDROP safety rail\u003c\/a\u003e. HUUM adds that when the railing is a flammable material such as wood, the heater's minimum clearances still have to be kept to the railing itself. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n    \u003cp\u003eA \u003ca href=\"\/products\/huum-drop-drip-tray\"\u003edrip tray\u003c\/a\u003e protects the floor under the heater from stone dust and splash. The \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-drop-4-sauna-heater-package\"\u003eHUUM DROP 4 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM DROP 4 needs\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-ladder hdrop4-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hdrop4-on\"\u003e\n\u003ctd class=\"hdrop4-kw\"\u003e240 V\u003cspan class=\"hdrop4-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4.5 kW, 18.75 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hdrop4-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e3.4 kW, 16.35 A, 20 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e89 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and any junction box inside the sauna must be waterproof and no higher than 19 11\/16 inches off the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide. Settle it with your electrician at the rough-in, and ask about nuisance tripping while you are there.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 4 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM DROP 4 can go\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eA wall mounted sauna heater still has clearances, and every DROP size has its own set, because a hotter heater needs more room around it. These are this model's figures, and they assume the stone bed is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, DROP 4\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the side wall\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBelow the heater, to the floor\u003c\/th\u003e\n\u003ctd\u003e3 15\/16 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight on the wall\u003c\/th\u003e\n\u003ctd\u003e24.3 lb empty. HUUM gives 143.3 lb for a DROP with its stone in.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's Table 1 carries further setting-out dimensions that only make sense against the manual's own drawing, which we can send before you order.\u003c\/p\u003e\n    \u003cp\u003eThe frame carries the whole loaded weight, so check what is in that stud bay before the lining boards go on, and run the cable at the same time.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-in_sauna.jpg?width=1200\" alt=\"HUUM DROP in a sauna with the HUUM DROP safety rail (sold separately) fitted\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the DROP 4 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 4.5 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 121.3 lb (55 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for natural stone 2 to 4 inches (5 to 10 cm) across, and supplies olivine diabase in 33 pound boxes. Decorative stone is not a substitute: it stores little heat, breaks up, and the pieces block the airflow the elements depend on.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eHUUM films the job for the DROP; ask us and we will send you the link to its stone placement film.\u003c\/p\u003e\n    \u003cp\u003eWash the stone first. Lay it piece by piece rather than pouring it in, biggest at the bottom and the sides, smaller pieces wedging them in place. Pack the outer face tightly enough that no element shows through, but leave air paths inside. \u003c\/p\u003e\n    \n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e The clearances on this page assume the elements are covered by stone. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eThe DROP 4 takes the same four boxes as the 9 kW. In a room this size that is a lot of thermal mass for the volume, which is why a small sauna with a DROP holds its heat better than the kilowatts alone suggest.\u003c\/p\u003e\n    \u003ch3\u003eHUUM's own warnings\u003c\/h3\u003e\n    \u003cp\u003eWorth reading before the first session, in HUUM's words: the heater may be used only when it has been correctly filled with stones; do not cover it, because that causes a fire hazard; do not touch a working heater, because it causes burns; never make steam with a water hose; use fragrances and oils only in the steam water, because poured onto the stones undiluted they can catch fire; sauna doors should always open outward; never ladle water while someone is close to the heater, because the steam can burn; and do not leave small children in the sauna unattended. HUUM adds that sudden cooling after a sauna is not recommended for people in poor health, who should ask a doctor first.\u003c\/p\u003e\n    \u003ch3\u003eLooking after it\u003c\/h3\u003e\n    \u003cp\u003eHUUM asks for a visual check after about 100 hours of use or at least once a year, a rearrange and replacement of any cracked pieces at about 200 hours, and all of it replaced at about 400 hours. Stone crumbles as it cycles, and the dust is what eventually blocks the airflow.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-stones_detail.jpg?width=1200\" alt=\"Stones and steam on the HUUM DROP sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the DROP 4 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e4.5 kW x 0.183 = about 0.82 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 2.47 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 7 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the heater is off more than it is on, so the real bill lands under them. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e A sauna that leaks heat runs the elements continuously, which costs more and wears them out sooner.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the DROP 4 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop4-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hdrop4-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003eHeater mounting plate\u003c\/li\u003e\n\u003cli\u003eReflector\u003c\/li\u003e\n\u003cli\u003eHeating element spacers\u003c\/li\u003e\n\u003cli\u003eHeating element retainer\u003c\/li\u003e\n\u003cli\u003eHeat diverter with fastenings\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater; the rail, drip tray and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 4 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hdrop4-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-spec\"\u003e\n\u003ccaption\u003eFrom the DROP 2.0 User Manual US v8 (April 2026), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e4.5 kW at 240 V, 3.4 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e106 to 248 adjusted cu. ft. at 240 V, 89 to 177 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e75 in (1900 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e18.75 A at 240 V, 16.35 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 20 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating elements\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight with stone\u003c\/th\u003e\n\u003ctd\u003e143.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hdrop4-tw\"\u003e\u003ctable class=\"hdrop4-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1001052\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e24.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 4 against the rest of the DROP range\u003c\/h2\u003e\n    \u003cp class=\"hdrop4-lead\"\u003eAll four take the same wall frame, the same stone load and the same controls. The choice is room volume and the circuit you can supply. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop4-tw hdrop4-tw--scroll\"\u003e\u003ctable class=\"hdrop4-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hdrop4-me\"\u003e\n\u003cspan class=\"hdrop4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-m\"\u003eDROP 4\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-m\"\u003eDROP 6\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-7-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-m\"\u003eDROP 7\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-here\"\u003e7.5 kW, 248 to 389 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-9-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-m\"\u003eDROP 9\u003c\/span\u003e\u003cspan class=\"hdrop4-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e4.5 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e18.75 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e31.25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElements\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hdrop4-me\"\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a DROP is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe DROP tops out at 9 kW and hangs on a wall. For a room above 460 cubic feet, or a commercial room that reheats group after group, a STEEL at about 330 pounds of stone, or a HIVE at 528, holds temperature better. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hdrop4-c\"\u003e\n    \u003cp class=\"hdrop4-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 4 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop4-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM DROP 4 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eHUUM rates it for 106 to 248 cubic feet on 240 volts, or 89 to 177 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile. HUUM does not say whether a glass door counts, so counting it is the cautious choice, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 4 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eNo. Every HUUM heater needs a separate certified control, bought separately. The control unit goes outside the hot room, its own manual sets out which panel finishes may be mounted inside, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM DROP 4 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 121.3 lb (55 kg) and HUUM asks for natural stone 2 to 4 inches across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM DROP 4 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eOn 240 volts it draws 18.75 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 16.35 A, a 20 A breaker and 10 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM DROP 4 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM DROP 4 myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 4 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide, so settle it with your electrician before the rough-in.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 4 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. Every DROP runs from the UKU's main module on its own. Dealer listings quote several different thresholds for the box, which is where the confusion comes from.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow long does the HUUM DROP 4 take to heat a sauna?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eHUUM's manual says about an hour in a properly insulated room with a correctly sized heater, with the stone reaching throwing temperature at about the same time as the air. A leaky room or an undersized heater takes longer and costs more to run.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM DROP 4?\u003c\/summary\u003e\u003cdiv class=\"hdrop4-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop4-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop4-c\"\u003e\n\u003cp class=\"hdrop4-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 4 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hdrop4-who\"\u003e\n\u003cimg class=\"hdrop4-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop4-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop4-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514267885935,"sku":"H1001052","price":1334.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-studio.jpg?v=1790068283"},{"product_id":"huum-drop-7-electric-sauna-heater","title":"HUUM DROP 7 7.5kW Electric Sauna Heater","description":"\u003cstyle\u003e.hdrop7{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop7 *{box-sizing:border-box}.hdrop7 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.hdrop7-stat3\u003ediv:last-child{border-bottom:0}.hdrop7 .hdrop7-split{grid-template-columns:1fr;gap:24px}.hdrop7 .hdrop7-buy{grid-template-columns:1fr}.hdrop7 .hdrop7-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hdrop7 .hdrop7-toc\u003esummary{display:none}.hdrop7 .hdrop7-toc ol{display:grid !important}}@media screen and (max-width:560px){.hdrop7 .hdrop7-ladder thead{position:absolute;left:-9999px}.hdrop7 .hdrop7-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hdrop7 .hdrop7-ladder tr.hdrop7-on{background:var(--hl)}.hdrop7 .hdrop7-ladder td{display:block;border:0;padding:0}.hdrop7 .hdrop7-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hdrop7 .hdrop7-hl td,.hdrop7 .hdrop7-hl th,.hdrop7 .hdrop7-ladder tr.hdrop7-on td,.hdrop7 table.hdrop7-cmp td.hdrop7-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hdrop7 table.hdrop7-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hdrop7 table th,.rte .hdrop7 table td{padding:11px var(--gut)}.hdrop7 .hdrop7-ladder th:last-child,.hdrop7 .hdrop7-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hdrop7 .hdrop7-buy{align-items:start}.hdrop7 .hdrop7-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hdrop7 table.hdrop7-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hdrop7 table.hdrop7-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hdrop7 .hdrop7-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hdrop7 table.hdrop7-spec th,.hdrop7 table.hdrop7-spec td{display:block;width:auto}.hdrop7 table.hdrop7-spec th{border-bottom:0;padding-bottom:0}}.hdrop7 .hdrop7-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hdrop7 .hdrop7-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop7 .hdrop7-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop7 .hdrop7-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop7 .hdrop7-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop7 .hdrop7-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop7 .hdrop7-close p.hdrop7-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop7 .hdrop7-stat3 a{color:var(--bright)}.hdrop7 .hdrop7-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop7 .hdrop7-cmp thead a .hdrop7-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop7 .hdrop7-ladder.hdrop7-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop7 .hdrop7-ladder.hdrop7-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop7 .hdrop7-tw + p,.hdrop7 .hdrop7-tw + h3,.hdrop7 .hdrop7-warn + p,.hdrop7 .hdrop7-warn + h3,.hdrop7 .hdrop7-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdrop7\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cdetails class=\"hdrop7-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop7-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eFive elements, not three\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM DROP 7 is a 7.5 kW wall mounted electric sauna heater for rooms of 248 to 389 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eThe DROP 7 is where the range changes inside: five heating elements instead of three, laid through the same open stone cradle, for rooms from 248 to 389 cubic feet.\u003c\/p\u003e\n    \u003cp\u003eThe DROP hangs on the wall as an upright open cradle of stone. The 5 elements run through the stone rather than behind a panel, so the stone is the thing you see, and HUUM rates this size for 248 to 389 cubic feet at 240 volts.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop7-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hdrop7-big\"\u003e248 to 389 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick. HUUM does not say whether a glass door counts, so counting it is the cautious choice, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop7-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hdrop7-big\"\u003e31.25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 40 A breaker and thicker 8 AWG cable, a step up from the DROP 6. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop7-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hdrop7-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 121.3 lb (55 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-vidrow\"\u003e\n    \u003cdiv class=\"hdrop7-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hdrop7-vidbody\"\u003e\n    \u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hdrop7-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM DROP 7 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height: a 7 by 5 room with a 7 foot ceiling is 35 square feet and 245 cubic feet. Pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the DROP 7 for \u003cstrong\u003e248 to 389 cubic feet\u003c\/strong\u003e on a 240 volt supply.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer and most buyers forget them. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass in the room. The result is your adjusted cubic feet, and that is the number HUUM's range refers to. A single glass door is often enough to push a borderline room up a model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-ladder hdrop7-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7-kw\"\u003eDROP 4\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft. at 240 V, 89 to 177 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7-kw\"\u003eDROP 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop7-on\"\u003e\n\u003ctd class=\"hdrop7-kw\"\u003eDROP 7 \u003cspan class=\"hdrop7-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft. at 240 V, 177 to 301 at 208 V\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7-kw\"\u003eDROP 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the DROP 7\u003c\/h3\u003e\n    \u003cp\u003eTake a room 8 feet by 6.5 feet with a 7 foot ceiling: 52 square feet and 364 cubic feet, inside this heater's 248 to 389. Add a full glass door, take 13 square feet as an example and measure your own, and the room behaves like 407 cubic feet, which is past the DROP 7 and into the DROP 9. On a room this size the adjustment is worth doing carefully, because the step up also changes the breaker from 40 to 50 amps.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a DROP is 75 inches (1900 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. HUUM advises lowering a taller ceiling into its recommended range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eWhat makes it a DROP\u003c\/p\u003e\n    \u003ch2\u003eWhy the DROP 7 looks like a basket of stone\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eMost electric heaters hide their elements behind a steel skin and vent hot air off the top. The DROP does the opposite, and that is the whole reason to choose one.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n        \u003cp\u003eAbout 121.3 lb (55 kg) of stone sits in an open cradle with the 5 elements running through it. Ladle onto the stone, never onto the metal, and the water meets hot rock across the whole face of the heater rather than one small tray, so the steam arrives soft and even rather than sharp.\u003c\/p\u003e\n        \u003ch3\u003eIt takes no floor\u003c\/h3\u003e\n        \u003cp\u003eThe heater hangs on the frame in the box and stands 23.2 inches tall by 15.4 wide and 13.2 deep, so it uses wall rather than floor. In a small room that is usually the difference between a bench you can lie on and one you cannot.\u003c\/p\u003e\n        \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n        \u003cp\u003eWith the \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eDROP embedding flange\u003c\/a\u003e the heater drops into a bench or the floor, as long as at least 15 inches of it stays above the surface. The flange covers the cut edges.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hdrop7-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-studio.jpg?v=1790068297\u0026amp;width=1200\" alt=\"HUUM DROP wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe DROP hangs on a wall frame and carries its stone in the open.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the two extra elements change\u003c\/h3\u003e\n    \u003cp\u003eThe 4 and the 6 carry three elements. The 7 and the 9 carry five, held by a retainer across the cradle, so the heat is spread through more of the stone bed and a bigger room comes up to temperature without a bigger cabinet on the wall.\u003c\/p\u003e\n\u003cp\u003eThey also change the stone work. HUUM's manual says to keep stone out from under the retainer and to fill between the elements instead, packing the outer face tightly enough that no element shows through.\u003c\/p\u003e\n\u003cp\u003eThe circuit steps up here too: HUUM's manual calls for a 40 amp breaker and 8 AWG cable, against 30 amps and 10 AWG for the DROP 6.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003e\u003cb\u003eThe heat diverter is in the carton on every DROP size, not just the 9 kW.\u003c\/b\u003e It protects the wall behind the heater and the corner of the ceiling. That changed with HUUM's April 2026 manual, and several dealer listings still show the old arrangement.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working DROP 7 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eA sauna heater is three purchases, and the other two are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hdrop7-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page. Ships by parcel carrier.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-drop-safety-rail\"\u003eDROP safety rail\u003c\/a\u003e. HUUM adds that when the railing is a flammable material such as wood, the heater's minimum clearances still have to be kept to the railing itself. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n    \u003cp\u003eA \u003ca href=\"\/products\/huum-drop-drip-tray\"\u003edrip tray\u003c\/a\u003e protects the floor under the heater from stone dust and splash. The \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eHUUM DROP 7 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM DROP 7 needs\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-ladder hdrop7-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hdrop7-on\"\u003e\n\u003ctd class=\"hdrop7-kw\"\u003e240 V\u003cspan class=\"hdrop7-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e7.5 kW, 31.25 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hdrop7-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e5.6 kW, 26.92 A, 30 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 301 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and any junction box inside the sauna must be waterproof and no higher than 19 11\/16 inches off the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide. Settle it with your electrician at the rough-in, and ask about nuisance tripping while you are there.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 7 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM DROP 7 can go\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eA wall mounted sauna heater still has clearances, and every DROP size has its own set, because a hotter heater needs more room around it. These are this model's figures, and they assume the stone bed is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, DROP 7\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the side wall\u003c\/th\u003e\n\u003ctd\u003e5.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBelow the heater, to the floor\u003c\/th\u003e\n\u003ctd\u003e3 15\/16 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight on the wall\u003c\/th\u003e\n\u003ctd\u003e26.5 lb empty. HUUM gives 143.3 lb for a DROP with its stone in.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's Table 1 carries further setting-out dimensions that only make sense against the manual's own drawing, which we can send before you order.\u003c\/p\u003e\n    \u003cp\u003eThe frame carries the whole loaded weight, so check what is in that stud bay before the lining boards go on, and run the cable at the same time.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop7-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-in_sauna.jpg?width=1200\" alt=\"HUUM DROP in a sauna with the HUUM DROP safety rail (sold separately) fitted\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the DROP 7 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 7.5 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 121.3 lb (55 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for natural stone 2 to 4 inches (5 to 10 cm) across, and supplies olivine diabase in 33 pound boxes. Decorative stone is not a substitute: it stores little heat, breaks up, and the pieces block the airflow the elements depend on.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eHUUM films the job for the DROP; ask us and we will send you the link to its stone placement film.\u003c\/p\u003e\n    \u003cp\u003eWash the stone first. Lay it piece by piece rather than pouring it in, biggest at the bottom and the sides, smaller pieces wedging them in place. Pack the outer face tightly enough that no element shows through, but leave air paths inside. Keep the retainer clear.\u003c\/p\u003e\n    \u003cp\u003eThis size carries five elements and a retainer. HUUM's manual says to keep stone out from under the retainer, and to fill between and around the elements instead.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e The clearances on this page assume the elements are covered by stone. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eFour boxes, the same as the smaller DROPs, but laid around five elements instead of three. Keep the stone clear of the retainer and pack the outer face so no element is visible.\u003c\/p\u003e\n    \u003ch3\u003eHUUM's own warnings\u003c\/h3\u003e\n    \u003cp\u003eWorth reading before the first session, in HUUM's words: the heater may be used only when it has been correctly filled with stones; do not cover it, because that causes a fire hazard; do not touch a working heater, because it causes burns; never make steam with a water hose; use fragrances and oils only in the steam water, because poured onto the stones undiluted they can catch fire; sauna doors should always open outward; never ladle water while someone is close to the heater, because the steam can burn; and do not leave small children in the sauna unattended. HUUM adds that sudden cooling after a sauna is not recommended for people in poor health, who should ask a doctor first.\u003c\/p\u003e\n    \u003ch3\u003eLooking after it\u003c\/h3\u003e\n    \u003cp\u003eHUUM asks for a visual check after about 100 hours of use or at least once a year, a rearrange and replacement of any cracked pieces at about 200 hours, and all of it replaced at about 400 hours. Stone crumbles as it cycles, and the dust is what eventually blocks the airflow.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop7-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-stones_detail.jpg?width=1200\" alt=\"Stones and steam on the HUUM DROP sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the DROP 7 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e7.5 kW x 0.183 = about 1.37 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.12 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 12 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the heater is off more than it is on, so the real bill lands under them. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e A sauna that leaks heat runs the elements continuously, which costs more and wears them out sooner.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the DROP 7 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop7-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hdrop7-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003eHeater mounting plate\u003c\/li\u003e\n\u003cli\u003eReflector\u003c\/li\u003e\n\u003cli\u003eHeating element spacers\u003c\/li\u003e\n\u003cli\u003eHeating element retainer\u003c\/li\u003e\n\u003cli\u003eHeat diverter with fastenings\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater; the rail, drip tray and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 7 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hdrop7-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-spec\"\u003e\n\u003ccaption\u003eFrom the DROP 2.0 User Manual US v8 (April 2026), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e7.5 kW at 240 V, 5.6 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e248 to 389 adjusted cu. ft. at 240 V, 177 to 301 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e75 in (1900 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e31.25 A at 240 V, 26.92 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e40 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating elements\u003c\/th\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight with stone\u003c\/th\u003e\n\u003ctd\u003e143.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e5.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hdrop7-tw\"\u003e\u003ctable class=\"hdrop7-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1001082\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e26.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 7 against the rest of the DROP range\u003c\/h2\u003e\n    \u003cp class=\"hdrop7-lead\"\u003eAll four take the same wall frame, the same stone load and the same controls. The choice is room volume and the circuit you can supply. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop7-tw hdrop7-tw--scroll\"\u003e\u003ctable class=\"hdrop7-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-4-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop7-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-m\"\u003eDROP 4\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-here\"\u003e4.5 kW, 106 to 248 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop7-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-m\"\u003eDROP 6\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hdrop7-me\"\u003e\n\u003cspan class=\"hdrop7-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-m\"\u003eDROP 7\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-9-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop7-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-m\"\u003eDROP 9\u003c\/span\u003e\u003cspan class=\"hdrop7-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e18.75 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e31.25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e40 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElements\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd class=\"hdrop7-me\"\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a DROP is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe DROP tops out at 9 kW and hangs on a wall. For a room above 460 cubic feet, or a commercial room that reheats group after group, a STEEL at about 330 pounds of stone, or a HIVE at 528, holds temperature better. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hdrop7-c\"\u003e\n    \u003cp class=\"hdrop7-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 7 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop7-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM DROP 7 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eHUUM rates it for 248 to 389 cubic feet on 240 volts, or 177 to 301 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile. HUUM does not say whether a glass door counts, so counting it is the cautious choice, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 7 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eNo. Every HUUM heater needs a separate certified control, bought separately. The control unit goes outside the hot room, its own manual sets out which panel finishes may be mounted inside, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM DROP 7 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 121.3 lb (55 kg) and HUUM asks for natural stone 2 to 4 inches across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM DROP 7 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eOn 240 volts it draws 31.25 A and HUUM specifies a 40 A breaker with 8 AWG cable. On 208 volts it is 26.92 A, a 30 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM DROP 7 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM DROP 7 myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 7 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide, so settle it with your electrician before the rough-in.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 7 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. Every DROP runs from the UKU's main module on its own. Dealer listings quote several different thresholds for the box, which is where the confusion comes from.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow long does the HUUM DROP 7 take to heat a sauna?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eHUUM's manual says about an hour in a properly insulated room with a correctly sized heater, with the stone reaching throwing temperature at about the same time as the air. A leaky room or an undersized heater takes longer and costs more to run.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM DROP 7?\u003c\/summary\u003e\u003cdiv class=\"hdrop7-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop7-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop7-c\"\u003e\n\u003cp class=\"hdrop7-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 7 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hdrop7-who\"\u003e\n\u003cimg class=\"hdrop7-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop7-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop7-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514268017007,"sku":"H1001082","price":1672.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-studio.jpg?v=1790068297"},{"product_id":"huum-drop-9-electric-sauna-heater","title":"HUUM DROP 9 9kW Electric Sauna Heater","description":"\u003cstyle\u003e.hdrop9{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop9 *{box-sizing:border-box}.hdrop9 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h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop9 .hdrop9-cmp thead a .hdrop9-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop9 .hdrop9-ladder.hdrop9-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop9 .hdrop9-ladder.hdrop9-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop9 .hdrop9-tw + p,.hdrop9 .hdrop9-tw + h3,.hdrop9 .hdrop9-warn + p,.hdrop9 .hdrop9-warn + h3,.hdrop9 .hdrop9-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hdrop9\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cdetails class=\"hdrop9-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop9-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eThe largest DROP\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM DROP 9 is a 9 kW wall mounted electric sauna heater for rooms of 283 to 460 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eNine kilowatts, for rooms from 283 to 460 cubic feet. It is the top of the DROP range, and the point where the panel rather than the room usually decides.\u003c\/p\u003e\n    \u003cp\u003eThe DROP hangs on the wall as an upright open cradle of stone. The 5 elements run through the stone rather than behind a panel, so the stone is the thing you see, and HUUM rates this size for 283 to 460 cubic feet at 240 volts.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop9-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hdrop9-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick. HUUM does not say whether a glass door counts, so counting it is the cautious choice, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop9-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hdrop9-big\"\u003e37.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable. Worth confirming your panel can carry it before you order. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hdrop9-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hdrop9-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 121.3 lb (55 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-vidrow\"\u003e\n    \u003cdiv class=\"hdrop9-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hdrop9-vidbody\"\u003e\n    \u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hdrop9-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM DROP 9 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height: a 7 by 5 room with a 7 foot ceiling is 35 square feet and 245 cubic feet. Pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the DROP 9 for \u003cstrong\u003e283 to 460 cubic feet\u003c\/strong\u003e on a 240 volt supply.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer and most buyers forget them. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass in the room. The result is your adjusted cubic feet, and that is the number HUUM's range refers to. A single glass door is often enough to push a borderline room up a model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-ladder hdrop9-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9-kw\"\u003eDROP 4\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft. at 240 V, 89 to 177 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9-kw\"\u003eDROP 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9-kw\"\u003eDROP 7\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft. at 240 V, 177 to 301 at 208 V\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop9-on\"\u003e\n\u003ctd class=\"hdrop9-kw\"\u003eDROP 9 \u003cspan class=\"hdrop9-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the DROP 9\u003c\/h3\u003e\n    \u003cp\u003eTake a room 9 feet by 7 feet with a 7 foot ceiling: 63 square feet and 441 cubic feet, inside this heater's 283 to 460. Add a full glass door, take 13 square feet as an example and measure your own, and the room behaves like about 484 cubic feet, which is past the top of the whole DROP range. At that point the answer is a floor standing heater, not a bigger DROP.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a DROP is 75 inches (1900 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. HUUM advises lowering a taller ceiling into its recommended range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eWhat makes it a DROP\u003c\/p\u003e\n    \u003ch2\u003eWhy the DROP 9 looks like a basket of stone\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eMost electric heaters hide their elements behind a steel skin and vent hot air off the top. The DROP does the opposite, and that is the whole reason to choose one.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n        \u003cp\u003eAbout 121.3 lb (55 kg) of stone sits in an open cradle with the 5 elements running through it. Ladle onto the stone, never onto the metal, and the water meets hot rock across the whole face of the heater rather than one small tray, so the steam arrives soft and even rather than sharp.\u003c\/p\u003e\n        \u003ch3\u003eIt takes no floor\u003c\/h3\u003e\n        \u003cp\u003eThe heater hangs on the frame in the box and stands 23.2 inches tall by 15.4 wide and 13.2 deep, so it uses wall rather than floor. In a small room that is usually the difference between a bench you can lie on and one you cannot.\u003c\/p\u003e\n        \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n        \u003cp\u003eWith the \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eDROP embedding flange\u003c\/a\u003e the heater drops into a bench or the floor, as long as at least 15 inches of it stays above the surface. The flange covers the cut edges.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hdrop9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-studio.jpg?v=1790068311\u0026amp;width=1200\" alt=\"HUUM DROP wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe DROP hangs on a wall frame and carries its stone in the open.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eThe DROP 9 is a panel question before it is a heater question\u003c\/h3\u003e\n    \u003cp\u003eThis heater draws 37.5 amps and HUUM's manual calls for a dedicated 50 amp breaker with 8 AWG cable. In an older house with a 100 amp service and an electric range already on it, that is often the line item that decides the project. Have an electrician look at the panel before you order, not after.\u003c\/p\u003e\n\u003cp\u003eIf the panel cannot carry it, the honest answer is usually a smaller room rather than a smaller heater: a DROP 7 in a room sized for a 9 runs flat out and still disappoints. On a 208 volt supply this heater makes 6.75 kW and is rated for 212 to 354 cubic feet, so a 208 volt building sizes from that row.\u003c\/p\u003e\n\u003cp\u003eAbove 460 cubic feet the DROP range stops. A HIVE, which stands on the floor and holds 528 pounds of stone, is the better answer.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003e\u003cb\u003eThe heat diverter is in the carton on every DROP size, not just the 9 kW.\u003c\/b\u003e It protects the wall behind the heater and the corner of the ceiling. That changed with HUUM's April 2026 manual, and several dealer listings still show the old arrangement.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working DROP 9 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eA sauna heater is three purchases, and the other two are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hdrop9-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page. Ships by parcel carrier.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-drop-safety-rail\"\u003eDROP safety rail\u003c\/a\u003e. HUUM adds that when the railing is a flammable material such as wood, the heater's minimum clearances still have to be kept to the railing itself. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n    \u003cp\u003eA \u003ca href=\"\/products\/huum-drop-drip-tray\"\u003edrip tray\u003c\/a\u003e protects the floor under the heater from stone dust and splash. The \u003ca href=\"\/products\/huum-drop-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eHUUM DROP 9 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM DROP 9 needs\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-ladder hdrop9-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hdrop9-on\"\u003e\n\u003ctd class=\"hdrop9-kw\"\u003e240 V\u003cspan class=\"hdrop9-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW, 37.5 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hdrop9-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e6.75 kW, 32.44 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and any junction box inside the sauna must be waterproof and no higher than 19 11\/16 inches off the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide. Settle it with your electrician at the rough-in, and ask about nuisance tripping while you are there.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. On the 9 kW DROP the certificate also requires the heat deflector to be fitted, and it is in the carton. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM DROP 9 can go\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eA wall mounted sauna heater still has clearances, and every DROP size has its own set, because a hotter heater needs more room around it. These are this model's figures, and they assume the stone bed is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, DROP 9\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the side wall\u003c\/th\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBelow the heater, to the floor\u003c\/th\u003e\n\u003ctd\u003e3 15\/16 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight on the wall\u003c\/th\u003e\n\u003ctd\u003e26.5 lb empty. HUUM gives 143.3 lb for a DROP with its stone in.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's Table 1 carries further setting-out dimensions that only make sense against the manual's own drawing, which we can send before you order.\u003c\/p\u003e\n    \u003cp\u003eThe frame carries the whole loaded weight, so check what is in that stud bay before the lining boards go on, and run the cable at the same time.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-in_sauna.jpg?width=1200\" alt=\"HUUM DROP in a sauna with the HUUM DROP safety rail (sold separately) fitted\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the DROP 9 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 9 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 121.3 lb (55 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for natural stone 2 to 4 inches (5 to 10 cm) across, and supplies olivine diabase in 33 pound boxes. Decorative stone is not a substitute: it stores little heat, breaks up, and the pieces block the airflow the elements depend on.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eHUUM films the job for the DROP; ask us and we will send you the link to its stone placement film.\u003c\/p\u003e\n    \u003cp\u003eWash the stone first. Lay it piece by piece rather than pouring it in, biggest at the bottom and the sides, smaller pieces wedging them in place. Pack the outer face tightly enough that no element shows through, but leave air paths inside. Keep the retainer clear.\u003c\/p\u003e\n    \u003cp\u003eThis size carries five elements and a retainer. HUUM's manual says to keep stone out from under the retainer, and to fill between and around the elements instead.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e The clearances on this page assume the elements are covered by stone. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eFour boxes, the same as the DROP 4. This is worth knowing if you are comparing the 9 kW against a floor standing heater: a STEEL holds about 330 pounds of stone and a HIVE 528, against 121.3 here, which is what lets those ride out a busy room.\u003c\/p\u003e\n    \u003ch3\u003eHUUM's own warnings\u003c\/h3\u003e\n    \u003cp\u003eWorth reading before the first session, in HUUM's words: the heater may be used only when it has been correctly filled with stones; do not cover it, because that causes a fire hazard; do not touch a working heater, because it causes burns; never make steam with a water hose; use fragrances and oils only in the steam water, because poured onto the stones undiluted they can catch fire; sauna doors should always open outward; never ladle water while someone is close to the heater, because the steam can burn; and do not leave small children in the sauna unattended. HUUM adds that sudden cooling after a sauna is not recommended for people in poor health, who should ask a doctor first.\u003c\/p\u003e\n    \u003ch3\u003eLooking after it\u003c\/h3\u003e\n    \u003cp\u003eHUUM asks for a visual check after about 100 hours of use or at least once a year, a rearrange and replacement of any cracked pieces at about 200 hours, and all of it replaced at about 400 hours. Stone crumbles as it cycles, and the dust is what eventually blocks the airflow.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hdrop9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-stones_detail.jpg?width=1200\" alt=\"Stones and steam on the HUUM DROP sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the DROP 9 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e9 kW x 0.183 = about 1.65 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 15 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the heater is off more than it is on, so the real bill lands under them. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e A sauna that leaks heat runs the elements continuously, which costs more and wears them out sooner.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the DROP 9 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop9-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hdrop9-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003eHeater mounting plate\u003c\/li\u003e\n\u003cli\u003eReflector\u003c\/li\u003e\n\u003cli\u003eHeating element spacers\u003c\/li\u003e\n\u003cli\u003eHeating element retainer\u003c\/li\u003e\n\u003cli\u003eHeat diverter with fastenings\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater; the rail, drip tray and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 9 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hdrop9-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-spec\"\u003e\n\u003ccaption\u003eFrom the DROP 2.0 User Manual US v8 (April 2026), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e9 kW at 240 V, 6.75 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e283 to 460 adjusted cu. ft. at 240 V, 212 to 354 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e75 in (1900 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e37.5 A at 240 V, 32.44 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 40 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeating elements\u003c\/th\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 121.3 lb (55 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e15.4 in W x 13.2 in D x 23.2 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight with stone\u003c\/th\u003e\n\u003ctd\u003e143.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hdrop9-tw\"\u003e\u003ctable class=\"hdrop9-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1001072\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e26.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 9 against the rest of the DROP range\u003c\/h2\u003e\n    \u003cp class=\"hdrop9-lead\"\u003eAll four take the same wall frame, the same stone load and the same controls. The choice is room volume and the circuit you can supply. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hdrop9-tw hdrop9-tw--scroll\"\u003e\u003ctable class=\"hdrop9-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-4-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-m\"\u003eDROP 4\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-here\"\u003e4.5 kW, 106 to 248 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-m\"\u003eDROP 6\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-drop-7-electric-sauna-heater\"\u003e\u003cspan class=\"hdrop9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-m\"\u003eDROP 7\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-here\"\u003e7.5 kW, 248 to 389 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hdrop9-me\"\u003e\n\u003cspan class=\"hdrop9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-m\"\u003eDROP 9\u003c\/span\u003e\u003cspan class=\"hdrop9-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e18.75 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e31.25 A\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElements\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd class=\"hdrop9-me\"\u003e4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a DROP is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe DROP tops out at 9 kW and hangs on a wall. For a room above 460 cubic feet, or a commercial room that reheats group after group, a STEEL at about 330 pounds of stone, or a HIVE at 528, holds temperature better. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hdrop9-c\"\u003e\n    \u003cp class=\"hdrop9-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM DROP 9 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hdrop9-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM DROP 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet on 240 volts, or 212 to 354 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile. HUUM does not say whether a glass door counts, so counting it is the cautious choice, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 9 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eNo. Every HUUM heater needs a separate certified control, bought separately. The control unit goes outside the hot room, its own manual sets out which panel finishes may be mounted inside, and a heater in a public sauna has to have a timer. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM DROP 9 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 121.3 lb (55 kg) and HUUM asks for natural stone 2 to 4 inches across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM DROP 9 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eOn 240 volts it draws 37.5 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 32.44 A, a 40 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM DROP 9 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM DROP 9 myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 9 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide, so settle it with your electrician before the rough-in.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM DROP 9 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. Every DROP runs from the UKU's main module on its own. Dealer listings quote several different thresholds for the box, which is where the confusion comes from.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow long does the HUUM DROP 9 take to heat a sauna?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eHUUM's manual says about an hour in a properly insulated room with a correctly sized heater, with the stone reaching throwing temperature at about the same time as the air. A leaky room or an undersized heater takes longer and costs more to run.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM DROP 9?\u003c\/summary\u003e\u003cdiv class=\"hdrop9-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop9-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop9-c\"\u003e\n\u003cp class=\"hdrop9-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hdrop9-who\"\u003e\n\u003cimg class=\"hdrop9-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop9-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop9-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514268115311,"sku":"H1001072","price":1751.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-studio.jpg?v=1790068311"},{"product_id":"huum-cliff-mini-4-electric-sauna-heater","title":"HUUM CLIFF Mini 4 4kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcliffmini4{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcliffmini4 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.hcliffmini4-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcliffmini4 .hcliffmini4-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcliffmini4 .hcliffmini4-close p.hcliffmini4-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcliffmini4 .hcliffmini4-stat3 a{color:var(--bright)}.hcliffmini4 .hcliffmini4-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcliffmini4 .hcliffmini4-cmp thead a .hcliffmini4-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcliffmini4 .hcliffmini4-ladder.hcliffmini4-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcliffmini4 .hcliffmini4-ladder.hcliffmini4-out td:last-child::before{content:\"Output:\\00a0\"}}.hcliffmini4 .hcliffmini4-tw + p,.hcliffmini4 .hcliffmini4-tw + h3,.hcliffmini4 .hcliffmini4-warn + p,.hcliffmini4 .hcliffmini4-warn + h3,.hcliffmini4 .hcliffmini4-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcliffmini4\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cdetails class=\"hcliffmini4-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcliffmini4-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eThe wall mounted CLIFF\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CLIFF Mini 4 is a 4 kW wall mounted electric sauna heater for rooms of 106 to 177 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eThe smallest CLIFF and the only one that hangs on the wall. It is rated for rooms of 106 to 177 cubic feet and is 6.3 inches deep, so it suits a compact room where the floor is already spoken for.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliffmini4-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcliffmini4-big\"\u003e106 to 177 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliffmini4-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcliffmini4-big\"\u003e14.58 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 20 A breaker and 12 AWG cable, the lightest circuit in the range. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code, which can call for more.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliffmini4-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcliffmini4-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 132 lb (60 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliffmini4-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CLIFF Mini 4 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CLIFF Mini 4 for \u003cstrong\u003e106 to 177 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-ladder hcliffmini4-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hcliffmini4-on\"\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003eCLIFF Mini 4 \u003cspan class=\"hcliffmini4-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003eCLIFF 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003eCLIFF 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003eCLIFF 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CLIFF Mini 4\u003c\/h3\u003e\n    \u003cp\u003eTake a room 5 feet by 4 feet with a 7.5 foot ceiling: 20 square feet of floor and 150 cubic feet, inside this heater's 106 to 177. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 193 cubic feet, which is past the CLIFF Mini 4 and into CLIFF 6 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's CLIFF manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eWhat makes it a CLIFF\u003c\/p\u003e\n    \u003ch2\u003eWhy the CLIFF Mini 4 looks like a column of stone\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eThe CLIFF puts its stone on the outside. The heating elements run inside and the outer face of the heater is the stone itself.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n\u003cp\u003eHUUM describes the CLIFF as having a natural stone surface that reflects the Nordic cliffs it is named for. The stone sits behind removable steel ribs, and the carton includes 2 blocks for taking the ribs off to lay it. HUUM says the CLIFF won a Red Dot Design Award in 2021.\u003c\/p\u003e\n\u003ch3\u003eSlim, and on the wall\u003c\/h3\u003e\n\u003cp\u003eThe heater is 10.6 in W x 6.3 in D x 38.4 in H. The Mini 4 hangs on the wall on a special bracket, so it takes no floor at all.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcliffmini4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-mini-4-studio.jpg?v=1790068864\u0026amp;width=1200\" alt=\"HUUM CLIFF Mini wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CLIFF Mini 4.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the CLIFF Mini 4 gives up\u003c\/h3\u003e\n    \u003cp\u003eIt runs on the lightest circuit in the range: 14.58 amps at 240 volts, with HUUM's manual calling for a 20 amp breaker and 12 AWG cable. It still holds about 132 pounds of stone, 4 boxes, one box less than the full size CLIFF. The \u003ca href=\"\/products\/huum-steel-mini-4-electric-sauna-heater\"\u003eSTEEL Mini 4\u003c\/a\u003e is the same output and room range in a stainless steel enclosure.\u003c\/p\u003e\n\u003cp\u003eWhat it gives up is the accessory range. HUUM lists its CLIFF safety rail, reflector and embedding flange for the CLIFF 6, 9 and 11, not the Mini 4, so a guard around the Mini is something your builder makes. On a 208 volt supply it makes 2.85 kW and is rated for 106 to 159 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliffmini4-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CLIFF Mini 4 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcliffmini4-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 132 lb (60 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM makes no rail for the Mini 4, so the guard is built on site. HUUM's manual recommends a material with low heat capacity and poor thermal conductivity. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hcliffmini4-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-cliff-mini-4-sauna-heater-package\"\u003eHUUM CLIFF Mini 4 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CLIFF Mini 4 needs\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-ladder hcliffmini4-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcliffmini4-on\"\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003e240 V\u003cspan class=\"hcliffmini4-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 kW, 14.58 A, 20 A breaker, 12 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcliffmini4-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e2.85 kW, 12.5 A, 20 A breaker, 12 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e106 to 159 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's CLIFF manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the CLIFF Mini 4 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliffmini4-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CLIFF Mini 4 can go\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CLIFF Mini 4\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e15.35 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 6.3 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e33.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted with a special bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThe Mini 4 is attached to the wall with a special bracket. Plan the wall reinforcement and cable run before the lining boards go on.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CLIFF Mini 4 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 4 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 132 lb (60 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. On the CLIFF the ribs come off for the job, using the 2 blocks in the carton, and go back on left end first. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hcliffmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliffmini4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-mini-4-stones_top.jpg?width=1200\" alt=\"Stones in the top of the HUUM CLIFF Mini\" width=\"1559\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliffmini4-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CLIFF Mini 4 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e4 kW x 0.183 = about 0.73 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 2.20 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 7 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CLIFF Mini 4 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcliffmini4-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcliffmini4-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e2 blocks for removing the stone ribs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliffmini4-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF Mini 4 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcliffmini4-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-spec\"\u003e\n\u003ccaption\u003eFrom the CLIFF User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e4 kW at 240 V, 2.85 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e106 to 177 adjusted cu. ft. at 240 V, 106 to 159 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e14.58 A at 240 V, 12.5 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e20 A at 240 V, 20 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e12 AWG at 240 V, 12 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 132 lb (60 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 6.3 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e15.35 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted with a special bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcliffmini4-tw\"\u003e\u003ctable class=\"hcliffmini4-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1005012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e33.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF Mini 4 against the rest of the CLIFF range\u003c\/h2\u003e\n    \u003cp class=\"hcliffmini4-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcliffmini4-tw hcliffmini4-tw--scroll\"\u003e\u003ctable class=\"hcliffmini4-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hcliffmini4-me\"\u003e\n\u003cspan class=\"hcliffmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-m\"\u003eCLIFF Mini 4\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-6-electric-sauna-heater\"\u003e\u003cspan class=\"hcliffmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-m\"\u003eCLIFF 6\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-9-electric-sauna-heater\"\u003e\u003cspan class=\"hcliffmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-m\"\u003eCLIFF 9\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-11-electric-sauna-heater\"\u003e\u003cspan class=\"hcliffmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-m\"\u003eCLIFF 11\u003c\/span\u003e\u003cspan class=\"hcliffmini4-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e9.45 in\u003c\/td\u003e\n\u003ctd\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hcliffmini4-me\"\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CLIFF is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CLIFF tops out at 11 kW and 566 cubic feet. The STEEL of the same output asks for slightly less side clearance, but needs more width wall to wall. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcliffmini4-c\"\u003e\n    \u003cp class=\"hcliffmini4-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF Mini 4 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcliffmini4-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CLIFF Mini 4 heat?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eHUUM rates it for 106 to 177 cubic feet on 240 volts, or 106 to 159 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF Mini 4 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CLIFF Mini 4 need?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 132 lb (60 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CLIFF Mini 4 need?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eOn 240 volts it draws 14.58 A and HUUM specifies a 20 A breaker with 12 AWG cable. On 208 volts it is 12.5 A, a 20 A breaker and 12 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CLIFF Mini 4 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CLIFF Mini 4 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CLIFF Mini 4 myself?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF Mini 4 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM CLIFF Mini 4 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eHUUM describes bench embedding and lists its embedding flange for the full size 6, 9 and 11, not the Mini 4, which hangs on the wall on its own bracket.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF Mini 4 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CLIFF Mini 4?\u003c\/summary\u003e\u003cdiv class=\"hcliffmini4-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcliffmini4-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcliffmini4-c\"\u003e\n\u003cp class=\"hcliffmini4-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CLIFF Mini 4 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcliffmini4-who\"\u003e\n\u003cimg class=\"hcliffmini4-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcliffmini4-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcliffmini4-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514357408111,"sku":"H1005012","price":2003.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-mini-4-studio.jpg?v=1790068864"},{"product_id":"huum-cliff-6-electric-sauna-heater","title":"HUUM CLIFF 6 6kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcliff6{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcliff6 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solid var(--edge);background:#fff}.hcliff6 .hcliff6-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcliff6 .hcliff6-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcliff6 .hcliff6-close p.hcliff6-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcliff6 .hcliff6-stat3 a{color:var(--bright)}.hcliff6 .hcliff6-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcliff6 .hcliff6-cmp thead a .hcliff6-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcliff6 .hcliff6-ladder.hcliff6-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcliff6 .hcliff6-ladder.hcliff6-out td:last-child::before{content:\"Output:\\00a0\"}}.hcliff6 .hcliff6-tw + p,.hcliff6 .hcliff6-tw + h3,.hcliff6 .hcliff6-warn + p,.hcliff6 .hcliff6-warn + h3,.hcliff6 .hcliff6-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcliff6\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cdetails class=\"hcliff6-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcliff6-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eThe first floor standing CLIFF\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CLIFF 6 is a 6 kW floor standing electric sauna heater for rooms of 177 to 318 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eSix kilowatts for rooms of 177 to 318 cubic feet, in a column 10.6 inches square that stands on the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff6-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcliff6-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff6-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcliff6-big\"\u003e25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff6-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcliff6-big\"\u003eControl and 5 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 165 lb (75 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-vidrow\"\u003e\n    \u003cdiv class=\"hcliff6-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hcliff6-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hcliff6-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CLIFF 6 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CLIFF 6 for \u003cstrong\u003e177 to 318 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-ladder hcliff6-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff6-kw\"\u003eCLIFF Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hcliff6-on\"\u003e\n\u003ctd class=\"hcliff6-kw\"\u003eCLIFF 6 \u003cspan class=\"hcliff6-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff6-kw\"\u003eCLIFF 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff6-kw\"\u003eCLIFF 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CLIFF 6\u003c\/h3\u003e\n    \u003cp\u003eTake a room 7 feet by 6 feet with a 7.5 foot ceiling: 42 square feet of floor and 315 cubic feet, inside this heater's 177 to 318. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 358 cubic feet, which is past the CLIFF 6 and into CLIFF 9 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's CLIFF manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eWhat makes it a CLIFF\u003c\/p\u003e\n    \u003ch2\u003eWhy the CLIFF 6 looks like a column of stone\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eThe CLIFF puts its stone on the outside. The heating elements run inside and the outer face of the heater is the stone itself.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n\u003cp\u003eHUUM describes the CLIFF as having a natural stone surface that reflects the Nordic cliffs it is named for. The stone sits behind removable steel ribs, and the carton includes 2 blocks for taking the ribs off to lay it. HUUM says the CLIFF won a Red Dot Design Award in 2021.\u003c\/p\u003e\n\u003ch3\u003eSlim, and on the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 10.6 in W x 10.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor and are anchored to it with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the CLIFF can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcliff6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-6-studio.jpg?v=1790068878\u0026amp;width=1200\" alt=\"HUUM CLIFF floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CLIFF 6.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhy the CLIFF 6 fits where others do not\u003c\/h3\u003e\n    \u003cp\u003eHUUM's manual asks for only 2.36 inches between the CLIFF 6 and the wall beside it, and 15.35 inches wall to wall across the heater. That is the same as the wall mounted Mini, on a heater with half again the output, so it suits a small room.\u003c\/p\u003e\n\u003cp\u003eThe clearance does not stay that small up the range. The CLIFF 9 needs 9.45 inches to the side wall and the CLIFF 11 needs 15, so if your room sits near the top of this heater's range, check the space before you size up.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff6-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CLIFF 6 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcliff6-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e5 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-cliff-safety-rail\"\u003eCLIFF safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-cliff-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-cliff-6-sauna-heater-package\"\u003eHUUM CLIFF 6 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CLIFF 6 needs\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-ladder hcliff6-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcliff6-on\"\u003e\n\u003ctd class=\"hcliff6-kw\"\u003e240 V\u003cspan class=\"hcliff6-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6 kW, 25 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcliff6-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e4.8 kW, 21.63 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's CLIFF manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the CLIFF 6 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff6-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CLIFF 6 can go\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CLIFF 6\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e15.35 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e35.2 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-6-in_sauna.jpg?width=1200\" alt=\"HUUM CLIFF heater in a sauna beside the benches\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CLIFF 6 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 6 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 165 lb (75 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e5 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. On the CLIFF the ribs come off for the job, using the 2 blocks in the carton, and go back on left end first. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hcliff6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-6-stones_top.jpg?width=1200\" alt=\"Stones in the top of a HUUM CLIFF heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff6-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CLIFF 6 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e6 kW x 0.183 = about 1.10 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 3.29 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 10 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CLIFF 6 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff6-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcliff6-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e2 blocks for removing the stone ribs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 5 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff6-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 6 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcliff6-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-spec\"\u003e\n\u003ccaption\u003eFrom the CLIFF User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e6 kW at 240 V, 4.8 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e177 to 318 adjusted cu. ft. at 240 V, 142 to 248 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e25 A at 240 V, 21.63 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e15.35 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcliff6-tw\"\u003e\u003ctable class=\"hcliff6-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1004012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e35.2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 6 against the rest of the CLIFF range\u003c\/h2\u003e\n    \u003cp class=\"hcliff6-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff6-tw hcliff6-tw--scroll\"\u003e\u003ctable class=\"hcliff6-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-m\"\u003eCLIFF Mini 4\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hcliff6-me\"\u003e\n\u003cspan class=\"hcliff6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-m\"\u003eCLIFF 6\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-9-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-m\"\u003eCLIFF 9\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-11-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-m\"\u003eCLIFF 11\u003c\/span\u003e\u003cspan class=\"hcliff6-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e9.45 in\u003c\/td\u003e\n\u003ctd\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd class=\"hcliff6-me\"\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CLIFF is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CLIFF tops out at 11 kW and 566 cubic feet. The STEEL of the same output asks for slightly less side clearance, but needs more width wall to wall. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcliff6-c\"\u003e\n    \u003cp class=\"hcliff6-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 6 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff6-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CLIFF 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet on 240 volts, or 142 to 248 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 6 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CLIFF 6 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003e5 boxes. The heater holds about 165 lb (75 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CLIFF 6 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eOn 240 volts it draws 25 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 21.63 A, a 30 A breaker and 10 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CLIFF 6 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CLIFF 6 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CLIFF 6 myself?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 6 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM CLIFF 6 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 6 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CLIFF 6?\u003c\/summary\u003e\u003cdiv class=\"hcliff6-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcliff6-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcliff6-c\"\u003e\n\u003cp class=\"hcliff6-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CLIFF 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcliff6-who\"\u003e\n\u003cimg class=\"hcliff6-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcliff6-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcliff6-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514361602415,"sku":"H1004012","price":2347.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-6-studio.jpg?v=1790068878"},{"product_id":"huum-cliff-9-electric-sauna-heater","title":"HUUM CLIFF 9 9kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcliff9{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcliff9 *{box-sizing:border-box}.hcliff9 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.hcliff9-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcliff9 .hcliff9-close p.hcliff9-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcliff9 .hcliff9-stat3 a{color:var(--bright)}.hcliff9 .hcliff9-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcliff9 .hcliff9-cmp thead a .hcliff9-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcliff9 .hcliff9-ladder.hcliff9-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcliff9 .hcliff9-ladder.hcliff9-out td:last-child::before{content:\"Output:\\00a0\"}}.hcliff9 .hcliff9-tw + p,.hcliff9 .hcliff9-tw + h3,.hcliff9 .hcliff9-warn + p,.hcliff9 .hcliff9-warn + h3,.hcliff9 .hcliff9-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcliff9\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cdetails class=\"hcliff9-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcliff9-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eNine kilowatts, and the clearances step up\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CLIFF 9 is a 9 kW floor standing electric sauna heater for rooms of 283 to 460 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eThe CLIFF 9 heats rooms of 283 to 460 cubic feet from the same 10.6 inch column as the 6. The body does not grow, but the space it needs around it does.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff9-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcliff9-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff9-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcliff9-big\"\u003e37.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable, a step up from the CLIFF 6. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff9-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcliff9-big\"\u003eControl and 5 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 165 lb (75 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-vidrow\"\u003e\n    \u003cdiv class=\"hcliff9-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hcliff9-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hcliff9-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CLIFF 9 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CLIFF 9 for \u003cstrong\u003e283 to 460 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-ladder hcliff9-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff9-kw\"\u003eCLIFF Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff9-kw\"\u003eCLIFF 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hcliff9-on\"\u003e\n\u003ctd class=\"hcliff9-kw\"\u003eCLIFF 9 \u003cspan class=\"hcliff9-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff9-kw\"\u003eCLIFF 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CLIFF 9\u003c\/h3\u003e\n    \u003cp\u003eTake a room 8 feet by 7.5 feet with a 7.5 foot ceiling: 60 square feet of floor and 450 cubic feet, inside this heater's 283 to 460. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 493 cubic feet, which is past the CLIFF 9 and into CLIFF 11 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's CLIFF manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eWhat makes it a CLIFF\u003c\/p\u003e\n    \u003ch2\u003eWhy the CLIFF 9 looks like a column of stone\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eThe CLIFF puts its stone on the outside. The heating elements run inside and the outer face of the heater is the stone itself.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n\u003cp\u003eHUUM describes the CLIFF as having a natural stone surface that reflects the Nordic cliffs it is named for. The stone sits behind removable steel ribs, and the carton includes 2 blocks for taking the ribs off to lay it. HUUM says the CLIFF won a Red Dot Design Award in 2021.\u003c\/p\u003e\n\u003ch3\u003eSlim, and on the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 10.6 in W x 10.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor and are anchored to it with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the CLIFF can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcliff9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-9-studio.jpg?v=1790068892\u0026amp;width=1200\" alt=\"HUUM CLIFF floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CLIFF 9.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003ePlan the space around the CLIFF 9 first\u003c\/h3\u003e\n    \u003cp\u003eHUUM's manual asks for 9.45 inches between this heater and the wall beside it, and 29.5 inches wall to wall across it. Its 9.45 inch side clearance is four times the CLIFF 6's, so check this measurement before the cubic feet.\u003c\/p\u003e\n\u003cp\u003eIf the space is tight, HUUM makes a CLIFF reflector for exactly this, and its instructions say the heater's safety distance from flammable material decreases by half when one is used. The STEEL 9, with the same output and room range, asks for only 3.94 inches to the side wall.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff9-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CLIFF 9 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcliff9-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e5 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-cliff-safety-rail\"\u003eCLIFF safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-cliff-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-cliff-9-sauna-heater-package\"\u003eHUUM CLIFF 9 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CLIFF 9 needs\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-ladder hcliff9-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcliff9-on\"\u003e\n\u003ctd class=\"hcliff9-kw\"\u003e240 V\u003cspan class=\"hcliff9-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW, 37.5 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcliff9-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e7.1 kW, 32.45 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's CLIFF manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the CLIFF 9 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff9-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CLIFF 9 can go\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CLIFF 9\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e9.45 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e29.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e35.2 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-9-in_sauna.jpg?width=1200\" alt=\"HUUM CLIFF heater in a sauna beside the benches\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CLIFF 9 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 9 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 165 lb (75 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e5 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. On the CLIFF the ribs come off for the job, using the 2 blocks in the carton, and go back on left end first. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hcliff9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-9-stones_top.jpg?width=1200\" alt=\"Stones in the top of a HUUM CLIFF heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff9-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CLIFF 9 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e9 kW x 0.183 = about 1.65 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 15 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CLIFF 9 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff9-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcliff9-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e2 blocks for removing the stone ribs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 5 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff9-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 9 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcliff9-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-spec\"\u003e\n\u003ccaption\u003eFrom the CLIFF User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e9 kW at 240 V, 7.1 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e283 to 460 adjusted cu. ft. at 240 V, 212 to 354 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e37.5 A at 240 V, 32.45 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 40 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e9.45 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e29.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcliff9-tw\"\u003e\u003ctable class=\"hcliff9-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1004022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e35.2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 9 against the rest of the CLIFF range\u003c\/h2\u003e\n    \u003cp class=\"hcliff9-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff9-tw hcliff9-tw--scroll\"\u003e\u003ctable class=\"hcliff9-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-m\"\u003eCLIFF Mini 4\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-6-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-m\"\u003eCLIFF 6\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hcliff9-me\"\u003e\n\u003cspan class=\"hcliff9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-m\"\u003eCLIFF 9\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-11-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-m\"\u003eCLIFF 11\u003c\/span\u003e\u003cspan class=\"hcliff9-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e9.45 in\u003c\/td\u003e\n\u003ctd\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd class=\"hcliff9-me\"\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CLIFF is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CLIFF tops out at 11 kW and 566 cubic feet. If the side clearance is the problem, the STEEL of the same output asks for less of it and holds twice the stone. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcliff9-c\"\u003e\n    \u003cp class=\"hcliff9-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 9 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff9-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CLIFF 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet on 240 volts, or 212 to 354 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 9 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CLIFF 9 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003e5 boxes. The heater holds about 165 lb (75 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CLIFF 9 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eOn 240 volts it draws 37.5 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 32.45 A, a 40 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CLIFF 9 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CLIFF 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CLIFF 9 myself?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 9 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM CLIFF 9 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 9 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CLIFF 9?\u003c\/summary\u003e\u003cdiv class=\"hcliff9-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcliff9-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcliff9-c\"\u003e\n\u003cp class=\"hcliff9-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CLIFF 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcliff9-who\"\u003e\n\u003cimg class=\"hcliff9-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcliff9-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcliff9-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514365010287,"sku":"H1004022","price":2638.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-9-studio.jpg?v=1790068892"},{"product_id":"huum-cliff-11-electric-sauna-heater","title":"HUUM CLIFF 11 11kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcliff11{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcliff11 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32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hcliff11 .hcliff11-c .hcliff11-btn:hover,.hcliff11 .hcliff11-btn:hover{background:var(--ink);color:#fff}.hcliff11 .hcliff11-close .hcliff11-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hcliff11 .hcliff11-close .hcliff11-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hcliff11 .hcliff11-pairup{grid-template-columns:1fr;gap:24px}.hcliff11 .hcliff11-chk{grid-template-columns:1fr}.hcliff11 .hcliff11-vidrow{flex-direction:column;align-items:stretch}.hcliff11 .hcliff11-vid{--cap:380px;align-self:center}.hcliff11 .hcliff11-vidrow{gap:24px}.hcliff11 .hcliff11-c{padding:0 16px}.hcliff11 section{padding:40px 0}.hcliff11 section:first-of-type{padding-top:20px}.hcliff11 h2{font-size:23px}.hcliff11 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td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hcliff11 table.hcliff11-spec th,.hcliff11 table.hcliff11-spec td{display:block;width:auto}.hcliff11 table.hcliff11-spec th{border-bottom:0;padding-bottom:0}}.hcliff11 .hcliff11-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hcliff11 .hcliff11-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hcliff11 .hcliff11-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hcliff11 .hcliff11-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hcliff11 .hcliff11-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcliff11 .hcliff11-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcliff11 .hcliff11-close p.hcliff11-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcliff11 .hcliff11-stat3 a{color:var(--bright)}.hcliff11 .hcliff11-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcliff11 .hcliff11-cmp thead a .hcliff11-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcliff11 .hcliff11-ladder.hcliff11-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcliff11 .hcliff11-ladder.hcliff11-out td:last-child::before{content:\"Output:\\00a0\"}}.hcliff11 .hcliff11-tw + p,.hcliff11 .hcliff11-tw + h3,.hcliff11 .hcliff11-warn + p,.hcliff11 .hcliff11-warn + h3,.hcliff11 .hcliff11-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcliff11\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cdetails class=\"hcliff11-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcliff11-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eThe largest CLIFF\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CLIFF 11 is a 11 kW floor standing electric sauna heater for rooms of 354 to 566 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eEleven kilowatts for rooms of 354 to 566 cubic feet, the top of the CLIFF range, from the same slim column as the rest of the family.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff11-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcliff11-big\"\u003e354 to 566 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff11-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcliff11-big\"\u003e43.75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable. Worth confirming your panel can carry it. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcliff11-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcliff11-big\"\u003eControl and 5 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 165 lb (75 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-vidrow\"\u003e\n    \u003cdiv class=\"hcliff11-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hcliff11-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hcliff11-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CLIFF 11 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CLIFF 11 for \u003cstrong\u003e354 to 566 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-ladder hcliff11-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff11-kw\"\u003eCLIFF Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff11-kw\"\u003eCLIFF 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcliff11-kw\"\u003eCLIFF 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hcliff11-on\"\u003e\n\u003ctd class=\"hcliff11-kw\"\u003eCLIFF 11 \u003cspan class=\"hcliff11-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CLIFF 11\u003c\/h3\u003e\n    \u003cp\u003eTake a room 9 feet by 8 feet with a 7.5 foot ceiling: 72 square feet of floor and 540 cubic feet, inside this heater's 354 to 566. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 583 cubic feet, which is past the top of the CLIFF 11's range.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's CLIFF manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eWhat makes it a CLIFF\u003c\/p\u003e\n    \u003ch2\u003eWhy the CLIFF 11 looks like a column of stone\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eThe CLIFF puts its stone on the outside. The heating elements run inside and the outer face of the heater is the stone itself.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-block\"\u003e\n        \u003ch3\u003eThe stone is the surface\u003c\/h3\u003e\n\u003cp\u003eHUUM describes the CLIFF as having a natural stone surface that reflects the Nordic cliffs it is named for. The stone sits behind removable steel ribs, and the carton includes 2 blocks for taking the ribs off to lay it. HUUM says the CLIFF won a Red Dot Design Award in 2021.\u003c\/p\u003e\n\u003ch3\u003eSlim, and on the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 10.6 in W x 10.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor and are anchored to it with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the CLIFF can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcliff11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-11-studio.jpg?v=1790068908\u0026amp;width=1200\" alt=\"HUUM CLIFF floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CLIFF 11.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eThe CLIFF 11 needs room around it\u003c\/h3\u003e\n    \u003cp\u003eHUUM's manual asks for 15 inches between this heater and the wall beside it, and 40.5 inches wall to wall across it. The room has to be planned around that.\u003c\/p\u003e\n\u003cp\u003eIf that space is not there, two HUUM answers exist. The CLIFF reflector halves the safety distance from flammable material, according to HUUM's reflector instructions. Or the STEEL 11 gives the same 11 kW and the same room range at 3.94 inches to the side wall, with twice the stone. On 208 volts this heater makes 8.5 kW and is rated for 265 to 424 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff11-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CLIFF 11 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcliff11-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e5 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-cliff-safety-rail\"\u003eCLIFF safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-cliff-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-cliff-11-sauna-heater-package\"\u003eHUUM CLIFF 11 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CLIFF 11 needs\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-ladder hcliff11-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcliff11-on\"\u003e\n\u003ctd class=\"hcliff11-kw\"\u003e240 V\u003cspan class=\"hcliff11-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e11 kW, 43.75 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcliff11-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e8.5 kW, 37.98 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e265 to 424 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's CLIFF manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the CLIFF 11 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff11-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CLIFF 11 can go\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CLIFF 11\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e40.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e37.5 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-11-in_sauna.jpg?width=1200\" alt=\"HUUM CLIFF heater in a sauna beside the benches\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CLIFF 11 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 11 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 165 lb (75 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e5 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. On the CLIFF the ribs come off for the job, using the 2 blocks in the carton, and go back on left end first. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hcliff11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcliff11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-11-stones_top.jpg?width=1200\" alt=\"Stones in the top of a HUUM CLIFF heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff11-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CLIFF 11 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e11 kW x 0.183 = about 2.01 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 6.04 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 18 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CLIFF 11 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff11-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcliff11-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e2 blocks for removing the stone ribs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 5 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcliff11-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 11 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcliff11-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-spec\"\u003e\n\u003ccaption\u003eFrom the CLIFF User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e11 kW at 240 V, 8.5 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e354 to 566 adjusted cu. ft. at 240 V, 265 to 424 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e43.75 A at 240 V, 37.98 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 50 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 165 lb (75 kg), 5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e10.6 in W x 10.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e40.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcliff11-tw\"\u003e\u003ctable class=\"hcliff11-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1004032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e37.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 11 against the rest of the CLIFF range\u003c\/h2\u003e\n    \u003cp class=\"hcliff11-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcliff11-tw hcliff11-tw--scroll\"\u003e\u003ctable class=\"hcliff11-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-m\"\u003eCLIFF Mini 4\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-6-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-m\"\u003eCLIFF 6\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-cliff-9-electric-sauna-heater\"\u003e\u003cspan class=\"hcliff11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-m\"\u003eCLIFF 9\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hcliff11-me\"\u003e\n\u003cspan class=\"hcliff11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-m\"\u003eCLIFF 11\u003c\/span\u003e\u003cspan class=\"hcliff11-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e9.45 in\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e15.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd class=\"hcliff11-me\"\u003e5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CLIFF is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CLIFF tops out at 11 kW and 566 cubic feet. If the side clearance is the problem, the STEEL of the same output asks for less of it and holds twice the stone. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcliff11-c\"\u003e\n    \u003cp class=\"hcliff11-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CLIFF 11 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcliff11-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CLIFF 11 heat?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eHUUM rates it for 354 to 566 cubic feet on 240 volts, or 265 to 424 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 11 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CLIFF 11 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003e5 boxes. The heater holds about 165 lb (75 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CLIFF 11 need?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eOn 240 volts it draws 43.75 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 37.98 A, a 50 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CLIFF 11 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CLIFF 11 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CLIFF 11 myself?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 11 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM CLIFF 11 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CLIFF 11 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CLIFF 11?\u003c\/summary\u003e\u003cdiv class=\"hcliff11-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcliff11-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcliff11-c\"\u003e\n\u003cp class=\"hcliff11-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CLIFF 11 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcliff11-who\"\u003e\n\u003cimg class=\"hcliff11-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcliff11-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcliff11-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514368156015,"sku":"H1004032","price":2879.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-cliff-11-studio.jpg?v=1790068908"},{"product_id":"huum-steel-mini-4-electric-sauna-heater","title":"HUUM STEEL Mini 4 4kW Electric Sauna Heater","description":"\u003cstyle\u003e.hsteelmini4{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsteelmini4 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.hsteelmini4-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hsteelmini4 .hsteelmini4-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hsteelmini4 .hsteelmini4-close p.hsteelmini4-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hsteelmini4 .hsteelmini4-stat3 a{color:var(--bright)}.hsteelmini4 .hsteelmini4-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hsteelmini4 .hsteelmini4-cmp thead a .hsteelmini4-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsteelmini4 .hsteelmini4-ladder.hsteelmini4-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsteelmini4 .hsteelmini4-ladder.hsteelmini4-out td:last-child::before{content:\"Output:\\00a0\"}}.hsteelmini4 .hsteelmini4-tw + p,.hsteelmini4 .hsteelmini4-tw + h3,.hsteelmini4 .hsteelmini4-warn + p,.hsteelmini4 .hsteelmini4-warn + h3,.hsteelmini4 .hsteelmini4-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsteelmini4\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cdetails class=\"hsteelmini4-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hsteelmini4-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eThe wall mounted STEEL\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM STEEL Mini 4 is a 4 kW wall mounted electric sauna heater for rooms of 106 to 177 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eThe smallest STEEL and the only one that hangs on the wall, for rooms of 106 to 177 cubic feet. It is 6.3 inches deep and asks for only 2 inches to the wall beside it.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteelmini4-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hsteelmini4-big\"\u003e106 to 177 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteelmini4-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hsteelmini4-big\"\u003e14.58 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 20 A breaker and 12 AWG cable, the lightest circuit in the range. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code, which can call for more.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteelmini4-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hsteelmini4-big\"\u003eControl and 4 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 132 lb (60 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteelmini4-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM STEEL Mini 4 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the STEEL Mini 4 for \u003cstrong\u003e106 to 177 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-ladder hsteelmini4-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hsteelmini4-on\"\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003eSTEEL Mini 4 \u003cspan class=\"hsteelmini4-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003eSTEEL 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003eSTEEL 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003eSTEEL 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the STEEL Mini 4\u003c\/h3\u003e\n    \u003cp\u003eTake a room 5 feet by 4 feet with a 7.5 foot ceiling: 20 square feet of floor and 150 cubic feet, inside this heater's 106 to 177. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 193 cubic feet, which is past the STEEL Mini 4 and into STEEL 6 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's STEEL manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eWhat makes it a STEEL\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL Mini 4 is built around\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eThe STEEL wraps its stone in a stainless steel enclosure. HUUM describes it as a sleek design with small safety distances, and the manual's figures bear that out.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-block\"\u003e\n        \u003ch3\u003eA lot of stone for the size\u003c\/h3\u003e\n\u003cp\u003eIt holds about 132 lb (60 kg). HUUM describes the STEEL as holding a large amount of stone for gentle and long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eOn the wall\u003c\/h3\u003e\n\u003cp\u003eThe heater is 12.2 in W x 6.3 in D x 38.4 in H. The Mini 4 hangs on the wall on a special bracket.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hsteelmini4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-mini-4-studio.jpg?v=1790068921\u0026amp;width=1200\" alt=\"HUUM STEEL Mini wall mounted electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM STEEL Mini 4.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the STEEL Mini 4 gives up\u003c\/h3\u003e\n    \u003cp\u003eElectrically it matches the \u003ca href=\"\/products\/huum-cliff-mini-4-electric-sauna-heater\"\u003eCLIFF Mini 4\u003c\/a\u003e: 14.58 amps at 240 volts, with HUUM's manual calling for a 20 amp breaker and 12 AWG cable. It holds about 132 pounds of stone, 4 boxes. Beyond small differences in width and clearance, the choice between the two Minis is mostly the look: the STEEL wraps its stone in a stainless steel enclosure.\u003c\/p\u003e\n\u003cp\u003eWhat it gives up is the accessory range. HUUM lists its STEEL safety rail, reflector and the CLIFF and STEEL embedding flange for the 6, 9 and 11, not the Mini 4, so a guard around the Mini is something your builder makes. On 208 volts it makes 2.85 kW for 106 to 159 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteelmini4-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working STEEL Mini 4 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hsteelmini4-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e4 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 132 lb (60 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM makes no rail for the Mini 4, so the guard is built on site. HUUM's manual recommends a material with low heat capacity and poor thermal conductivity. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hsteelmini4-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-steel-mini-4-sauna-heater-package\"\u003eHUUM STEEL Mini 4 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM STEEL Mini 4 needs\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-ladder hsteelmini4-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hsteelmini4-on\"\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003e240 V\u003cspan class=\"hsteelmini4-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 kW, 14.58 A, 20 A breaker, 12 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hsteelmini4-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e2.85 kW, 12.5 A, 20 A breaker, 12 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e106 to 159 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's STEEL manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the STEEL Mini 4 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteelmini4-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM STEEL Mini 4 can go\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, STEEL Mini 4\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e16.1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.2 in W x 6.3 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e32.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted with a special bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThe Mini 4 is attached to the wall with a special bracket. Plan the wall reinforcement and cable run before the lining boards go on.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteelmini4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-mini-4-in_sauna.jpg?width=1200\" alt=\"HUUM STEEL Mini in the corner of a wood sauna\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the STEEL Mini 4 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 4 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 132 lb (60 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e4 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hsteelmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteelmini4-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-mini-4-top.jpg?width=1200\" alt=\"Top of the HUUM STEEL Mini with its stones\" width=\"1316\" height=\"1316\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteelmini4-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL Mini 4 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e4 kW x 0.183 = about 0.73 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 2.20 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 7 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the STEEL Mini 4 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hsteelmini4-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hsteelmini4-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 4 boxes of stone are required to operate the heater.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteelmini4-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL Mini 4 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hsteelmini4-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-spec\"\u003e\n\u003ccaption\u003eFrom the STEEL User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e4 kW at 240 V, 2.85 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e106 to 177 adjusted cu. ft. at 240 V, 106 to 159 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e14.58 A at 240 V, 12.5 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e20 A at 240 V, 20 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e12 AWG at 240 V, 12 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 132 lb (60 kg), 4 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.2 in W x 6.3 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e16.1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted with a special bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hsteelmini4-tw\"\u003e\u003ctable class=\"hsteelmini4-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1007012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e32.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL Mini 4 against the rest of the STEEL range\u003c\/h2\u003e\n    \u003cp class=\"hsteelmini4-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hsteelmini4-tw hsteelmini4-tw--scroll\"\u003e\u003ctable class=\"hsteelmini4-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hsteelmini4-me\"\u003e\n\u003cspan class=\"hsteelmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-m\"\u003eSTEEL Mini 4\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-6-electric-sauna-heater\"\u003e\u003cspan class=\"hsteelmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-m\"\u003eSTEEL 6\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-9-electric-sauna-heater\"\u003e\u003cspan class=\"hsteelmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-m\"\u003eSTEEL 9\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-11-electric-sauna-heater\"\u003e\u003cspan class=\"hsteelmini4-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-m\"\u003eSTEEL 11\u003c\/span\u003e\u003cspan class=\"hsteelmini4-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hsteelmini4-me\"\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a STEEL is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe STEEL tops out at 11 kW and 566 cubic feet. If you want the stone on show, the CLIFF carries the same outputs in a slimmer 10.6 inch column. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hsteelmini4-c\"\u003e\n    \u003cp class=\"hsteelmini4-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL Mini 4 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hsteelmini4-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM STEEL Mini 4 heat?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eHUUM rates it for 106 to 177 cubic feet on 240 volts, or 106 to 159 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL Mini 4 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM STEEL Mini 4 need?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003e4 boxes. The heater holds about 132 lb (60 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM STEEL Mini 4 need?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eOn 240 volts it draws 14.58 A and HUUM specifies a 20 A breaker with 12 AWG cable. On 208 volts it is 12.5 A, a 20 A breaker and 12 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM STEEL Mini 4 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the STEEL Mini 4 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM STEEL Mini 4 myself?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL Mini 4 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM STEEL Mini 4 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eHUUM describes bench embedding and lists its embedding flange for the full size 6, 9 and 11, not the Mini 4, which hangs on the wall on its own bracket.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL Mini 4 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM STEEL Mini 4?\u003c\/summary\u003e\u003cdiv class=\"hsteelmini4-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsteelmini4-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsteelmini4-c\"\u003e\n\u003cp class=\"hsteelmini4-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the STEEL Mini 4 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hsteelmini4-who\"\u003e\n\u003cimg class=\"hsteelmini4-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsteelmini4-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsteelmini4-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514377560431,"sku":"H1007012","price":1576.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-mini-4-studio.jpg?v=1790068921"},{"product_id":"huum-steel-6-electric-sauna-heater","title":"HUUM STEEL 6 6kW Electric Sauna Heater","description":"\u003cstyle\u003e.hsteel6{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsteel6 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td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hsteel6 table.hsteel6-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hsteel6 .hsteel6-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hsteel6 table.hsteel6-spec th,.hsteel6 table.hsteel6-spec td{display:block;width:auto}.hsteel6 table.hsteel6-spec th{border-bottom:0;padding-bottom:0}}.hsteel6 .hsteel6-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hsteel6 .hsteel6-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hsteel6 .hsteel6-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hsteel6 .hsteel6-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hsteel6 .hsteel6-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hsteel6 .hsteel6-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hsteel6 .hsteel6-close p.hsteel6-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hsteel6 .hsteel6-stat3 a{color:var(--bright)}.hsteel6 .hsteel6-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hsteel6 .hsteel6-cmp thead a .hsteel6-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsteel6 .hsteel6-ladder.hsteel6-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsteel6 .hsteel6-ladder.hsteel6-out td:last-child::before{content:\"Output:\\00a0\"}}.hsteel6 .hsteel6-tw + p,.hsteel6 .hsteel6-tw + h3,.hsteel6 .hsteel6-warn + p,.hsteel6 .hsteel6-warn + h3,.hsteel6 .hsteel6-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsteel6\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cdetails class=\"hsteel6-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hsteel6-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eTwice the stone of the CLIFF 6\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM STEEL 6 is a 6 kW floor standing electric sauna heater for rooms of 177 to 318 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eSix kilowatts for rooms of 177 to 318 cubic feet, in a stainless steel column 12.6 inches square that holds about 330 pounds of stone.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel6-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hsteel6-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel6-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hsteel6-big\"\u003e25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel6-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hsteel6-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 330 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-vidrow\"\u003e\n    \u003cdiv class=\"hsteel6-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hsteel6-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hsteel6-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM STEEL 6 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the STEEL 6 for \u003cstrong\u003e177 to 318 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-ladder hsteel6-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel6-kw\"\u003eSTEEL Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hsteel6-on\"\u003e\n\u003ctd class=\"hsteel6-kw\"\u003eSTEEL 6 \u003cspan class=\"hsteel6-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel6-kw\"\u003eSTEEL 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel6-kw\"\u003eSTEEL 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the STEEL 6\u003c\/h3\u003e\n    \u003cp\u003eTake a room 7 feet by 6 feet with a 7.5 foot ceiling: 42 square feet of floor and 315 cubic feet, inside this heater's 177 to 318. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 358 cubic feet, which is past the STEEL 6 and into STEEL 9 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's STEEL manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eWhat makes it a STEEL\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 6 is built around\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eThe STEEL wraps its stone in a stainless steel enclosure. HUUM describes it as a sleek design with small safety distances, and the manual's figures bear that out.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-block\"\u003e\n        \u003ch3\u003eA lot of stone for the size\u003c\/h3\u003e\n\u003cp\u003eIt holds about 330 lb (150 kg). HUUM describes the STEEL as holding a large amount of stone for gentle and long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eOn the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 12.6 in W x 12.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor on the adjustable legs in the carton and are anchored to the floor with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the STEEL can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hsteel6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-6-studio.jpg?v=1790068935\u0026amp;width=1200\" alt=\"HUUM STEEL floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM STEEL 6.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhy the STEEL 6 carries so much stone\u003c\/h3\u003e\n    \u003cp\u003eThe STEEL 6 has the same output, room range and circuit as the CLIFF 6, and holds twice the stone: about 330 pounds, 10 boxes, against 165. HUUM describes the STEEL as giving gentle, long lasting steam, and the extra stone is where that comes from.\u003c\/p\u003e\n\u003cp\u003eIt also keeps its clearances small. HUUM's manual asks for 2 inches to the wall beside it and 16.5 inches wall to wall across it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel6-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working STEEL 6 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hsteel6-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-steel-safety-rail\"\u003eSTEEL safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-steel-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-steel-6-sauna-heater-package\"\u003eHUUM STEEL 6 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-6-with_rail.jpg?width=1200\" alt=\"HUUM STEEL heater with the HUUM safety rail fitted\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater with the safety rail HUUM lists for it, sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM STEEL 6 needs\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-ladder hsteel6-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hsteel6-on\"\u003e\n\u003ctd class=\"hsteel6-kw\"\u003e240 V\u003cspan class=\"hsteel6-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6 kW, 25 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hsteel6-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e4.8 kW, 21.63 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's STEEL manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the STEEL 6 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel6-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM STEEL 6 can go\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, STEEL 6\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e16.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e33.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-6-in_sauna.jpg?width=1200\" alt=\"HUUM STEEL heater installed in the corner of a sauna\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the STEEL 6 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 6 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 330 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hsteel6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel6-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 6 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e6 kW x 0.183 = about 1.10 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 3.29 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 10 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the STEEL 6 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel6-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hsteel6-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel6-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 6 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hsteel6-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-spec\"\u003e\n\u003ccaption\u003eFrom the STEEL User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e6 kW at 240 V, 4.8 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e177 to 318 adjusted cu. ft. at 240 V, 142 to 248 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e25 A at 240 V, 21.63 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e16.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hsteel6-tw\"\u003e\u003ctable class=\"hsteel6-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1006012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e33.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 6 against the rest of the STEEL range\u003c\/h2\u003e\n    \u003cp class=\"hsteel6-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel6-tw hsteel6-tw--scroll\"\u003e\u003ctable class=\"hsteel6-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-m\"\u003eSTEEL Mini 4\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hsteel6-me\"\u003e\n\u003cspan class=\"hsteel6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-m\"\u003eSTEEL 6\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-9-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-m\"\u003eSTEEL 9\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-11-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-m\"\u003eSTEEL 11\u003c\/span\u003e\u003cspan class=\"hsteel6-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd class=\"hsteel6-me\"\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a STEEL is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe STEEL tops out at 11 kW and 566 cubic feet. If you want the stone on show, the CLIFF carries the same outputs in a slimmer 10.6 inch column. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hsteel6-c\"\u003e\n    \u003cp class=\"hsteel6-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 6 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel6-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM STEEL 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet on 240 volts, or 142 to 248 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 6 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM STEEL 6 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003e10 boxes. The heater holds about 330 lb (150 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM STEEL 6 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eOn 240 volts it draws 25 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 21.63 A, a 30 A breaker and 10 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM STEEL 6 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the STEEL 6 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM STEEL 6 myself?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 6 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM STEEL 6 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 6 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM STEEL 6?\u003c\/summary\u003e\u003cdiv class=\"hsteel6-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsteel6-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsteel6-c\"\u003e\n\u003cp class=\"hsteel6-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the STEEL 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hsteel6-who\"\u003e\n\u003cimg class=\"hsteel6-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsteel6-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsteel6-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514381787503,"sku":"H1006012","price":2033.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-6-studio.jpg?v=1790068935"},{"product_id":"huum-steel-9-electric-sauna-heater","title":"HUUM STEEL 9 9kW Electric Sauna Heater","description":"\u003cstyle\u003e.hsteel9{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsteel9 *{box-sizing:border-box}.hsteel9 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.hsteel9-cmp-here{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--bright);margin-top:8px}.hsteel9 table.hsteel9-cmp thead th.hsteel9-me .hsteel9-cmp-h{color:#C3B6A5}.hsteel9 table.hsteel9-cmp thead th.hsteel9-me .hsteel9-cmp-m{color:#fff}.hsteel9 table.hsteel9-cmp thead th{background:var(--fill);color:var(--ink);font-size:11px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--edge)}.hsteel9 table.hsteel9-cmp thead th.hsteel9-me{background:var(--dark);color:#fff}.hsteel9 table.hsteel9-cmp td.hsteel9-me{background:var(--hl);font-weight:600;color:var(--ink)}.hsteel9 table.hsteel9-cmp td:first-child{color:var(--sub)}.hsteel9 .hsteel9-ladder td:last-child{text-align:right;white-space:nowrap;color:var(--sub)}.hsteel9 .hsteel9-ladder .hsteel9-kw{font-weight:700;color:var(--ink);font-size:17px;white-space:nowrap}.hsteel9 .hsteel9-ladder tr.hsteel9-on td{background:var(--hl)}.hsteel9 .hsteel9-ladder .hsteel9-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;background:var(--accent);color:#fff;padding:3px 8px;border-radius:var(--r-xs);margin-left:9px;vertical-align:2px}.hsteel9 .hsteel9-warn{background:#fff;border:1px solid var(--warm);border-left:3px solid var(--accent);border-radius:0 var(--r-lg) var(--r-lg) 0;padding:18px var(--gut) 18px calc(var(--gut) - 3px);margin:24px 0 0;max-width:none}.hsteel9 .hsteel9-warn p{max-width:none}.hsteel9 .hsteel9-warn p{margin:0;font-size:17px}.hsteel9 .hsteel9-warn b{display:block;color:var(--ink);margin-bottom:8px}.hsteel9 blockquote{margin:16px 0 0;padding:0 0 0 20px;border-left:3px solid var(--bright);max-width:58ch}.hsteel9 blockquote p{font-size:19px;line-height:1.5;color:var(--ink);margin:0 0 8px}.hsteel9 blockquote cite{font-style:normal;font-size:13.5px;color:var(--sub)}.hsteel9 .hsteel9-pairup{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:32px;align-items:start;margin:24px 0 0}.hsteel9 .hsteel9-pairup\u003e.hsteel9-tw{margin-top:0}.hsteel9 .hsteel9-after{margin-top:24px}.hsteel9 .hsteel9-split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}.hsteel9 .hsteel9-split\u003efigure img{max-height:440px;object-fit:cover;width:100%}.hsteel9 .hsteel9-pairup\u003efigure img{max-height:320px;object-fit:cover;width:100%}.hsteel9 .hsteel9-pairup\u003ediv\u003e.hsteel9-tw{margin-top:0}.hsteel9 blockquote cite{display:block;margin-top:8px}.hsteel9 figcaption{font-size:13.5px;color:var(--sub);margin-top:8px;line-height:1.5}.hsteel9 .hsteel9-more{margin:24px 0 0}.hsteel9 .hsteel9-more\u003esummary{font-size:15.5px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;padding:14px var(--gut);background:var(--fill);border:1px solid var(--warm);border-radius:var(--r-lg);position:relative}.hsteel9 .hsteel9-more\u003esummary::-webkit-details-marker{display:none}.hsteel9 .hsteel9-more\u003esummary::after{content:\"\";position:absolute;right:var(--gut);top:20px;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}.hsteel9 .hsteel9-more[open]\u003esummary::after{transform:rotate(225deg)}.hsteel9 .hsteel9-rl{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 8px !important}@media screen and (max-width:840px){}.hsteel9 .hsteel9-faq{border-top:1px solid var(--line);margin-top:16px}.hsteel9 .hsteel9-faq details{border-bottom:1px solid var(--line)}.hsteel9 .hsteel9-faq summary{cursor:pointer;padding:17px 36px 17px 0;position:relative;list-style:none;font-size:17px;font-weight:600;color:var(--ink)}.hsteel9 .hsteel9-faq summary::-webkit-details-marker{display:none}.hsteel9 .hsteel9-faq summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hsteel9 .hsteel9-faq details[open] summary::after{transform:rotate(225deg)}.hsteel9 .hsteel9-faq .hsteel9-fb{padding:0 0 18px;max-width:68ch}.hsteel9 .hsteel9-faq .hsteel9-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hsteel9 .hsteel9-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hsteel9 .hsteel9-close h2{color:#fff;max-width:22ch}.hsteel9 .hsteel9-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hsteel9 .hsteel9-close .hsteel9-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hsteel9 .hsteel9-close .hsteel9-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hsteel9 .hsteel9-close .hsteel9-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hsteel9 .hsteel9-close .hsteel9-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hsteel9 .hsteel9-close .hsteel9-who span{display:block}.hsteel9 .hsteel9-c .hsteel9-btn,.hsteel9 .hsteel9-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hsteel9 .hsteel9-c .hsteel9-btn:hover,.hsteel9 .hsteel9-btn:hover{background:var(--ink);color:#fff}.hsteel9 .hsteel9-close .hsteel9-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hsteel9 .hsteel9-close .hsteel9-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hsteel9 .hsteel9-pairup{grid-template-columns:1fr;gap:24px}.hsteel9 .hsteel9-chk{grid-template-columns:1fr}.hsteel9 .hsteel9-vidrow{flex-direction:column;align-items:stretch}.hsteel9 .hsteel9-vid{--cap:380px;align-self:center}.hsteel9 .hsteel9-vidrow{gap:24px}.hsteel9 .hsteel9-c{padding:0 16px}.hsteel9 section{padding:40px 0}.hsteel9 section:first-of-type{padding-top:20px}.hsteel9 h2{font-size:23px}.hsteel9 p.hsteel9-lead{font-size:17px}.hsteel9 .hsteel9-stat3{grid-template-columns:1fr}.hsteel9 .hsteel9-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hsteel9 .hsteel9-stat3\u003ediv:last-child{border-bottom:0}.hsteel9 .hsteel9-split{grid-template-columns:1fr;gap:24px}.hsteel9 .hsteel9-buy{grid-template-columns:1fr}.hsteel9 .hsteel9-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hsteel9 .hsteel9-toc\u003esummary{display:none}.hsteel9 .hsteel9-toc ol{display:grid !important}}@media screen and (max-width:560px){.hsteel9 .hsteel9-ladder thead{position:absolute;left:-9999px}.hsteel9 .hsteel9-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hsteel9 .hsteel9-ladder tr.hsteel9-on{background:var(--hl)}.hsteel9 .hsteel9-ladder td{display:block;border:0;padding:0}.hsteel9 .hsteel9-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hsteel9 .hsteel9-hl td,.hsteel9 .hsteel9-hl th,.hsteel9 .hsteel9-ladder tr.hsteel9-on td,.hsteel9 table.hsteel9-cmp td.hsteel9-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hsteel9 table.hsteel9-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hsteel9 table th,.rte .hsteel9 table td{padding:11px var(--gut)}.hsteel9 .hsteel9-ladder th:last-child,.hsteel9 .hsteel9-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hsteel9 .hsteel9-buy{align-items:start}.hsteel9 .hsteel9-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hsteel9 table.hsteel9-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hsteel9 table.hsteel9-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hsteel9 .hsteel9-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hsteel9 table.hsteel9-spec th,.hsteel9 table.hsteel9-spec td{display:block;width:auto}.hsteel9 table.hsteel9-spec th{border-bottom:0;padding-bottom:0}}.hsteel9 .hsteel9-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hsteel9 .hsteel9-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hsteel9 .hsteel9-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hsteel9 .hsteel9-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hsteel9 .hsteel9-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hsteel9 .hsteel9-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hsteel9 .hsteel9-close p.hsteel9-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hsteel9 .hsteel9-stat3 a{color:var(--bright)}.hsteel9 .hsteel9-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hsteel9 .hsteel9-cmp thead a .hsteel9-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsteel9 .hsteel9-ladder.hsteel9-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsteel9 .hsteel9-ladder.hsteel9-out td:last-child::before{content:\"Output:\\00a0\"}}.hsteel9 .hsteel9-tw + p,.hsteel9 .hsteel9-tw + h3,.hsteel9 .hsteel9-warn + p,.hsteel9 .hsteel9-warn + h3,.hsteel9 .hsteel9-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsteel9\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cdetails class=\"hsteel9-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hsteel9-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eNine kilowatts with small clearances\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM STEEL 9 is a 9 kW floor standing electric sauna heater for rooms of 283 to 460 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eThe STEEL 9 heats rooms of 283 to 460 cubic feet and asks for only 3.94 inches to the wall beside it, where the CLIFF 9 of the same output asks for 9.45.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel9-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hsteel9-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel9-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hsteel9-big\"\u003e37.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable, a step up from the STEEL 6. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel9-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hsteel9-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 330 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-vidrow\"\u003e\n    \u003cdiv class=\"hsteel9-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hsteel9-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hsteel9-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM STEEL 9 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the STEEL 9 for \u003cstrong\u003e283 to 460 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-ladder hsteel9-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel9-kw\"\u003eSTEEL Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel9-kw\"\u003eSTEEL 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hsteel9-on\"\u003e\n\u003ctd class=\"hsteel9-kw\"\u003eSTEEL 9 \u003cspan class=\"hsteel9-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel9-kw\"\u003eSTEEL 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the STEEL 9\u003c\/h3\u003e\n    \u003cp\u003eTake a room 8 feet by 7.5 feet with a 7.5 foot ceiling: 60 square feet of floor and 450 cubic feet, inside this heater's 283 to 460. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 493 cubic feet, which is past the STEEL 9 and into STEEL 11 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's STEEL manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eWhat makes it a STEEL\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 9 is built around\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eThe STEEL wraps its stone in a stainless steel enclosure. HUUM describes it as a sleek design with small safety distances, and the manual's figures bear that out.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-block\"\u003e\n        \u003ch3\u003eA lot of stone for the size\u003c\/h3\u003e\n\u003cp\u003eIt holds about 330 lb (150 kg). HUUM describes the STEEL as holding a large amount of stone for gentle and long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eOn the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 12.6 in W x 12.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor on the adjustable legs in the carton and are anchored to the floor with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the STEEL can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hsteel9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-9-studio.jpg?v=1790068947\u0026amp;width=1200\" alt=\"HUUM STEEL floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM STEEL 9.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhere the STEEL 9 wins on layout\u003c\/h3\u003e\n    \u003cp\u003eHUUM's manual gives 3.94 inches to the side wall and 20.5 inches wall to wall across the heater. In a room where every inch of bench matters, check this measurement before the cubic feet.\u003c\/p\u003e\n\u003cp\u003eIt holds about 330 pounds of stone, 10 boxes, twice what the CLIFF 9 carries. The circuit steps up here: HUUM's manual calls for a 50 amp breaker and 8 AWG cable, against 30 amps for the STEEL 6.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel9-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working STEEL 9 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hsteel9-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-steel-safety-rail\"\u003eSTEEL safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-steel-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-steel-9-sauna-heater-package\"\u003eHUUM STEEL 9 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-9-with_rail.jpg?width=1200\" alt=\"HUUM STEEL heater with the HUUM safety rail fitted\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater with the safety rail HUUM lists for it, sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM STEEL 9 needs\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-ladder hsteel9-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hsteel9-on\"\u003e\n\u003ctd class=\"hsteel9-kw\"\u003e240 V\u003cspan class=\"hsteel9-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW, 37.5 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hsteel9-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e7.1 kW, 32.45 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's STEEL manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the STEEL 9 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel9-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM STEEL 9 can go\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, STEEL 9\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e20.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e33.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-9-in_sauna.jpg?width=1200\" alt=\"HUUM STEEL heater installed in the corner of a sauna\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the STEEL 9 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 9 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 330 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hsteel9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel9-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 9 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e9 kW x 0.183 = about 1.65 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 15 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the STEEL 9 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel9-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hsteel9-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel9-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 9 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hsteel9-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-spec\"\u003e\n\u003ccaption\u003eFrom the STEEL User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e9 kW at 240 V, 7.1 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e283 to 460 adjusted cu. ft. at 240 V, 212 to 354 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e37.5 A at 240 V, 32.45 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 40 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e20.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hsteel9-tw\"\u003e\u003ctable class=\"hsteel9-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1006022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e33.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 9 against the rest of the STEEL range\u003c\/h2\u003e\n    \u003cp class=\"hsteel9-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel9-tw hsteel9-tw--scroll\"\u003e\u003ctable class=\"hsteel9-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-m\"\u003eSTEEL Mini 4\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-6-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-m\"\u003eSTEEL 6\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hsteel9-me\"\u003e\n\u003cspan class=\"hsteel9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-m\"\u003eSTEEL 9\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-11-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-m\"\u003eSTEEL 11\u003c\/span\u003e\u003cspan class=\"hsteel9-cmp-here\"\u003e11 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e3.94 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd class=\"hsteel9-me\"\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a STEEL is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe STEEL tops out at 11 kW and 566 cubic feet. If you want the stone on show, the CLIFF carries the same outputs in a slimmer 10.6 inch column. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hsteel9-c\"\u003e\n    \u003cp class=\"hsteel9-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 9 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel9-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM STEEL 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet on 240 volts, or 212 to 354 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 9 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM STEEL 9 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003e10 boxes. The heater holds about 330 lb (150 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM STEEL 9 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eOn 240 volts it draws 37.5 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 32.45 A, a 40 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM STEEL 9 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the STEEL 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM STEEL 9 myself?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 9 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM STEEL 9 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 9 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM STEEL 9?\u003c\/summary\u003e\u003cdiv class=\"hsteel9-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsteel9-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsteel9-c\"\u003e\n\u003cp class=\"hsteel9-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the STEEL 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hsteel9-who\"\u003e\n\u003cimg class=\"hsteel9-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsteel9-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsteel9-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514384769391,"sku":"H1006022","price":2224.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-9-studio.jpg?v=1790068947"},{"product_id":"huum-steel-11-electric-sauna-heater","title":"HUUM STEEL 11 11kW Electric Sauna Heater","description":"\u003cstyle\u003e.hsteel11{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hsteel11 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td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hsteel11 table.hsteel11-spec th,.hsteel11 table.hsteel11-spec td{display:block;width:auto}.hsteel11 table.hsteel11-spec th{border-bottom:0;padding-bottom:0}}.hsteel11 .hsteel11-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hsteel11 .hsteel11-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hsteel11 .hsteel11-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hsteel11 .hsteel11-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hsteel11 .hsteel11-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hsteel11 .hsteel11-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hsteel11 .hsteel11-close p.hsteel11-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hsteel11 .hsteel11-stat3 a{color:var(--bright)}.hsteel11 .hsteel11-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hsteel11 .hsteel11-cmp thead a .hsteel11-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hsteel11 .hsteel11-ladder.hsteel11-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hsteel11 .hsteel11-ladder.hsteel11-out td:last-child::before{content:\"Output:\\00a0\"}}.hsteel11 .hsteel11-tw + p,.hsteel11 .hsteel11-tw + h3,.hsteel11 .hsteel11-warn + p,.hsteel11 .hsteel11-warn + h3,.hsteel11 .hsteel11-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hsteel11\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cdetails class=\"hsteel11-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hsteel11-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eThe largest STEEL\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM STEEL 11 is a 11 kW floor standing electric sauna heater for rooms of 354 to 566 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eEleven kilowatts for rooms of 354 to 566 cubic feet, with the same 3.94 inch side clearance as the STEEL 9.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel11-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hsteel11-big\"\u003e354 to 566 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel11-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hsteel11-big\"\u003e43.75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable. Worth confirming your panel can carry it. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hsteel11-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hsteel11-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds about 330 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-vidrow\"\u003e\n    \u003cdiv class=\"hsteel11-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_XxhQ8VFWJk\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hsteel11-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hsteel11-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM STEEL 11 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the STEEL 11 for \u003cstrong\u003e354 to 566 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-ladder hsteel11-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel11-kw\"\u003eSTEEL Mini 4\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft. at 240 V, 106 to 159 at 208 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel11-kw\"\u003eSTEEL 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hsteel11-kw\"\u003eSTEEL 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hsteel11-on\"\u003e\n\u003ctd class=\"hsteel11-kw\"\u003eSTEEL 11 \u003cspan class=\"hsteel11-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the STEEL 11\u003c\/h3\u003e\n    \u003cp\u003eTake a room 9 feet by 8 feet with a 7.5 foot ceiling: 72 square feet of floor and 540 cubic feet, inside this heater's 354 to 566. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 583 cubic feet, which is past the top of the STEEL 11's range.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's STEEL manual gives a minimum sauna room height of 86.6 inches (2200 mm)\u003c\/b\u003e, with a regular height of 86.6 to 91 inches, and advises bringing a taller ceiling down into that range to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eWhat makes it a STEEL\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 11 is built around\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eThe STEEL wraps its stone in a stainless steel enclosure. HUUM describes it as a sleek design with small safety distances, and the manual's figures bear that out.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-block\"\u003e\n        \u003ch3\u003eA lot of stone for the size\u003c\/h3\u003e\n\u003cp\u003eIt holds about 330 lb (150 kg). HUUM describes the STEEL as holding a large amount of stone for gentle and long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eOn the floor\u003c\/h3\u003e\n\u003cp\u003eThe heater is 12.6 in W x 12.6 in D x 38.4 in H. The 6, 9 and 11 stand on the floor on the adjustable legs in the carton and are anchored to the floor with brackets, fixed with a suitable screw, preferably at least 6 x 40 mm, according to HUUM's manual.\u003c\/p\u003e\n\u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n\u003cp\u003eHUUM says the STEEL can be embedded into the sauna bench, with at least 21.7 inches (550 mm) of the heater above the bench surface. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eCLIFF and STEEL embedding flange\u003c\/a\u003e covers the cut edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hsteel11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-11-studio.jpg?v=1790068960\u0026amp;width=1200\" alt=\"HUUM STEEL floor standing electric sauna heater filled with stones\" width=\"2048\" height=\"2048\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM STEEL 11.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eThe STEEL 11 against the CLIFF 11\u003c\/h3\u003e\n    \u003cp\u003eBoth give 11 kW for the same room range on the same circuit. The difference is the space around them and the stone in them. HUUM's manual asks for 3.94 inches to the side wall here and 20.5 inches wall to wall, against 15 and 40.5 inches for the CLIFF 11, and the STEEL holds about 330 pounds of stone to the CLIFF's 165.\u003c\/p\u003e\n\u003cp\u003eAbove 566 cubic feet the STEEL range stops, and a HIVE is the next step. On 208 volts this heater makes 8.5 kW for 265 to 424 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel11-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working STEEL 11 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hsteel11-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 1.2 to 1.9 inches (3 to 5 cm). \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-steel-safety-rail\"\u003eSTEEL safety rail\u003c\/a\u003e HUUM makes for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-steel-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-cliff-steel-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-steel-11-sauna-heater-package\"\u003eHUUM STEEL 11 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-11-with_rail.jpg?width=1200\" alt=\"HUUM STEEL heater with the HUUM safety rail fitted\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater with the safety rail HUUM lists for it, sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM STEEL 11 needs\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-ladder hsteel11-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hsteel11-on\"\u003e\n\u003ctd class=\"hsteel11-kw\"\u003e240 V\u003cspan class=\"hsteel11-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e11 kW, 43.75 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hsteel11-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e8.5 kW, 37.98 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e265 to 424 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada, and a means of disconnecting all poles, a circuit breaker, goes on the power circuit before the control. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's STEEL manual says any certified control panel may be used, and that the heater may be used only with a control unit that has a timer function.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers the STEEL 11 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel11-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM STEEL 11 can go\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, STEEL 11\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e20.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.3 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e33.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the 6, 9 and 11 anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. SGS lists the CLIFF and STEEL on the condition that they are anchored.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hsteel11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-11-in_sauna.jpg?width=1200\" alt=\"HUUM STEEL heater installed in the corner of a sauna\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the STEEL 11 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 11 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003eabout 330 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across and supplies olivine diabase in 33 pound boxes.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer face goes close together, so no element is visible. HUUM recommends having a specialist lay the stone, and allows ceramic stones only at the user's own responsibility.\u003c\/p\u003e\n\u003cdiv class=\"hsteel11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual requires the stone to hide the elements completely, and warns that a sparsely filled stone container is a fire hazard.\u003c\/b\u003e\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel11-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the STEEL 11 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e11 kW x 0.183 = about 2.01 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 6.04 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 18 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the STEEL 11 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel11-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hsteel11-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hsteel11-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 11 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hsteel11-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-spec\"\u003e\n\u003ccaption\u003eFrom the STEEL User Manual USA v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e11 kW at 240 V, 8.5 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e354 to 566 adjusted cu. ft. at 240 V, 265 to 424 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e86.6 in (2200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e43.75 A at 240 V, 37.98 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 50 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 330 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e1.2 to 1.9 in (3 to 5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e12.6 in W x 12.6 in D x 38.4 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e20.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with the supplied brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hsteel11-tw\"\u003e\u003ctable class=\"hsteel11-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1006032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e33.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 11 against the rest of the STEEL range\u003c\/h2\u003e\n    \u003cp class=\"hsteel11-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hsteel11-tw hsteel11-tw--scroll\"\u003e\u003ctable class=\"hsteel11-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-mini-4-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-m\"\u003eSTEEL Mini 4\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-here\"\u003e4 kW, 106 to 177 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-6-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-m\"\u003eSTEEL 6\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-steel-9-electric-sauna-heater\"\u003e\u003cspan class=\"hsteel11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-m\"\u003eSTEEL 9\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hsteel11-me\"\u003e\n\u003cspan class=\"hsteel11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-m\"\u003eSTEEL 11\u003c\/span\u003e\u003cspan class=\"hsteel11-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e11 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e2.0 in\u003c\/td\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd class=\"hsteel11-me\"\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a STEEL is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe STEEL tops out at 11 kW and 566 cubic feet. If you want the stone on show, the CLIFF carries the same outputs in a slimmer 10.6 inch column. For a bigger room, a HIVE goes to 18 kW.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hsteel11-c\"\u003e\n    \u003cp class=\"hsteel11-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM STEEL 11 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hsteel11-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM STEEL 11 heat?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eHUUM rates it for 354 to 566 cubic feet on 240 volts, or 265 to 424 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 11 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM STEEL 11 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003e10 boxes. The heater holds about 330 lb (150 kg) and HUUM asks for stone 1.2 to 1.9 inches (3 to 5 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM STEEL 11 need?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eOn 240 volts it draws 43.75 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 37.98 A, a 50 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM STEEL 11 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the STEEL 11 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. SGS also requires CLIFF and STEEL models to be anchored in place. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM STEEL 11 myself?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 11 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM STEEL 11 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eYes, with the embedding flange. HUUM's condition is that at least 21.7 inches (550 mm) of the heater still stands above the bench surface once it is set in; the flange itself only covers the cut edge of the opening.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM STEEL 11 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM STEEL 11?\u003c\/summary\u003e\u003cdiv class=\"hsteel11-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-cliff-steel-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hsteel11-close\" id=\"order\"\u003e\n\u003cdiv class=\"hsteel11-c\"\u003e\n\u003cp class=\"hsteel11-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the STEEL 11 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hsteel11-who\"\u003e\n\u003cimg class=\"hsteel11-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hsteel11-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hsteel11-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514387915119,"sku":"H1006032","price":2391.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-steel-11-studio.jpg?v=1790068960"},{"product_id":"huum-hive-mini-6-electric-sauna-heater","title":"HUUM HIVE Mini 6 6kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhivemini6{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhivemini6 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(max-width:560px){.hhivemini6 .hhivemini6-ladder thead{position:absolute;left:-9999px}.hhivemini6 .hhivemini6-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hhivemini6 .hhivemini6-ladder tr.hhivemini6-on{background:var(--hl)}.hhivemini6 .hhivemini6-ladder td{display:block;border:0;padding:0}.hhivemini6 .hhivemini6-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hhivemini6 .hhivemini6-hl td,.hhivemini6 .hhivemini6-hl th,.hhivemini6 .hhivemini6-ladder tr.hhivemini6-on td,.hhivemini6 table.hhivemini6-cmp td.hhivemini6-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hhivemini6 table.hhivemini6-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hhivemini6 table th,.rte .hhivemini6 table td{padding:11px var(--gut)}.hhivemini6 .hhivemini6-ladder th:last-child,.hhivemini6 .hhivemini6-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hhivemini6 .hhivemini6-buy{align-items:start}.hhivemini6 .hhivemini6-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hhivemini6 table.hhivemini6-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hhivemini6 table.hhivemini6-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hhivemini6 .hhivemini6-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhivemini6 table.hhivemini6-spec th,.hhivemini6 table.hhivemini6-spec td{display:block;width:auto}.hhivemini6 table.hhivemini6-spec th{border-bottom:0;padding-bottom:0}}.hhivemini6 .hhivemini6-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhivemini6 .hhivemini6-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhivemini6 .hhivemini6-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhivemini6 .hhivemini6-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhivemini6 .hhivemini6-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhivemini6 .hhivemini6-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhivemini6 .hhivemini6-close p.hhivemini6-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhivemini6 .hhivemini6-stat3 a{color:var(--bright)}.hhivemini6 .hhivemini6-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhivemini6 .hhivemini6-cmp thead a .hhivemini6-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhivemini6 .hhivemini6-ladder.hhivemini6-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhivemini6 .hhivemini6-ladder.hhivemini6-out td:last-child::before{content:\"Output:\\00a0\"}}.hhivemini6 .hhivemini6-tw + p,.hhivemini6 .hhivemini6-tw + h3,.hhivemini6 .hhivemini6-warn + p,.hhivemini6 .hhivemini6-warn + h3,.hhivemini6 .hhivemini6-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhivemini6\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cdetails class=\"hhivemini6-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhivemini6-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eThe smallest HIVE\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE Mini 6 is a 6 kW floor standing electric sauna heater for rooms of 177 to 318 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eSix kilowatts for rooms of 177 to 318 cubic feet, in the round HIVE form, holding 331 pounds of stone.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini6-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhivemini6-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini6-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhivemini6-big\"\u003e25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini6-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhivemini6-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds 331 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-vidrow\"\u003e\n    \u003cdiv class=\"hhivemini6-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhivemini6-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhivemini6-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE Mini 6 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE Mini 6 for \u003cstrong\u003e177 to 318 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-ladder hhivemini6-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hhivemini6-on\"\u003e\n\u003ctd class=\"hhivemini6-kw\"\u003eHIVE Mini 6 \u003cspan class=\"hhivemini6-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini6-kw\"\u003eHIVE Mini 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini6-kw\"\u003eHIVE Mini 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE Mini 6\u003c\/h3\u003e\n    \u003cp\u003eTake a room 7 feet by 6 feet with a 7 foot ceiling: 42 square feet of floor and 294 cubic feet, inside this heater's 177 to 318. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 337 cubic feet, which is past the HIVE Mini 6 and into HIVE Mini 9 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE Mini 6 is round\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 331 lb (150 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 18.13 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhivemini6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-6-studio.jpg?v=1790068976\u0026amp;width=1200\" alt=\"HUUM HIVE Mini floor standing electric sauna heater filled with stones\" width=\"1000\" height=\"1000\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE Mini 6.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the HIVE Mini 6 brings to a home sauna\u003c\/h3\u003e\n    \u003cp\u003eIt carries the same 331 pounds of stone as the HIVE Mini 11 at a little over half the output. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003cp\u003eIt asks for 2.36 inches (60 mm) to the wall beside it and 22.84 inches wall to wall across it, and it runs on the same 30 amp circuit as the DROP 6 and CLIFF 6.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini6-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE Mini 6 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhivemini6-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-mini-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-mini-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-mini-6-sauna-heater-package\"\u003eHUUM HIVE Mini 6 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE Mini 6 needs\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-ladder hhivemini6-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhivemini6-on\"\u003e\n\u003ctd class=\"hhivemini6-kw\"\u003e240 V\u003cspan class=\"hhivemini6-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6 kW, 25 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhivemini6-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e4.5 kW, 21.63 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE Mini 6 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini6-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE Mini 6 can go\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE Mini 6\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e22.84 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e35.2 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-6-in_sauna.jpg?width=1200\" alt=\"HUUM HIVE Mini set into a recess in a sauna bench\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE Mini 6 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 6 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e331 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini6-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-6-top.jpg?width=1200\" alt=\"Top of the HUUM HIVE Mini with the HUUM logo\" width=\"1752\" height=\"1752\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini6-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE Mini 6 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e6 kW x 0.183 = about 1.10 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 3.29 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 10 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE Mini 6 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini6-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhivemini6-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini6-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 6 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhivemini6-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e6 kW at 240 V, 4.5 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e177 to 318 adjusted cu. ft. at 240 V, 142 to 248 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e25 A at 240 V, 21.63 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e22.84 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhivemini6-tw\"\u003e\u003ctable class=\"hhivemini6-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1002012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e35.2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 6 against the rest of the HIVE Mini range\u003c\/h2\u003e\n    \u003cp class=\"hhivemini6-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini6-tw hhivemini6-tw--scroll\"\u003e\u003ctable class=\"hhivemini6-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hhivemini6-me\"\u003e\n\u003cspan class=\"hhivemini6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-m\"\u003eHIVE Mini 6\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-9-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-m\"\u003eHIVE Mini 9\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-11-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-m\"\u003eHIVE Mini 11\u003c\/span\u003e\u003cspan class=\"hhivemini6-cmp-here\"\u003e10.6 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e6 AWG\u003c\/td\u003e\n\u003ctd\u003e6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e3.53 in\u003c\/td\u003e\n\u003ctd\u003e4.34 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hhivemini6-me\"\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE Mini is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe HIVE Mini tops out at 10.6 kW and 566 cubic feet. Above that the full size HIVE takes over, from 12 to 18 kW, on two circuits and with the UKU extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhivemini6-c\"\u003e\n    \u003cp class=\"hhivemini6-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 6 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini6-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE Mini 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet on 240 volts, or 142 to 248 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 6 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE Mini 6 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003e10 boxes. The heater holds 331 lb (150 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE Mini 6 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eOn 240 volts it draws 25 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 21.63 A, a 30 A breaker and 10 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE Mini 6 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE Mini 6 myself?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 6 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE Mini 6 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 6 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE Mini 6?\u003c\/summary\u003e\u003cdiv class=\"hhivemini6-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhivemini6-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhivemini6-c\"\u003e\n\u003cp class=\"hhivemini6-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE Mini 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini6-who\"\u003e\n\u003cimg class=\"hhivemini6-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhivemini6-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhivemini6-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514391683439,"sku":"H1002012","price":2502.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-6-studio.jpg?v=1790068976"},{"product_id":"huum-hive-mini-9-electric-sauna-heater","title":"HUUM HIVE Mini 9 9kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhivemini9{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhivemini9 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video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhivemini9 .hhivemini9-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhivemini9 .hhivemini9-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhivemini9 .hhivemini9-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhivemini9 .hhivemini9-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhivemini9 .hhivemini9-close p.hhivemini9-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhivemini9 .hhivemini9-stat3 a{color:var(--bright)}.hhivemini9 .hhivemini9-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhivemini9 .hhivemini9-cmp thead a .hhivemini9-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhivemini9 .hhivemini9-ladder.hhivemini9-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhivemini9 .hhivemini9-ladder.hhivemini9-out td:last-child::before{content:\"Output:\\00a0\"}}.hhivemini9 .hhivemini9-tw + p,.hhivemini9 .hhivemini9-tw + h3,.hhivemini9 .hhivemini9-warn + p,.hhivemini9 .hhivemini9-warn + h3,.hhivemini9 .hhivemini9-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhivemini9\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cdetails class=\"hhivemini9-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhivemini9-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eNine kilowatts, round\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE Mini 9 is a 9 kW floor standing electric sauna heater for rooms of 283 to 460 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eThe HIVE Mini 9 heats rooms of 283 to 460 cubic feet from the same 18 1\/8 inch diameter body as the Mini 6.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini9-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhivemini9-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini9-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhivemini9-big\"\u003e37.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 6 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini9-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhivemini9-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds 331 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-vidrow\"\u003e\n    \u003cdiv class=\"hhivemini9-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhivemini9-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhivemini9-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE Mini 9 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE Mini 9 for \u003cstrong\u003e283 to 460 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-ladder hhivemini9-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9-kw\"\u003eHIVE Mini 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhivemini9-on\"\u003e\n\u003ctd class=\"hhivemini9-kw\"\u003eHIVE Mini 9 \u003cspan class=\"hhivemini9-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9-kw\"\u003eHIVE Mini 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE Mini 9\u003c\/h3\u003e\n    \u003cp\u003eTake a room 9 feet by 7 feet with a 7 foot ceiling: 63 square feet of floor and 441 cubic feet, inside this heater's 283 to 460. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 484 cubic feet, which is past the HIVE Mini 9 and into HIVE Mini 11 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE Mini 9 is round\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 331 lb (150 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 18.13 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhivemini9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-9-studio.jpg?v=1790068992\u0026amp;width=1200\" alt=\"HUUM HIVE Mini floor standing electric sauna heater filled with stones\" width=\"1000\" height=\"1000\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE Mini 9.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eThe cable is heavier on the HIVE Mini 9\u003c\/h3\u003e\n    \u003cp\u003eHUUM's HIVE manual calls for a 50 amp breaker with 6 AWG cable at 240 volts, a heavier cable than the 8 AWG its CLIFF and STEEL manuals give for a 9 kW heater. Price the cable run with that figure, not the one from another heater's manual.\u003c\/p\u003e\n\u003cp\u003eIt asks for 3.53 inches to the wall beside it and 25.19 inches wall to wall across it, and holds 331 pounds of stone, 10 boxes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE Mini 9 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhivemini9-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-mini-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-mini-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-mini-9-sauna-heater-package\"\u003eHUUM HIVE Mini 9 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE Mini 9 needs\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-ladder hhivemini9-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhivemini9-on\"\u003e\n\u003ctd class=\"hhivemini9-kw\"\u003e240 V\u003cspan class=\"hhivemini9-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW, 37.5 A, 50 A breaker, 6 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhivemini9-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e6.75 kW, 32.45 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE Mini 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE Mini 9 can go\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE Mini 9\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e3.53 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e25.19 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e39.7 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-9-in_sauna.jpg?width=1200\" alt=\"HUUM HIVE Mini set into a recess in a sauna bench\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE Mini 9 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 9 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e331 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-9-top.jpg?width=1200\" alt=\"Top of the HUUM HIVE Mini with the HUUM logo\" width=\"1752\" height=\"1752\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE Mini 9 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e9 kW x 0.183 = about 1.65 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 15 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE Mini 9 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini9-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhivemini9-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 9 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhivemini9-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e9 kW at 240 V, 6.75 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e283 to 460 adjusted cu. ft. at 240 V, 212 to 354 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e37.5 A at 240 V, 32.45 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 40 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e6 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e3.53 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e25.19 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhivemini9-tw\"\u003e\u003ctable class=\"hhivemini9-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1002022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e39.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 9 against the rest of the HIVE Mini range\u003c\/h2\u003e\n    \u003cp class=\"hhivemini9-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini9-tw hhivemini9-tw--scroll\"\u003e\u003ctable class=\"hhivemini9-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-6-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-m\"\u003eHIVE Mini 6\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hhivemini9-me\"\u003e\n\u003cspan class=\"hhivemini9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-m\"\u003eHIVE Mini 9\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-11-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-m\"\u003eHIVE Mini 11\u003c\/span\u003e\u003cspan class=\"hhivemini9-cmp-here\"\u003e10.6 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e6 AWG\u003c\/td\u003e\n\u003ctd\u003e6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e3.53 in\u003c\/td\u003e\n\u003ctd\u003e4.34 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd class=\"hhivemini9-me\"\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE Mini is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe HIVE Mini tops out at 10.6 kW and 566 cubic feet. Above that the full size HIVE takes over, from 12 to 18 kW, on two circuits and with the UKU extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhivemini9-c\"\u003e\n    \u003cp class=\"hhivemini9-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 9 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini9-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE Mini 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet on 240 volts, or 212 to 354 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 9 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE Mini 9 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003e10 boxes. The heater holds 331 lb (150 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE Mini 9 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eOn 240 volts it draws 37.5 A and HUUM specifies a 50 A breaker with 6 AWG cable. On 208 volts it is 32.45 A, a 40 A breaker and 8 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE Mini 9 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE Mini 9 myself?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 9 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE Mini 9 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 9 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE Mini 9?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhivemini9-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhivemini9-c\"\u003e\n\u003cp class=\"hhivemini9-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE Mini 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9-who\"\u003e\n\u003cimg class=\"hhivemini9-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhivemini9-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhivemini9-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514397974895,"sku":"H1002022","price":2657.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-9-studio.jpg?v=1790068992"},{"product_id":"huum-hive-mini-11-electric-sauna-heater","title":"HUUM HIVE Mini 11 10.6kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhivemini11{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhivemini11 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.hhivemini11-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhivemini11 .hhivemini11-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhivemini11 .hhivemini11-close p.hhivemini11-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhivemini11 .hhivemini11-stat3 a{color:var(--bright)}.hhivemini11 .hhivemini11-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhivemini11 .hhivemini11-cmp thead a .hhivemini11-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhivemini11 .hhivemini11-ladder.hhivemini11-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhivemini11 .hhivemini11-ladder.hhivemini11-out td:last-child::before{content:\"Output:\\00a0\"}}.hhivemini11 .hhivemini11-tw + p,.hhivemini11 .hhivemini11-tw + h3,.hhivemini11 .hhivemini11-warn + p,.hhivemini11 .hhivemini11-warn + h3,.hhivemini11 .hhivemini11-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhivemini11\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cdetails class=\"hhivemini11-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhivemini11-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eThe largest HIVE on one circuit\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE Mini 11 is a 10.6 kW floor standing electric sauna heater for rooms of 354 to 566 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003e10.6 kilowatts for rooms of 354 to 566 cubic feet. It is the largest HIVE that runs from a single circuit and from the UKU control's main module on its own.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini11-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhivemini11-big\"\u003e354 to 566 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini11-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhivemini11-big\"\u003e43.75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 6 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhivemini11-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhivemini11-big\"\u003eControl and 10 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and this heater holds 331 lb (150 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-vidrow\"\u003e\n    \u003cdiv class=\"hhivemini11-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhivemini11-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhivemini11-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE Mini 11 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE Mini 11 for \u003cstrong\u003e354 to 566 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-ladder hhivemini11-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini11-kw\"\u003eHIVE Mini 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini11-kw\"\u003eHIVE Mini 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhivemini11-on\"\u003e\n\u003ctd class=\"hhivemini11-kw\"\u003eHIVE Mini 11 \u003cspan class=\"hhivemini11-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE Mini 11\u003c\/h3\u003e\n    \u003cp\u003eTake a room 10 feet by 7.5 feet with a 7 foot ceiling: 75 square feet of floor and 525 cubic feet, inside this heater's 354 to 566. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 568 cubic feet, which is past the top of the HIVE Mini 11's range.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE Mini 11 is round\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 331 lb (150 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 18.13 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhivemini11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-11-studio.jpg?v=1790069005\u0026amp;width=1200\" alt=\"HUUM HIVE Mini floor standing electric sauna heater filled with stones\" width=\"1000\" height=\"1000\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE Mini 11.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhere the HIVE Mini 11 sits in the range\u003c\/h3\u003e\n    \u003cp\u003eThe UKU's main module carries heaters up to 11 kW. The HIVE Mini 11 is inside that, so it needs no extension box and no second circuit. Every full size HIVE needs both.\u003c\/p\u003e\n\u003cp\u003eHUUM's manual calls for a 50 amp breaker with 6 AWG cable, and asks for 4.34 inches to the wall beside the heater and 26.78 inches wall to wall across it. On 208 volts it makes 7.9 kW for 265 to 424 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini11-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE Mini 11 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhivemini11-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \n      \u003ctr\u003e\n\u003cth\u003e10 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-mini-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-mini-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-mini-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-mini-11-sauna-heater-package\"\u003eHUUM HIVE Mini 11 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE Mini 11 needs\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \n    \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-ladder hhivemini11-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhivemini11-on\"\u003e\n\u003ctd class=\"hhivemini11-kw\"\u003e240 V\u003cspan class=\"hhivemini11-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e10.6 kW, 43.75 A, 50 A breaker, 6 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhivemini11-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e7.9 kW, 37.98 A, 50 A breaker, 6 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e265 to 424 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE Mini 11 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini11-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE Mini 11 can go\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE Mini 11\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e4.34 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e26.78 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e39.7 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-11-in_sauna.jpg?width=1200\" alt=\"HUUM HIVE Mini set into a recess in a sauna bench\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE Mini 11 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 10.6 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e331 lb (150 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e10 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini11-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhivemini11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-11-top.jpg?width=1200\" alt=\"Top of the HUUM HIVE Mini with the HUUM logo\" width=\"1752\" height=\"1752\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini11-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE Mini 11 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e10.6 kW x 0.183 = about 1.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 5.82 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 17 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE Mini 11 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini11-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhivemini11-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 10 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini11-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 11 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhivemini11-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e10.6 kW at 240 V, 7.9 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e354 to 566 adjusted cu. ft. at 240 V, 265 to 424 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e43.75 A at 240 V, 37.98 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 50 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e6 AWG at 240 V, 6 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg), 10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e18.13 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e4.34 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e26.78 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhivemini11-tw\"\u003e\u003ctable class=\"hhivemini11-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1002032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e39.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 11 against the rest of the HIVE Mini range\u003c\/h2\u003e\n    \u003cp class=\"hhivemini11-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhivemini11-tw hhivemini11-tw--scroll\"\u003e\u003ctable class=\"hhivemini11-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-6-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-m\"\u003eHIVE Mini 6\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-here\"\u003e6 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-mini-9-electric-sauna-heater\"\u003e\u003cspan class=\"hhivemini11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-m\"\u003eHIVE Mini 9\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hhivemini11-me\"\u003e\n\u003cspan class=\"hhivemini11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-m\"\u003eHIVE Mini 11\u003c\/span\u003e\u003cspan class=\"hhivemini11-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e10.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e6 AWG\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e2.36 in\u003c\/td\u003e\n\u003ctd\u003e3.53 in\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e4.34 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd class=\"hhivemini11-me\"\u003e10 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE Mini is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe HIVE Mini tops out at 10.6 kW and 566 cubic feet. Above that the full size HIVE takes over, from 12 to 18 kW, on two circuits and with the UKU extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhivemini11-c\"\u003e\n    \u003cp class=\"hhivemini11-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE Mini 11 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhivemini11-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE Mini 11 heat?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eHUUM rates it for 354 to 566 cubic feet on 240 volts, or 265 to 424 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 11 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE Mini 11 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003e10 boxes. The heater holds 331 lb (150 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE Mini 11 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eOn 240 volts it draws 43.75 A and HUUM specifies a 50 A breaker with 6 AWG cable. On 208 volts it is 37.98 A, a 50 A breaker and 6 AWG. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE Mini 11 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE Mini 11 myself?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 11 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE Mini 11 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE Mini 11 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eNo. The extension box is for HUUM heaters above 11 kW, which means the HIVE 12, 15 and 18. This heater runs from the UKU's main module on its own.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE Mini 11?\u003c\/summary\u003e\u003cdiv class=\"hhivemini11-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhivemini11-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhivemini11-c\"\u003e\n\u003cp class=\"hhivemini11-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE Mini 11 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini11-who\"\u003e\n\u003cimg class=\"hhivemini11-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhivemini11-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhivemini11-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514402529647,"sku":"H1002032","price":2785.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-11-studio.jpg?v=1790069005"},{"product_id":"huum-hive-12-electric-sauna-heater","title":"HUUM HIVE 12 12kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhive12{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhive12 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summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hhive12 .hhive12-faq details[open] summary::after{transform:rotate(225deg)}.hhive12 .hhive12-faq .hhive12-fb{padding:0 0 18px;max-width:68ch}.hhive12 .hhive12-faq .hhive12-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hhive12 .hhive12-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hhive12 .hhive12-close h2{color:#fff;max-width:22ch}.hhive12 .hhive12-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hhive12 .hhive12-close .hhive12-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hhive12 .hhive12-close .hhive12-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hhive12 .hhive12-close .hhive12-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hhive12 .hhive12-close .hhive12-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hhive12 .hhive12-close .hhive12-who span{display:block}.hhive12 .hhive12-c .hhive12-btn,.hhive12 .hhive12-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hhive12 .hhive12-c .hhive12-btn:hover,.hhive12 .hhive12-btn:hover{background:var(--ink);color:#fff}.hhive12 .hhive12-close .hhive12-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hhive12 .hhive12-close .hhive12-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hhive12 .hhive12-pairup{grid-template-columns:1fr;gap:24px}.hhive12 .hhive12-chk{grid-template-columns:1fr}.hhive12 .hhive12-vidrow{flex-direction:column;align-items:stretch}.hhive12 .hhive12-vid{--cap:380px;align-self:center}.hhive12 .hhive12-vidrow{gap:24px}.hhive12 .hhive12-c{padding:0 16px}.hhive12 section{padding:40px 0}.hhive12 section:first-of-type{padding-top:20px}.hhive12 h2{font-size:23px}.hhive12 p.hhive12-lead{font-size:17px}.hhive12 .hhive12-stat3{grid-template-columns:1fr}.hhive12 .hhive12-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hhive12 .hhive12-stat3\u003ediv:last-child{border-bottom:0}.hhive12 .hhive12-split{grid-template-columns:1fr;gap:24px}.hhive12 .hhive12-buy{grid-template-columns:1fr}.hhive12 .hhive12-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hhive12 .hhive12-toc\u003esummary{display:none}.hhive12 .hhive12-toc ol{display:grid !important}}@media screen and (max-width:560px){.hhive12 .hhive12-ladder thead{position:absolute;left:-9999px}.hhive12 .hhive12-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hhive12 .hhive12-ladder tr.hhive12-on{background:var(--hl)}.hhive12 .hhive12-ladder td{display:block;border:0;padding:0}.hhive12 .hhive12-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hhive12 .hhive12-hl td,.hhive12 .hhive12-hl th,.hhive12 .hhive12-ladder tr.hhive12-on td,.hhive12 table.hhive12-cmp td.hhive12-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hhive12 table.hhive12-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hhive12 table th,.rte .hhive12 table td{padding:11px var(--gut)}.hhive12 .hhive12-ladder th:last-child,.hhive12 .hhive12-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hhive12 .hhive12-buy{align-items:start}.hhive12 .hhive12-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hhive12 table.hhive12-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hhive12 table.hhive12-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hhive12 .hhive12-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhive12 table.hhive12-spec th,.hhive12 table.hhive12-spec td{display:block;width:auto}.hhive12 table.hhive12-spec th{border-bottom:0;padding-bottom:0}}.hhive12 .hhive12-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhive12 .hhive12-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhive12 .hhive12-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhive12 .hhive12-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhive12 .hhive12-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhive12 .hhive12-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhive12 .hhive12-close p.hhive12-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhive12 .hhive12-stat3 a{color:var(--bright)}.hhive12 .hhive12-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhive12 .hhive12-cmp thead a .hhive12-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhive12 .hhive12-ladder.hhive12-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhive12 .hhive12-ladder.hhive12-out td:last-child::before{content:\"Output:\\00a0\"}}.hhive12 .hhive12-tw + p,.hhive12 .hhive12-tw + h3,.hhive12 .hhive12-warn + p,.hhive12 .hhive12-warn + h3,.hhive12 .hhive12-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhive12\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cdetails class=\"hhive12-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhive12-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eThe full size HIVE\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE 12 is a 12 kW floor standing electric sauna heater for rooms of 424 to 636 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eTwelve kilowatts for rooms of 424 to 636 cubic feet, holding 528 pounds of stone, the first of the full size HIVE heaters.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive12-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhive12-big\"\u003e424 to 636 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive12-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhive12-big\"\u003e50 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for two circuits, each on a 30 A breaker with 10 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive12-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhive12-big\"\u003eControl and 16 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, with the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e at this output, and this heater holds 528 lb (240 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-vidrow\"\u003e\n    \u003cdiv class=\"hhive12-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhive12-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhive12-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE 12 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE 12 for \u003cstrong\u003e424 to 636 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-ladder hhive12-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hhive12-on\"\u003e\n\u003ctd class=\"hhive12-kw\"\u003eHIVE 12 \u003cspan class=\"hhive12-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft. at 240 V, 318 to 495 at 208 V\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12-kw\"\u003eHIVE 15\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft. at 240 V, 389 to 601 at 208 V\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12-kw\"\u003eHIVE 18\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft. at 240 V, 477 to 742 at 208 V\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE 12\u003c\/h3\u003e\n    \u003cp\u003eTake a room 10 feet by 8 feet with a 7.5 foot ceiling: 80 square feet of floor and 600 cubic feet, inside this heater's 424 to 636. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 643 cubic feet, which is past the HIVE 12 and into HIVE 15 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE 12 is round\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 528 lb (240 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 22.06 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhive12-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-12-studio.jpg?v=1790069018\u0026amp;width=1200\" alt=\"HUUM HIVE floor standing electric sauna heater filled with stones\" width=\"1144\" height=\"1144\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE 12.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat changes at 12 kW\u003c\/h3\u003e\n    \u003cp\u003eTwo things change above the HIVE Mini. The heater takes two supply circuits: HUUM's manual calls for two 30 amp breakers with 10 AWG cable on each. And the UKU control needs its extension box, because the main module carries heaters up to 11 kW.\u003c\/p\u003e\n\u003cp\u003eThe stone load rises to 16 boxes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE 12 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhive12-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThe UKU extension box\u003c\/th\u003e\n\u003ctd\u003eRequired at this output: the UKU main module carries heaters up to 11 kW. \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eHUUM UKU extension box\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e16 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-12-sauna-heater-package\"\u003eHUUM HIVE 12 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE 12 needs\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired on two supply circuits by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cp\u003eThis heater takes \u003cstrong\u003etwo supply circuits\u003c\/strong\u003e, each on its own breaker and cable, which is why the figures below come in pairs.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-ladder hhive12-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhive12-on\"\u003e\n\u003ctd class=\"hhive12-kw\"\u003e240 V\u003cspan class=\"hhive12-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e12 kW, 50 A, 30 + 30 A (two circuits) breaker, 10 + 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhive12-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW, 43.27 A, 30 + 30 A (two circuits) breaker, 10 + 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e318 to 495 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE 12 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE 12 can go\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE 12\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e48.5 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive12-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-12-dark_sauna.jpg?width=1200\" alt=\"HUUM HIVE heater in a sauna with a dark wall\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE 12 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 12 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e528 lb (240 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e16 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. The box count is from the manual's table of 33 pound boxes; the manual's text gives about 551 pounds (250 kg), so order the full 16. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhive12-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive12-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-cage.jpg?width=1200\" alt=\"HUUM HIVE heater cage without stones, heating elements visible\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE 12 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e12 kW x 0.183 = about 2.20 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 6.59 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 20 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE 12 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhive12-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhive12-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control and the UKU extension box, the stone, and the electrical work. The control and 16 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 12 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhive12-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e12 kW at 240 V, 9 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e424 to 636 adjusted cu. ft. at 240 V, 318 to 495 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 43.27 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 + 30 A (two circuits) at 240 V, 30 + 30 A (two circuits) at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 + 10 AWG at 240 V, 10 + 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately; UKU extension box required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhive12-tw\"\u003e\u003ctable class=\"hhive12-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1003012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e48.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz, two circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 12 against the rest of the HIVE range\u003c\/h2\u003e\n    \u003cp class=\"hhive12-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhive12-tw hhive12-tw--scroll\"\u003e\u003ctable class=\"hhive12-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hhive12-me\"\u003e\n\u003cspan class=\"hhive12-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-m\"\u003eHIVE 12\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-15-electric-sauna-heater\"\u003e\u003cspan class=\"hhive12-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-m\"\u003eHIVE 15\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-here\"\u003e15 kW, 530 to 813 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-18-electric-sauna-heater\"\u003e\u003cspan class=\"hhive12-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-m\"\u003eHIVE 18\u003c\/span\u003e\u003cspan class=\"hhive12-cmp-here\"\u003e18 kW, 636 to 989 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e12 kW\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e62.5 A\u003c\/td\u003e\n\u003ctd\u003e75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e30 + 30 A (two circuits)\u003c\/td\u003e\n\u003ctd\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003ctd\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e10 + 10 AWG\u003c\/td\u003e\n\u003ctd\u003e6 + 6 AWG\u003c\/td\u003e\n\u003ctd\u003e6 + 6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e4.72 in\u003c\/td\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003ctd\u003e7.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hhive12-me\"\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eFor a room under 424 cubic feet a full size HIVE is more heater than you need: the HIVE Mini covers 177 to 566 cubic feet on a single circuit, without the extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhive12-c\"\u003e\n    \u003cp class=\"hhive12-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 12 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhive12-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE 12 heat?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eHUUM rates it for 424 to 636 cubic feet on 240 volts, or 318 to 495 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 12 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form. At this output the UKU also needs the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE 12 need?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003e16 boxes. The heater holds 528 lb (240 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE 12 need?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eOn 240 volts it draws 50 A and HUUM specifies two circuits, each on a 30 A breaker with 10 AWG cable. On 208 volts it is 43.27 A, two 30 A breakers with 10 AWG cable on each. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE 12 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE 12 myself?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 12 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE 12 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 12 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eYes. The UKU's main module carries heaters up to 11 kW, so at this output the UKU extension box is required, mounted outside the steam room near the main module.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE 12?\u003c\/summary\u003e\u003cdiv class=\"hhive12-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhive12-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhive12-c\"\u003e\n\u003cp class=\"hhive12-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE 12 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhive12-who\"\u003e\n\u003cimg class=\"hhive12-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhive12-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhive12-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514410885487,"sku":"H1003012","price":2848.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-12-studio.jpg?v=1790069018"},{"product_id":"huum-hive-15-electric-sauna-heater","title":"HUUM HIVE 15 15kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhive15{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhive15 *{box-sizing:border-box}.hhive15 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(max-width:560px){.hhive15 .hhive15-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhive15 table.hhive15-spec th,.hhive15 table.hhive15-spec td{display:block;width:auto}.hhive15 table.hhive15-spec th{border-bottom:0;padding-bottom:0}}.hhive15 .hhive15-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhive15 .hhive15-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhive15 .hhive15-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhive15 .hhive15-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhive15 .hhive15-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhive15 .hhive15-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhive15 .hhive15-close p.hhive15-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhive15 .hhive15-stat3 a{color:var(--bright)}.hhive15 .hhive15-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhive15 .hhive15-cmp thead a .hhive15-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhive15 .hhive15-ladder.hhive15-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhive15 .hhive15-ladder.hhive15-out td:last-child::before{content:\"Output:\\00a0\"}}.hhive15 .hhive15-tw + p,.hhive15 .hhive15-tw + h3,.hhive15 .hhive15-warn + p,.hhive15 .hhive15-warn + h3,.hhive15 .hhive15-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhive15\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cdetails class=\"hhive15-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhive15-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eFifteen kilowatts\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE 15 is a 15 kW floor standing electric sauna heater for rooms of 530 to 813 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eThe HIVE 15 heats rooms of 530 to 813 cubic feet, on the same 22 1\/16 inch body as the HIVE 12.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive15-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhive15-big\"\u003e530 to 813 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive15-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhive15-big\"\u003e62.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for two circuits, each on a 50 A breaker with 6 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code, which can call for more.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive15-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhive15-big\"\u003eControl and 16 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, with the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e at this output, and this heater holds 528 lb (240 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-vidrow\"\u003e\n    \u003cdiv class=\"hhive15-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhive15-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhive15-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE 15 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE 15 for \u003cstrong\u003e530 to 813 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-ladder hhive15-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive15-kw\"\u003eHIVE 12\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft. at 240 V, 318 to 495 at 208 V\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhive15-on\"\u003e\n\u003ctd class=\"hhive15-kw\"\u003eHIVE 15 \u003cspan class=\"hhive15-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft. at 240 V, 389 to 601 at 208 V\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive15-kw\"\u003eHIVE 18\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft. at 240 V, 477 to 742 at 208 V\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE 15\u003c\/h3\u003e\n    \u003cp\u003eTake a room 12 feet by 9 feet with a 7 foot ceiling: 108 square feet of floor and 756 cubic feet, inside this heater's 530 to 813. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 799 cubic feet, which is still inside the HIVE 15's range.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE 15 is round\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 528 lb (240 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 22.06 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhive15-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-15-studio.jpg?v=1790069031\u0026amp;width=1200\" alt=\"HUUM HIVE floor standing electric sauna heater filled with stones\" width=\"1144\" height=\"1144\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE 15.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eThe HIVE 15 is a panel question\u003c\/h3\u003e\n    \u003cp\u003eAt 240 volts it draws 62.5 amps across two circuits, and HUUM's manual calls for two 50 amp breakers with 6 AWG cable on each. Have an electrician look at the panel before you order.\u003c\/p\u003e\n\u003cp\u003eIt asks for 5.9 inches to the wall beside it and 33.84 inches wall to wall across it, and like every full size HIVE it holds 528 pounds of stone and needs the UKU extension box.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive15-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE 15 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhive15-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThe UKU extension box\u003c\/th\u003e\n\u003ctd\u003eRequired at this output: the UKU main module carries heaters up to 11 kW. \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eHUUM UKU extension box\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e16 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-15-sauna-heater-package\"\u003eHUUM HIVE 15 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE 15 needs\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired on two supply circuits by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit.\u003c\/p\u003e\n    \u003cp\u003eThis heater takes \u003cstrong\u003etwo supply circuits\u003c\/strong\u003e, each on its own breaker and cable, which is why the figures below come in pairs.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-ladder hhive15-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhive15-on\"\u003e\n\u003ctd class=\"hhive15-kw\"\u003e240 V\u003cspan class=\"hhive15-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e15 kW, 62.5 A, 50 + 50 A (two circuits) breaker, 6 + 6 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhive15-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e11.25 kW, 54.09 A, 40 + 40 A (two circuits) breaker, 8 + 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e389 to 601 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE 15 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive15-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE 15 can go\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE 15\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e33.84 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e50.7 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive15-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-15-dark_sauna.jpg?width=1200\" alt=\"HUUM HIVE heater in a sauna with a dark wall\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE 15 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 15 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e528 lb (240 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e16 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. The box count is from the manual's table of 33 pound boxes; the manual's text gives about 551 pounds (250 kg), so order the full 16. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhive15-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive15-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-cage_66ef71f3-57fa-4de7-875d-c48a5fdbb6ba.jpg?width=1200\" alt=\"HUUM HIVE heater cage without stones, heating elements visible\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive15-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE 15 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e15 kW x 0.183 = about 2.75 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 8.23 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 25 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE 15 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhive15-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhive15-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control and the UKU extension box, the stone, and the electrical work. The control and 16 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive15-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 15 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhive15-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e15 kW at 240 V, 11.25 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e530 to 813 adjusted cu. ft. at 240 V, 389 to 601 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e62.5 A at 240 V, 54.09 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 + 50 A (two circuits) at 240 V, 40 + 40 A (two circuits) at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e6 + 6 AWG at 240 V, 8 + 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e33.84 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately; UKU extension box required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhive15-tw\"\u003e\u003ctable class=\"hhive15-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1003022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e50.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz, two circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 15 against the rest of the HIVE range\u003c\/h2\u003e\n    \u003cp class=\"hhive15-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhive15-tw hhive15-tw--scroll\"\u003e\u003ctable class=\"hhive15-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003e\u003cspan class=\"hhive15-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-m\"\u003eHIVE 12\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-here\"\u003e12 kW, 424 to 636 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hhive15-me\"\u003e\n\u003cspan class=\"hhive15-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-m\"\u003eHIVE 15\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-18-electric-sauna-heater\"\u003e\u003cspan class=\"hhive15-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-m\"\u003eHIVE 18\u003c\/span\u003e\u003cspan class=\"hhive15-cmp-here\"\u003e18 kW, 636 to 989 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e15 kW\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e62.5 A\u003c\/td\u003e\n\u003ctd\u003e75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 + 30 A (two circuits)\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003ctd\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 + 10 AWG\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e6 + 6 AWG\u003c\/td\u003e\n\u003ctd\u003e6 + 6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e5.9 in\u003c\/td\u003e\n\u003ctd\u003e7.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd class=\"hhive15-me\"\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eFor a room under 424 cubic feet a full size HIVE is more heater than you need: the HIVE Mini covers 177 to 566 cubic feet on a single circuit, without the extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhive15-c\"\u003e\n    \u003cp class=\"hhive15-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 15 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhive15-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE 15 heat?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eHUUM rates it for 530 to 813 cubic feet on 240 volts, or 389 to 601 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 15 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form. At this output the UKU also needs the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE 15 need?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003e16 boxes. The heater holds 528 lb (240 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE 15 need?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eOn 240 volts it draws 62.5 A and HUUM specifies two circuits, each on a 50 A breaker with 6 AWG cable. On 208 volts it is 54.09 A, two 40 A breakers with 8 AWG cable on each. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE 15 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE 15 myself?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 15 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE 15 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 15 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eYes. The UKU's main module carries heaters up to 11 kW, so at this output the UKU extension box is required, mounted outside the steam room near the main module.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE 15?\u003c\/summary\u003e\u003cdiv class=\"hhive15-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhive15-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhive15-c\"\u003e\n\u003cp class=\"hhive15-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE 15 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhive15-who\"\u003e\n\u003cimg class=\"hhive15-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhive15-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhive15-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514414293359,"sku":"H1003022","price":3088.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-15-studio.jpg?v=1790069031"},{"product_id":"huum-hive-18-electric-sauna-heater","title":"HUUM HIVE 18 18kW Electric Sauna Heater","description":"\u003cstyle\u003e.hhive18{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hhive18 *{box-sizing:border-box}.hhive18 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(max-width:560px){.hhive18 .hhive18-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hhive18 table.hhive18-spec th,.hhive18 table.hhive18-spec td{display:block;width:auto}.hhive18 table.hhive18-spec th{border-bottom:0;padding-bottom:0}}.hhive18 .hhive18-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hhive18 .hhive18-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hhive18 .hhive18-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hhive18 .hhive18-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhive18 .hhive18-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhive18 .hhive18-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhive18 .hhive18-close p.hhive18-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhive18 .hhive18-stat3 a{color:var(--bright)}.hhive18 .hhive18-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhive18 .hhive18-cmp thead a .hhive18-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhive18 .hhive18-ladder.hhive18-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhive18 .hhive18-ladder.hhive18-out td:last-child::before{content:\"Output:\\00a0\"}}.hhive18 .hhive18-tw + p,.hhive18 .hhive18-tw + h3,.hhive18 .hhive18-warn + p,.hhive18 .hhive18-warn + h3,.hhive18 .hhive18-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hhive18\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cdetails class=\"hhive18-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhive18-ct\"\u003e9 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eThe largest HUUM electric heater\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM HIVE 18 is a 18 kW floor standing electric sauna heater for rooms of 636 to 989 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eEighteen kilowatts for rooms of 636 to 989 cubic feet. Nothing in HUUM's electric range heats a bigger room.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive18-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hhive18-big\"\u003e636 to 989 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive18-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hhive18-big\"\u003e75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for two circuits, each on a 50 A breaker with 6 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hhive18-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hhive18-big\"\u003eControl and 16 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, with the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e at this output, and this heater holds 528 lb (240 kg) of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"video\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eWatch\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-vidrow\"\u003e\n    \u003cdiv class=\"hhive18-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hhive18-vidbody\"\u003e\n    \u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n    \u003cp\u003eHUUM filmed this itself. Its heater installation films are made for Europe and show European wiring, so we do not run them here: the sauna side of the job is the same, the electrical side is not.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003c\/section\u003e\n\n\n\u003csection class=\"hhive18-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM HIVE 18 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the HIVE 18 for \u003cstrong\u003e636 to 989 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty does not apply if the heater and room are dimensioned incorrectly.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-ladder hhive18-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive18-kw\"\u003eHIVE 12\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft. at 240 V, 318 to 495 at 208 V\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive18-kw\"\u003eHIVE 15\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft. at 240 V, 389 to 601 at 208 V\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhive18-on\"\u003e\n\u003ctd class=\"hhive18-kw\"\u003eHIVE 18 \u003cspan class=\"hhive18-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft. at 240 V, 477 to 742 at 208 V\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the HIVE 18\u003c\/h3\u003e\n    \u003cp\u003eTake a room 13 feet by 10 feet with a 7 foot ceiling: 130 square feet of floor and 910 cubic feet, inside this heater's 636 to 989. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 953 cubic feet, which is still inside the HIVE 18's range.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a HIVE is 77 inches (1950 mm).\u003c\/b\u003e HUUM recommends 79 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eWhat makes it a HIVE\u003c\/p\u003e\n    \u003ch2\u003eWhy the HIVE 18 is round\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eHUUM modeled the HIVE on a wild beehive: stainless steel arcs hold the stone in an open round form, so the stone is what you see.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-block\"\u003e\n        \u003ch3\u003eAn open cage of stone\u003c\/h3\u003e\n\u003cp\u003eIt holds 528 lb (240 kg) inside stainless steel arcs. HUUM describes the large stone load as the source of the HIVE's gentle, long lasting steam.\u003c\/p\u003e\n\u003ch3\u003eThe air tunnel\u003c\/h3\u003e\n\u003cp\u003eEvery HIVE ships with an air tunnel inside the stone bed. HUUM's manual says it moves air through the heater to speed up heating, prevents the elements from overheating and gives them structural support.\u003c\/p\u003e\n\u003ch3\u003eFour legs, or sunk in\u003c\/h3\u003e\n\u003cp\u003eThe heater is 22.06 in diameter x 29.53 in H and stands on 4 adjustable legs. It can also be partly sunk into the bench or the floor with the \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eHIVE embedding flange\u003c\/a\u003e, as long as at least 13.8 inches (350 mm) of it stays above the surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hhive18-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-18-studio.jpg?v=1790069043\u0026amp;width=1200\" alt=\"HUUM HIVE floor standing electric sauna heater filled with stones\" width=\"1144\" height=\"1144\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM HIVE 18.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003ch3\u003eWhat the HIVE 18 asks of the building\u003c\/h3\u003e\n    \u003cp\u003eIt draws 75 amps at 240 volts across two circuits, each on a 50 amp breaker with 6 AWG cable in HUUM's manual. On a 208 volt supply it makes 13.5 kW and the rated room falls to 477 to 742 cubic feet, so a commercial building on 208 volts sizes from that row.\u003c\/p\u003e\n\u003cp\u003eIt asks for 7.06 inches to the wall beside it and 36.22 inches wall to wall across it, holds 528 pounds of stone, and needs the UKU extension box.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive18-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working HIVE 18 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hhive18-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eThe control unit goes outside the hot room. HUUM's matched control is the UKU, and it is the controller the heater was certified with: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThe UKU extension box\u003c\/th\u003e\n\u003ctd\u003eRequired at this output: the UKU main module carries heaters up to 11 kW. \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eHUUM UKU extension box\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e16 boxes of stone\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. You can build one or use the \u003ca href=\"\/products\/huum-hive-safety-rail\"\u003eHUUM safety rail\u003c\/a\u003e made for this heater. HUUM adds that when the guard is a flammable material such as wood, the heater's minimum safety distances still have to be kept to it. Check what your local code has adopted.\u003c\/p\u003e\n    \u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-hive-reflector\"\u003ereflector panel\u003c\/a\u003e is the part HUUM makes for a tight space: HUUM states it halves the heater's safety distance to the walls, and the heater manual's own distances still decide the layout until your inspector agrees. The \u003ca href=\"\/products\/huum-hive-embedding-flange\"\u003eembedding flange\u003c\/a\u003e is only needed if the heater is sunk into a bench or the floor.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go: our \u003ca href=\"\/products\/huum-hive-18-sauna-heater-package\"\u003eHUUM HIVE 18 sauna heater package\u003c\/a\u003e is exactly that, priced at the parts added together. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM HIVE 18 needs\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired on two supply circuits by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cp\u003eThis heater takes \u003cstrong\u003etwo supply circuits\u003c\/strong\u003e, each on its own breaker and cable, which is why the figures below come in pairs.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-ladder hhive18-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hhive18-on\"\u003e\n\u003ctd class=\"hhive18-kw\"\u003e240 V\u003cspan class=\"hhive18-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e18 kW, 75 A, 50 + 50 A (two circuits) breaker, 6 + 6 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hhive18-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e13.5 kW, 64.9 A, 40 + 40 A (two circuits) breaker, 8 + 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e477 to 742 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eThe supply cable has to meet UL 62 in the United States or CSA 49 in Canada. Crimping the cable ends is mandatory. Cable with non heat resistant PVC insulation is not allowed, and the junction box must be waterproof and within 20 inches (50 cm) of the floor. HUUM's HIVE manual says only certified control panels designed for the control of an electric heater may be used.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE 18 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. SGS records that listing at 240 V. HUUM's current US manual also publishes 208 V ratings for this heater, so on a 208 V supply confirm acceptance with your local inspector before you wire it. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive18-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM HIVE 18 can go\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eClearances are set per model and generally grow with output. These are this model's figures from HUUM's manual.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, HIVE 18\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the wall beside the heater\u003c\/th\u003e\n\u003ctd\u003e7.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e36.22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e47.25 in (1200 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e53.0 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eScrew the 4 legs in and adjust them so all four carry the heater equally and it stands level, as HUUM's manual asks.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive18-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-18-dark_sauna.jpg?width=1200\" alt=\"HUUM HIVE heater in a sauna with a dark wall\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the HIVE 18 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 18 kW into steam, and the heater may not be switched on without it.\u003c\/p\u003e\n    \u003cp\u003eThis heater holds \u003cstrong\u003e528 lb (240 kg)\u003c\/strong\u003e, which is \u003cstrong\u003e16 boxes\u003c\/strong\u003e of HUUM stone. HUUM asks for stone 2 to 4 inches (5 to 10 cm) across and supplies olivine diabase in 33 pound boxes. The box count is from the manual's table of 33 pound boxes; the manual's text gives about 551 pounds (250 kg), so order the full 16. HUUM advises against decorative stone, which does not store enough heat and breaks easily.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone under running water first. Lay it one piece at a time rather than pouring it in, bigger stones at the bottom and the sides, smaller ones fixing them in place. Lay stone between the elements too, which supports them and keeps them apart, without pushing hard enough to bend them. Lay the stones as tightly as possible while leaving some room for air to circulate, and lay the outer face tightly so no element shows through. HUUM recommends round stone, which lets the steam water run down to the lower layers.\u003c\/p\u003e\n\u003cdiv class=\"hhive18-warn\"\u003e\u003cp\u003e\u003cb\u003eA sparsely filled stone bed is a fire hazard.\u003c\/b\u003e HUUM's manual warns that if the elements are not properly surrounded by stone, its safety distances do not apply. Damage caused by unsuitable stone is not covered by HUUM's warranty.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eLooking after it\u003c\/h3\u003e\n\u003cp\u003eHUUM asks for the stone to be checked once a year, with broken pieces taken out and replaced. Stone crumbles as it cycles, and the pieces are what block the air holes.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hhive18-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-cage_2c728ae3-2655-4bf6-8e70-0708a71d111e.jpg?width=1200\" alt=\"HUUM HIVE heater cage without stones, heating elements visible\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe stone bed, filled as the manual asks.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive18-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the HIVE 18 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e18 kW x 0.183 = about 3.29 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 9.88 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 30 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the HIVE 18 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hhive18-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hhive18-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eAir tunnel\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control and the UKU extension box, the stone, and the electrical work. The control and 16 boxes of stone are required to operate the heater. The rail, reflector and embedding flange are optional.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive18-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 18 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hhive18-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-spec\"\u003e\n\u003ccaption\u003eFrom the HIVE user manual USA v13 (July 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e18 kW at 240 V, 13.5 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e636 to 989 adjusted cu. ft. at 240 V, 477 to 742 cu. ft. at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e77 in (1950 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e75 A at 240 V, 64.9 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 + 50 A (two circuits) at 240 V, 40 + 40 A (two circuits) at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e6 + 6 AWG at 240 V, 8 + 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg), 16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody size\u003c\/th\u003e\n\u003ctd\u003e22.06 in diameter x 29.53 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the wall beside it\u003c\/th\u003e\n\u003ctd\u003e7.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e36.22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control required, sold separately; UKU extension box required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hhive18-tw\"\u003e\u003ctable class=\"hhive18-spec\"\u003e\n\u003ccaption\u003ePart number, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH1003032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e53.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003eSingle phase, 60 Hz, two circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/20\/SUW\/00067X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 18 against the rest of the HIVE range\u003c\/h2\u003e\n    \u003cp class=\"hhive18-lead\"\u003eEvery figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hhive18-tw hhive18-tw--scroll\"\u003e\u003ctable class=\"hhive18-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003e\u003cspan class=\"hhive18-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-m\"\u003eHIVE 12\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-here\"\u003e12 kW, 424 to 636 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-hive-15-electric-sauna-heater\"\u003e\u003cspan class=\"hhive18-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-m\"\u003eHIVE 15\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-here\"\u003e15 kW, 530 to 813 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hhive18-me\"\u003e\n\u003cspan class=\"hhive18-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-m\"\u003eHIVE 18\u003c\/span\u003e\u003cspan class=\"hhive18-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e636 to 989 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e62.5 A\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 + 30 A (two circuits)\u003c\/td\u003e\n\u003ctd\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e50 + 50 A (two circuits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 + 10 AWG\u003c\/td\u003e\n\u003ctd\u003e6 + 6 AWG\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e6 + 6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTo the wall beside it\u003c\/td\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e7.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd class=\"hhive18-me\"\u003e16 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a HIVE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eFor a room under 424 cubic feet a full size HIVE is more heater than you need: the HIVE Mini covers 177 to 566 cubic feet on a single circuit, without the extension box.\u003c\/p\u003e\n    \u003cp\u003eCompare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hhive18-c\"\u003e\n    \u003cp class=\"hhive18-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM HIVE 18 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hhive18-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM HIVE 18 heat?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eHUUM rates it for 636 to 989 cubic feet on 240 volts, or 477 to 742 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 18 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eNo. Every HUUM electric heater needs a separate certified control, bought separately, and the control unit goes outside the hot room. HUUM's matched control is the UKU, the controller this heater was certified with, in Local or Wi-Fi form. At this output the UKU also needs the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM HIVE 18 need?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003e16 boxes. The heater holds 528 lb (240 kg) and HUUM asks for stone 2 to 4 inches (5 to 10 cm) across. HUUM's own stone is olivine diabase in 33 pound boxes. The heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM HIVE 18 need?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eOn 240 volts it draws 75 A and HUUM specifies two circuits, each on a 50 A breaker with 6 AWG cable. On 208 volts it is 64.9 A, two 40 A breakers with 8 AWG cable on each. The cable must meet UL 62 in the United States or CSA 49 in Canada, and your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM HIVE 18 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/20\/SUW\/00067X covers this heater for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM HIVE 18 myself?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 18 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the HUUM HIVE 18 be set into the bench?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eYes. HUUM's manual allows the HIVE to be partly sunk into the sauna bench or floor, as long as at least 13.8 inches (350 mm) of it stays above the surface, with the HIVE embedding flange covering the cut edge.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM HIVE 18 need a UKU extension box?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eYes. The UKU's main module carries heaters up to 11 kW, so at this output the UKU extension box is required, mounted outside the steam room near the main module.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM HIVE 18?\u003c\/summary\u003e\u003cdiv class=\"hhive18-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it. Because elements are excluded, we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003ereplacement parts\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhive18-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhive18-c\"\u003e\n\u003cp class=\"hhive18-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE 18 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hhive18-who\"\u003e\n\u003cimg class=\"hhive18-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhive18-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhive18-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514418946415,"sku":"H1003032","price":3356.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-18-studio.jpg?v=1790069043"},{"product_id":"huum-sauna-stones-3-5-cm-with-heater","title":"HUUM Sauna Stones, 1.2 to 2 in (3 to 5 cm), 33 lb Box, With Your Heater","description":"\u003cstyle\u003e.hst12w{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hst12w 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.hst12w-stat3\u003ediv:last-child{border-bottom:0}.hst12w .hst12w-split{grid-template-columns:1fr;gap:24px}.hst12w .hst12w-buy{grid-template-columns:1fr}.hst12w .hst12w-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hst12w .hst12w-toc\u003esummary{display:none}.hst12w .hst12w-toc ol{display:grid !important}}@media screen and (max-width:560px){.hst12w .hst12w-ladder thead{position:absolute;left:-9999px}.hst12w .hst12w-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hst12w .hst12w-ladder tr.on{background:var(--hl)}.hst12w .hst12w-ladder td{display:block;border:0;padding:0}.hst12w .hst12w-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hst12w .hst12w-hl td,.hst12w .hst12w-hl th,.hst12w .hst12w-ladder tr.on td,.hst12w table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hst12w table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hst12w table th,.rte .hst12w table td{padding:11px var(--gut)}.hst12w .hst12w-ladder th:last-child,.hst12w .hst12w-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hst12w .hst12w-buy{align-items:start}.hst12w .hst12w-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hst12w table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hst12w table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hst12w .hst12w-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hst12w table.hst12w-spec th,.hst12w table.hst12w-spec td{display:block;width:auto}.hst12w table.hst12w-spec th{border-bottom:0;padding-bottom:0}}.hst12w .hst12w-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hst12w .hst12w-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hst12w .hst12w-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hst12w .hst12w-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hst12w .hst12w-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hst12w .hst12w-close p.hst12w-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hst12w .hst12w-stat3 a{color:var(--bright)}.hst12w .hst12w-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hst12w .hst12w-cmp thead a .hst12w-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hst12w .hst12w-ladder.hst12w-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hst12w .hst12w-ladder.hst12w-out td:last-child::before{content:\"Output:\\00a0\"}}.hst12w .hst12w-tw + p,.hst12w .hst12w-tw + h3,.hst12w .hst12w-warn + p,.hst12w .hst12w-warn + h3,.hst12w .hst12w-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hst12w\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hst12w-c\"\u003e\n    \u003cdetails class=\"hst12w-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hst12w-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#boxes\"\u003eHow many boxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laying\"\u003eLaying it\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hst12w-eyebrow\"\u003eFor HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eHUUM olivine diabase sauna stones, 1.2 to 2 in (3 to 5 cm), in 33 pound boxes\u003c\/h2\u003e\n    \u003cp class=\"hst12w-lead\"\u003eThis is the stone size HUUM specifies for the CLIFF Mini, CLIFF, STEEL Mini and STEEL. Every HUUM heater needs its stone bought separately, and the heater, not the room, sets how many boxes it takes.\u003c\/p\u003e\n\u003cp\u003eThis is the box added from a HUUM heater’s own page, and it ships free with that heater.\u003c\/p\u003e\n    \u003cdiv class=\"hst12w-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12w-lbl\"\u003eStone size\u003c\/p\u003e\n\u003cp class=\"hst12w-big\"\u003e1.2 to 2 in\u003c\/p\u003e\n\u003cp\u003e3 to 5 cm across, rounded olivine diabase, the size HUUM gives for these heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12w-lbl\"\u003ePer box\u003c\/p\u003e\n\u003cp class=\"hst12w-big\"\u003e33 lb\u003c\/p\u003e\n\u003cp\u003eHUUM packs its stone in 15 kg boxes. Order whole boxes to the number your heater takes.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12w-lbl\"\u003eWrong size?\u003c\/p\u003e\n\u003cp class=\"hst12w-big\"\u003e2 to 4 in\u003c\/p\u003e\n\u003cp\u003eThe DROP, HIVE, HIVE Mini and CORE take the other grade: \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm-with-heater\"\u003eHUUM stones, 2 to 4 in (5 to 10 cm)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12w-tinted\" id=\"boxes\"\u003e\n  \u003cdiv class=\"hst12w-c\"\u003e\n    \u003cp class=\"hst12w-eyebrow\"\u003eQuantity\u003c\/p\u003e\n    \u003ch2\u003eHow many boxes of HUUM 3 to 5 cm stone your heater takes\u003c\/h2\u003e\n    \u003cp class=\"hst12w-lead\"\u003eThe quantity comes from HUUM's own figures for each heater. Order the full amount: a heater may not be switched on until it is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hst12w-tw\"\u003e\u003ctable class=\"hst12w-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's current US manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eHolds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBoxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e165 lb (75 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e330 lb (150 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hst12w-warn\"\u003e\u003cp\u003e\u003cb\u003eToo little stone is a fire hazard, not a saving.\u003c\/b\u003e HUUM's manuals warn that a sparsely filled stone container causes a fire hazard, and require that no element shows through the stone.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"laying\"\u003e\n  \u003cdiv class=\"hst12w-c\"\u003e\n    \u003cp class=\"hst12w-eyebrow\"\u003eLaying it\u003c\/p\u003e\n    \u003ch2\u003eHow to lay HUUM sauna stones\u003c\/h2\u003e\n    \u003cp class=\"hst12w-lead\"\u003eThe way the stone goes in matters as much as the amount. It is what carries the heat into the steam, and packed badly it starves the elements of air.\u003c\/p\u003e\n    \u003cul class=\"hst12w-chk\"\u003e\n\u003cli\u003e\n\u003cb\u003eWash it first\u003c\/b\u003e\u003cspan\u003eRinse the dust off under running water before it goes into the heater.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoose inside\u003c\/b\u003e\u003cspan\u003eStack the stone sparsely between the elements. HUUM's CLIFF and STEEL manuals warn that stone packed too close makes the elements overheat and slows the heating.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight outside\u003c\/b\u003e\u003cspan\u003eStack the stone on the outer face close together, so no element is visible.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGet help if unsure\u003c\/b\u003e\u003cspan\u003eHUUM's CLIFF and STEEL manuals recommend having a specialist lay the stone.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003eStone crumbles as it heats and cools, and the dust eventually blocks the airflow, so check it regularly and replace cracked pieces. HUUM's CLIFF and STEEL manuals allow ceramic stones only at your own risk, and HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\n    \u003cp\u003eChoosing a heater first? Every model is in our \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e, and the \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hst12w-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-in-cliff-heater.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones loaded in the basket of a HUUM CLIFF heater\" width=\"1668\" height=\"2000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLaid in the heater, loosely enough for air to move between the stones.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12w-tinted\" id=\"faq\"\u003e\u003cdiv class=\"hst12w-c\"\u003e\n\u003cp class=\"hst12w-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM 3 to 5 cm sauna stone questions\u003c\/h2\u003e\n\u003cdiv class=\"hst12w-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhich HUUM heaters take 3 to 5 cm stones?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eThe CLIFF Mini, CLIFF, STEEL Mini and STEEL. The DROP, HIVE, HIVE Mini and CORE take 2 to 4 in (5 to 10 cm) stone instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many boxes of HUUM stone do I need?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eIt depends on the heater: CLIFF Mini 4 takes 4 boxes; CLIFF 6, 9, 11 takes 5 boxes; STEEL Mini 4 takes 4 boxes; STEEL 6, 9, 11 takes 10 boxes. Order the full number, because the heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat kind of stone is it?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eRounded olivine diabase, supplied by HUUM for its heaters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I use stones from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eHUUM's CLIFF and STEEL manuals call for stone 1.2 to 1.9 in (3 to 5 cm) across and allow ceramic stones only at your own risk. HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow often should sauna stones be replaced?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eCheck it regularly and replace cracked pieces, because crumbling stone blocks the airflow the elements need. HUUM's DROP manual goes further and replaces the whole load after 400 hours of use, a sensible guide for any heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eAre sauna stones returnable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12w-fb\"\u003e\u003cp\u003eNot once a box is opened, since stone is sold by weight. Unopened boxes follow the return terms in the returns panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\n\u003cdiv class=\"hst12w-close\" id=\"order\"\u003e\n\u003cdiv class=\"hst12w-c\"\u003e\n\u003cp class=\"hst12w-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure which grade your heater takes?\u003c\/h2\u003e\n\u003cp\u003eTell us the heater and we will say which stone grade it is built for and how many boxes it holds. Grade matters: the wrong size packs badly, chokes the airflow and shortens the life of the elements. Every heater we carry lists its own figure on its page in the \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hst12w-who\"\u003e\n\u003cimg class=\"hst12w-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hst12w-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hst12w-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514476028271,"sku":"H3099011","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_1f55fd3b-671e-4814-ac42-385ecbd7cedd.jpg?v=1790069215"},{"product_id":"huum-sauna-stones-5-10-cm-with-heater","title":"HUUM Sauna Stones, 2 to 4 in (5 to 10 cm), 33 lb Box, With Your Heater","description":"\u003cstyle\u003e.hst24w{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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td,.hst24w .hst24w-hl th,.hst24w .hst24w-ladder tr.on td,.hst24w table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hst24w table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hst24w table th,.rte .hst24w table td{padding:11px var(--gut)}.hst24w .hst24w-ladder th:last-child,.hst24w .hst24w-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hst24w .hst24w-buy{align-items:start}.hst24w .hst24w-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hst24w table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hst24w table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hst24w .hst24w-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hst24w table.hst24w-spec th,.hst24w table.hst24w-spec td{display:block;width:auto}.hst24w table.hst24w-spec th{border-bottom:0;padding-bottom:0}}.hst24w .hst24w-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hst24w .hst24w-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hst24w .hst24w-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hst24w .hst24w-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hst24w .hst24w-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hst24w .hst24w-close p.hst24w-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hst24w .hst24w-stat3 a{color:var(--bright)}.hst24w .hst24w-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hst24w .hst24w-cmp thead a .hst24w-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hst24w .hst24w-ladder.hst24w-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hst24w .hst24w-ladder.hst24w-out td:last-child::before{content:\"Output:\\00a0\"}}.hst24w .hst24w-tw + p,.hst24w .hst24w-tw + h3,.hst24w .hst24w-warn + p,.hst24w .hst24w-warn + h3,.hst24w .hst24w-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hst24w\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hst24w-c\"\u003e\n    \u003cdetails class=\"hst24w-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hst24w-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#boxes\"\u003eHow many boxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laying\"\u003eLaying it\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hst24w-eyebrow\"\u003eFor HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eHUUM olivine diabase sauna stones, 2 to 4 in (5 to 10 cm), in 33 pound boxes\u003c\/h2\u003e\n    \u003cp class=\"hst24w-lead\"\u003eThis is the stone size HUUM specifies for the DROP, HIVE Mini, HIVE and CORE. Every HUUM heater needs its stone bought separately, and the heater, not the room, sets how many boxes it takes.\u003c\/p\u003e\n\u003cp\u003eThis is the box added from a HUUM heater’s own page, and it ships free with that heater.\u003c\/p\u003e\n    \u003cdiv class=\"hst24w-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24w-lbl\"\u003eStone size\u003c\/p\u003e\n\u003cp class=\"hst24w-big\"\u003e2 to 4 in\u003c\/p\u003e\n\u003cp\u003e5 to 10 cm across, rounded olivine diabase, the size HUUM gives for these heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24w-lbl\"\u003ePer box\u003c\/p\u003e\n\u003cp class=\"hst24w-big\"\u003e33 lb\u003c\/p\u003e\n\u003cp\u003eHUUM packs its stone in 15 kg boxes. Order whole boxes to the number your heater takes.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst24w-lbl\"\u003eWrong size?\u003c\/p\u003e\n\u003cp class=\"hst24w-big\"\u003e1.2 to 2 in\u003c\/p\u003e\n\u003cp\u003eThe CLIFF, CLIFF Mini, STEEL and STEEL Mini take the other grade: \u003ca href=\"\/products\/huum-sauna-stones-3-5-cm-with-heater\"\u003eHUUM stones, 1.2 to 2 in (3 to 5 cm)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst24w-tinted\" id=\"boxes\"\u003e\n  \u003cdiv class=\"hst24w-c\"\u003e\n    \u003cp class=\"hst24w-eyebrow\"\u003eQuantity\u003c\/p\u003e\n    \u003ch2\u003eHow many boxes of HUUM 5 to 10 cm stone your heater takes\u003c\/h2\u003e\n    \u003cp class=\"hst24w-lead\"\u003eThe quantity comes from HUUM's own figures for each heater. Order the full amount: a heater may not be switched on until it is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hst24w-tw\"\u003e\u003ctable class=\"hst24w-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's current US manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eHolds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBoxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e121.3 lb (55 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e331 lb (150 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e528 lb (240 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e88.2 lb (40 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hst24w-warn\"\u003e\u003cp\u003e\u003cb\u003eToo little stone is a fire hazard, not a saving.\u003c\/b\u003e HUUM's manuals warn that a sparsely filled stone container causes a fire hazard, and require that no element shows through the stone.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"laying\"\u003e\n  \u003cdiv class=\"hst24w-c\"\u003e\n    \u003cp class=\"hst24w-eyebrow\"\u003eLaying it\u003c\/p\u003e\n    \u003ch2\u003eHow to lay HUUM sauna stones\u003c\/h2\u003e\n    \u003cp class=\"hst24w-lead\"\u003eThe way the stone goes in matters as much as the amount. It is what carries the heat into the steam, and packed badly it starves the elements of air.\u003c\/p\u003e\n    \u003cul class=\"hst24w-chk\"\u003e\n\u003cli\u003e\n\u003cb\u003eWash it first\u003c\/b\u003e\u003cspan\u003eRinse the dust off under running water before it goes into the heater.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLay it, do not pour it\u003c\/b\u003e\u003cspan\u003ePiece by piece, biggest stones at the bottom and the sides, smaller ones wedging them in place, as HUUM's DROP and HIVE manuals describe.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCover the elements\u003c\/b\u003e\u003cspan\u003ePack the outer face tightly enough that no element shows through the stone.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeave room for air\u003c\/b\u003e\u003cspan\u003eTight outside, with air paths inside. Stone jammed too hard shortens the life of the elements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003eStone crumbles as it heats and cools, and the dust eventually blocks the airflow. HUUM's HIVE manual asks for a yearly check that removes broken pieces, and the DROP manual replaces the whole load after 400 hours of use. HUUM advises against decorative stone, which does not store enough heat and breaks easily, and its warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\n    \u003cp\u003eChoosing a heater first? Every model is in our \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e, and the \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hst24w-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-in-drop-heater_d4e2a4e2-210e-4145-a1ba-e23c6eb64898.jpg?width=1200\" alt=\"HUUM sauna stones in the open cage of a HUUM heater\" width=\"1120\" height=\"1120\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLaid in the heater, loosely enough for air to move between the stones.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst24w-tinted\" id=\"faq\"\u003e\u003cdiv class=\"hst24w-c\"\u003e\n\u003cp class=\"hst24w-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM 5 to 10 cm sauna stone questions\u003c\/h2\u003e\n\u003cdiv class=\"hst24w-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhich HUUM heaters take 5 to 10 cm stones?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eThe DROP, HIVE Mini, HIVE and CORE. The CLIFF, CLIFF Mini, STEEL and STEEL Mini take 1.2 to 2 in (3 to 5 cm) stone instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many boxes of HUUM stone do I need?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eIt depends on the heater: DROP 4, 6, 7, 9 takes 4 boxes; HIVE Mini 6, 9, 11 takes 10 boxes; HIVE 12, 15, 18 takes 16 boxes; CORE 6, 9, 11 takes 3 boxes. Order the full number, because the heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat kind of stone is it?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eRounded olivine diabase, supplied by HUUM for its heaters. HUUM's HIVE manual recommends round stones because they let the water run down to the lower layers.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I use stones from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eNatural stone sold for sauna heaters, in the size HUUM specifies for your model, is suitable according to HUUM's DROP and HIVE manuals. Decorative stone is not, and HUUM's warranty excludes damage caused by unsuitable stone. HUUM's CORE manual allows ceramic stones only at your own risk.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow often should sauna stones be replaced?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eHUUM's HIVE manual asks for a yearly check that removes broken pieces, and the DROP manual replaces the whole load after 400 hours of use. Crumbling stone blocks the airflow the elements need.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eAre sauna stones returnable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst24w-fb\"\u003e\u003cp\u003eNot once a box is opened, since stone is sold by weight. Unopened boxes follow the return terms in the returns panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\n\u003cdiv class=\"hst24w-close\" id=\"order\"\u003e\n\u003cdiv class=\"hst24w-c\"\u003e\n\u003cp class=\"hst24w-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure which grade your heater takes?\u003c\/h2\u003e\n\u003cp\u003eTell us the heater and we will say which stone grade it is built for and how many boxes it holds. Grade matters: the wrong size packs badly, chokes the airflow and shortens the life of the elements. Every heater we carry lists its own figure on its page in the \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hst24w-who\"\u003e\n\u003cimg class=\"hst24w-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hst24w-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hst24w-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514476487023,"sku":"H3099021","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677.jpg?v=1790069227"},{"product_id":"huum-core-6-electric-sauna-heater","title":"HUUM CORE 6 6.5kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcore6{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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section:first-of-type{padding-top:20px}.hcore6 h2{font-size:23px}.hcore6 p.hcore6-lead{font-size:17px}.hcore6 .hcore6-stat3{grid-template-columns:1fr}.hcore6 .hcore6-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hcore6 .hcore6-stat3\u003ediv:last-child{border-bottom:0}.hcore6 .hcore6-split{grid-template-columns:1fr;gap:24px}.hcore6 .hcore6-buy{grid-template-columns:1fr}.hcore6 .hcore6-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hcore6 .hcore6-toc\u003esummary{display:none}.hcore6 .hcore6-toc ol{display:grid !important}}@media screen and (max-width:560px){.hcore6 .hcore6-ladder thead{position:absolute;left:-9999px}.hcore6 .hcore6-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hcore6 .hcore6-ladder tr.hcore6-on{background:var(--hl)}.hcore6 .hcore6-ladder td{display:block;border:0;padding:0}.hcore6 .hcore6-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hcore6 .hcore6-hl td,.hcore6 .hcore6-hl th,.hcore6 .hcore6-ladder tr.hcore6-on td,.hcore6 table.hcore6-cmp td.hcore6-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hcore6 table.hcore6-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hcore6 table th,.rte .hcore6 table td{padding:11px var(--gut)}.hcore6 .hcore6-ladder th:last-child,.hcore6 .hcore6-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hcore6 .hcore6-buy{align-items:start}.hcore6 .hcore6-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hcore6 table.hcore6-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hcore6 table.hcore6-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hcore6 .hcore6-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hcore6 table.hcore6-spec th,.hcore6 table.hcore6-spec td{display:block;width:auto}.hcore6 table.hcore6-spec th{border-bottom:0;padding-bottom:0}}.hcore6 .hcore6-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hcore6 .hcore6-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hcore6 .hcore6-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hcore6 .hcore6-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hcore6 .hcore6-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcore6 .hcore6-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcore6 .hcore6-close p.hcore6-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcore6 .hcore6-stat3 a{color:var(--bright)}.hcore6 .hcore6-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcore6 .hcore6-cmp thead a .hcore6-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcore6 .hcore6-ladder.hcore6-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcore6 .hcore6-ladder.hcore6-out td:last-child::before{content:\"Output:\\00a0\"}}.hcore6 .hcore6-tw + p,.hcore6 .hcore6-tw + h3,.hcore6 .hcore6-warn + p,.hcore6 .hcore6-warn + h3,.hcore6 .hcore6-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcore6\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cdetails class=\"hcore6-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcore6-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eThe smallest CORE\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CORE 6 is a 6.5 kW floor standing electric sauna heater for rooms of 177 to 318 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003e6.5 kilowatts for rooms of 177 to 318 cubic feet, in a square floor standing heater you can leave black, clad in HUUM's wood panels, or finish yourself.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore6-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcore6-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore6-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcore6-big\"\u003e25 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 30 A breaker and 10 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore6-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcore6-big\"\u003eControl and 3 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and the heater holds about 88.2 lb of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore6-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CORE 6 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CORE 6 for \u003cstrong\u003e177 to 318 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty is not valid if the heater output does not match the calculated room volume.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-ladder hcore6-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr class=\"hcore6-on\"\u003e\n\u003ctd class=\"hcore6-kw\"\u003eCORE 6 \u003cspan class=\"hcore6-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore6-kw\"\u003eCORE 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore6-kw\"\u003eCORE 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CORE 6\u003c\/h3\u003e\n    \u003cp\u003eTake a room 7 feet by 6 feet with a 7 foot ceiling: 42 square feet of floor and 294 cubic feet, inside this heater's 177 to 318. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 337 cubic feet, which is past the CORE 6 and into CORE 9 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a CORE is 80 inches (2030 mm).\u003c\/b\u003e HUUM recommends 80 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eFive exteriors, two trims\u003c\/p\u003e\n    \u003ch2\u003eChoosing the exterior of the CORE 6\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eThe CORE is a square heater with its stone in an open top. HUUM makes it in a black metal case, or without a case to clad in ceramic tile, stone, glass or wood, as HUUM puts it, and HUUM lists it as a European Product Design Award winner.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-block\"\u003e\n        \u003ch3\u003eBlack\u003c\/h3\u003e\n        \u003cp\u003eHUUM's finished version, in what it calls a sleek black metal casing. It comes with a black top trim only.\u003c\/p\u003e\n        \u003ch3\u003eUnfinished, to finish yourself\u003c\/h3\u003e\n        \u003cp\u003eThe caseless CORE, which HUUM describes as allowing easy customization. It ships with 4 unfinished metal shields, 4 cover strips and their screws, and the manual's two appendices show slat finishes and tile. Choose a black or stainless steel top trim.\u003c\/p\u003e\n        \u003ch3\u003eAlder, aspen or thermo-aspen\u003c\/h3\u003e\n        \u003cp\u003eThe unfinished CORE with HUUM's own wood panels. The 4 panels and their fastening screws come in the box and fit to the metal shields. Each comes with a black or stainless steel top trim.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcore6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black.jpg?v=1790070143\u0026amp;width=1200\" alt=\"HUUM CORE floor standing electric sauna heater, Black exterior, with its stones laid\" width=\"1084\" height=\"1084\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CORE in its Black exterior.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003e\u003cb\u003eFinishing it yourself has rules.\u003c\/b\u003e HUUM's manual limits one side panel, finish included, to 44.1 lb (20 kg), caps the fixing screw diameter at 4.2 mm, and asks for at least a 1 inch (25 mm) air gap under the heater. It also advises connecting the wiring and checking the heater works before you fit the finish, because a finished CORE is heavy and hard to turn. Use a material suitable for the sauna, and ask a specialist about fasteners. The horizontal finish and tile route in the manual's Appendix 2 fixes to mounting brackets that HUUM sells as an accessory.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n    \u003cp\u003eHUUM says the CORE may be embedded into the sauna bench in its full length, and describes its safety distances as small enough for various placement options. The manual's 2 in (50 mm) clearance to flammable material still applies, so keep that gap to the bench on every side.\u003c\/p\u003e\n    \u003ch3\u003eWhat the CORE 6 is for\u003c\/h3\u003e\n    \u003cp\u003eIt is the smallest CORE and runs on a 30 amp breaker with 10 AWG cable in HUUM's manual. All three sizes share one body, one set of clearances and one stone load, so choosing between them is purely the room volume and the circuit.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply it makes 4.8 kW and is rated for 142 to 248 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore6-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CORE 6 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcore6-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page, in the exterior and trim you choose.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eHUUM's manual says any certified control panel may be used, and that it must have a timer function. HUUM's matched control is the UKU: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e3 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eThe heater holds about 88.2 lb (40 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes, so 3 boxes covers it with a little to spare.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM's manual recommends a guard rail of a material with low heat capacity and poor thermal conductivity, and says the heater's minimum safety distances still have to be kept to a flammable guard. Check what your local code has adopted.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CORE 6 needs\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-ladder hcore6-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcore6-on\"\u003e\n\u003ctd class=\"hcore6-kw\"\u003e240 V\u003cspan class=\"hcore6-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6.5 kW, 25 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcore6-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e4.8 kW, 21.63 A, 30 A breaker, 10 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eA means of disconnecting all poles, a circuit breaker, goes on the power circuit before the sauna control. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and a junction box in the sauna room must be waterproof and no higher than 19 11\/16 inches (50 cm) from the floor. The power cable enters through the bottom cover.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/25\/SUW\/00121X covers the CORE 6 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore6-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CORE 6 can go\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eAll three CORE sizes share one set of clearances in HUUM's manual, and they are small.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CORE 6\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the walls around the heater\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater size, HUUM's table\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e41.9 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the CORE anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. On the unfinished and wood versions, the final outside size depends on the exterior fitted.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-in-sauna.jpg?width=1200\" alt=\"HUUM CORE Black in a barrel sauna\" width=\"896\" height=\"896\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CORE 6 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 6.5 kW into steam, and the heater may be used only when it has been correctly filled.\u003c\/p\u003e\n    \u003cp\u003eHUUM's manual says the heater holds about \u003cstrong\u003e88.2 lb (40 kg)\u003c\/strong\u003e of stone 2 to 4 inches (5 to 10 cm) across. That is \u003cstrong\u003e3 boxes\u003c\/strong\u003e of HUUM's 33 pound olivine diabase, with a little left over.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer surface goes close together, and no element may be left visible. HUUM strongly recommends having a specialist lay the stone, and allows ceramic stones only at your own risk.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual warns that a too sparsely filled stone container causes a fire hazard,\u003c\/b\u003e and that defects caused by unsuitable stone are not covered by the warranty.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore6-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-top.jpg?width=1200\" alt=\"Stones in the top of a HUUM CORE Black\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore6-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CORE 6 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e6.5 kW x 0.183 = about 1.19 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 3.57 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 11 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CORE 6 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcore6-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcore6-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003cli\u003eUnfinished and wood versions: 4 unfinished metal shields, 4 cover strips and their screws\u003c\/li\u003e\n\u003cli\u003eWood versions: 4 wood panels and their fastening screws\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 3 boxes of stone are required to operate the heater. On the unfinished version, the exterior is yours to supply.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore6-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 6 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcore6-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-spec\"\u003e\n\u003ccaption\u003eFrom the CORE user manual US v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e6.5 kW at 240 V, 4.8 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 cu. ft. at 208 V (after the cold-wall adjustment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e80 in (2030 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e25 A at 240 V, 21.63 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e30 A at 240 V, 30 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e10 AWG at 240 V, 10 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 88.2 lb (40 kg), 3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the walls\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control with a timer function, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcore6-tw\"\u003e\u003ctable class=\"hcore6-spec\"\u003e\n\u003ccaption\u003eOptions, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eExteriors\u003c\/th\u003e\n\u003ctd\u003eBlack, unfinished, alder, aspen, thermo-aspen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTop trim\u003c\/th\u003e\n\u003ctd\u003eBlack or stainless steel (Black exterior: black only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e41.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V or 208 V, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/25\/SUW\/00121X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 6 against the rest of the CORE range\u003c\/h2\u003e\n    \u003cp class=\"hcore6-lead\"\u003eAll three share one body, one set of clearances, one stone load and the same five exteriors. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcore6-tw hcore6-tw--scroll\"\u003e\u003ctable class=\"hcore6-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"hcore6-me\"\u003e\n\u003cspan class=\"hcore6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-m\"\u003eCORE 6\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-9-electric-sauna-heater\"\u003e\u003cspan class=\"hcore6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-m\"\u003eCORE 9\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-11-electric-sauna-heater\"\u003e\u003cspan class=\"hcore6-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-m\"\u003eCORE 11\u003c\/span\u003e\u003cspan class=\"hcore6-cmp-here\"\u003e10.5 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e6.5 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd class=\"hcore6-me\"\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CORE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CORE tops out at 10.5 kW and 566 cubic feet. For a bigger room, the \u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eHUUM HIVE\u003c\/a\u003e goes to 18 kW. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcore6-c\"\u003e\n    \u003cp class=\"hcore6-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 6 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcore6-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CORE 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet on 240 volts, or 142 to 248 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich CORE exterior should I choose?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eBlack is HUUM's finished black metal case, with a black top trim. Unfinished is the caseless heater you clad yourself in wood slats, tile, stone or glass, following the manual's finishing appendices. Alder, aspen and thermo-aspen are the unfinished heater with HUUM's wood panels in the box. The unfinished and wood versions come with a black or stainless steel top trim.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 6 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eNo. It needs a separate certified control with a timer function, bought separately. HUUM's matched control is the UKU, in Local or Wi-Fi form, and at this output it runs from the UKU's main module without the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CORE 6 need?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003e3 boxes. HUUM's manual says the heater holds about 88.2 lb (40 kg) of stone 2 to 4 inches across, and HUUM's olivine diabase comes in 33 pound boxes. The heater may be used only when it has been correctly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CORE 6 need?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eOn 240 volts it draws 25 A and HUUM specifies a 30 A breaker with 10 AWG cable. On 208 volts it is 21.63 A, a 30 A breaker and 10 AWG. Your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CORE 6 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CORE 6 for the United States and Canada under certificate SGSNA\/25\/SUW\/00121X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is powered and controlled by a certified controller and the wiring to that controller follows the National Electrical Code. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the SGS directory record for it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I finish the unfinished CORE myself?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eYes, that is what it is for. HUUM's manual limits each side panel, finish included, to 44.1 lb (20 kg), caps the screw diameter at 4.2 mm, and asks for a 1 inch (25 mm) air gap under the heater. Use a material suitable for the sauna, and connect and test the wiring before you fit the finish.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CORE 6 myself?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM strongly recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 6 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CORE 6?\u003c\/summary\u003e\u003cdiv class=\"hcore6-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcore6-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcore6-c\"\u003e\n\u003cp class=\"hcore6-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CORE 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcore6-who\"\u003e\n\u003cimg class=\"hcore6-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcore6-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcore6-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Black","offer_id":53514525671791,"sku":"H1013072","price":2081.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, black trim","offer_id":53514525770095,"sku":"H1013012+H3013011","price":2820.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, stainless trim","offer_id":53514525802863,"sku":"H1013042+H3013011","price":2820.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, black trim","offer_id":53514525835631,"sku":"H1013012+H3013031","price":2820.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, stainless trim","offer_id":53514525868399,"sku":"H1013042+H3013031","price":2820.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, black trim","offer_id":53514525901167,"sku":"H1013012+H3013021","price":2942.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, stainless trim","offer_id":53514525933935,"sku":"H1013042+H3013021","price":2942.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, black trim","offer_id":53514525704559,"sku":"H1013012","price":1880.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, stainless trim","offer_id":53514525737327,"sku":"H1013042","price":1880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black.jpg?v=1790070143"},{"product_id":"huum-core-9-electric-sauna-heater","title":"HUUM CORE 9 9kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcore9{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hcore9 table.hcore9-spec th,.hcore9 table.hcore9-spec td{display:block;width:auto}.hcore9 table.hcore9-spec th{border-bottom:0;padding-bottom:0}}.hcore9 .hcore9-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hcore9 .hcore9-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hcore9 .hcore9-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hcore9 .hcore9-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hcore9 .hcore9-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcore9 .hcore9-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcore9 .hcore9-close p.hcore9-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcore9 .hcore9-stat3 a{color:var(--bright)}.hcore9 .hcore9-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcore9 .hcore9-cmp thead a .hcore9-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcore9 .hcore9-ladder.hcore9-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcore9 .hcore9-ladder.hcore9-out td:last-child::before{content:\"Output:\\00a0\"}}.hcore9 .hcore9-tw + p,.hcore9 .hcore9-tw + h3,.hcore9 .hcore9-warn + p,.hcore9 .hcore9-warn + h3,.hcore9 .hcore9-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcore9\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cdetails class=\"hcore9-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcore9-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eNine kilowatts\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CORE 9 is a 9 kW floor standing electric sauna heater for rooms of 283 to 460 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eThe CORE 9 heats rooms of 283 to 460 cubic feet from the same 15.16 inch square body as the CORE 6.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore9-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcore9-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore9-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcore9-big\"\u003e37.5 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore9-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcore9-big\"\u003eControl and 3 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and the heater holds about 88.2 lb of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore9-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CORE 9 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CORE 9 for \u003cstrong\u003e283 to 460 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty is not valid if the heater output does not match the calculated room volume.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-ladder hcore9-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore9-kw\"\u003eCORE 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hcore9-on\"\u003e\n\u003ctd class=\"hcore9-kw\"\u003eCORE 9 \u003cspan class=\"hcore9-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore9-kw\"\u003eCORE 11\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CORE 9\u003c\/h3\u003e\n    \u003cp\u003eTake a room 9 feet by 7 feet with a 7 foot ceiling: 63 square feet of floor and 441 cubic feet, inside this heater's 283 to 460. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 484 cubic feet, which is past the CORE 9 and into CORE 11 territory.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a CORE is 80 inches (2030 mm).\u003c\/b\u003e HUUM recommends 80 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eFive exteriors, two trims\u003c\/p\u003e\n    \u003ch2\u003eChoosing the exterior of the CORE 9\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eThe CORE is a square heater with its stone in an open top. HUUM makes it in a black metal case, or without a case to clad in ceramic tile, stone, glass or wood, as HUUM puts it, and HUUM lists it as a European Product Design Award winner.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-block\"\u003e\n        \u003ch3\u003eBlack\u003c\/h3\u003e\n        \u003cp\u003eHUUM's finished version, in what it calls a sleek black metal casing. It comes with a black top trim only.\u003c\/p\u003e\n        \u003ch3\u003eUnfinished, to finish yourself\u003c\/h3\u003e\n        \u003cp\u003eThe caseless CORE, which HUUM describes as allowing easy customization. It ships with 4 unfinished metal shields, 4 cover strips and their screws, and the manual's two appendices show slat finishes and tile. Choose a black or stainless steel top trim.\u003c\/p\u003e\n        \u003ch3\u003eAlder, aspen or thermo-aspen\u003c\/h3\u003e\n        \u003cp\u003eThe unfinished CORE with HUUM's own wood panels. The 4 panels and their fastening screws come in the box and fit to the metal shields. Each comes with a black or stainless steel top trim.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcore9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black_d5956cba-c849-44d2-8a9f-928a92ed9274.jpg?v=1790070185\u0026amp;width=1200\" alt=\"HUUM CORE floor standing electric sauna heater, Black exterior, with its stones laid\" width=\"1084\" height=\"1084\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CORE in its Black exterior.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003e\u003cb\u003eFinishing it yourself has rules.\u003c\/b\u003e HUUM's manual limits one side panel, finish included, to 44.1 lb (20 kg), caps the fixing screw diameter at 4.2 mm, and asks for at least a 1 inch (25 mm) air gap under the heater. It also advises connecting the wiring and checking the heater works before you fit the finish, because a finished CORE is heavy and hard to turn. Use a material suitable for the sauna, and ask a specialist about fasteners. The horizontal finish and tile route in the manual's Appendix 2 fixes to mounting brackets that HUUM sells as an accessory.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n    \u003cp\u003eHUUM says the CORE may be embedded into the sauna bench in its full length, and describes its safety distances as small enough for various placement options. The manual's 2 in (50 mm) clearance to flammable material still applies, so keep that gap to the bench on every side.\u003c\/p\u003e\n    \u003ch3\u003eWhat changes at 9 kW\u003c\/h3\u003e\n    \u003cp\u003eThe output, the rated room and the circuit. HUUM's manual calls for a 50 amp breaker with 8 AWG cable, against 30 amps and 10 AWG for the CORE 6. The clearances, the body and the stone load stay the same.\u003c\/p\u003e\n\u003cp\u003eOn 208 volts it makes 6.75 kW for 212 to 354 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore9-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CORE 9 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcore9-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page, in the exterior and trim you choose.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eHUUM's manual says any certified control panel may be used, and that it must have a timer function. HUUM's matched control is the UKU: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e3 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eThe heater holds about 88.2 lb (40 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes, so 3 boxes covers it with a little to spare.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM's manual recommends a guard rail of a material with low heat capacity and poor thermal conductivity, and says the heater's minimum safety distances still have to be kept to a flammable guard. Check what your local code has adopted.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CORE 9 needs\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-ladder hcore9-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcore9-on\"\u003e\n\u003ctd class=\"hcore9-kw\"\u003e240 V\u003cspan class=\"hcore9-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW, 37.5 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcore9-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e6.75 kW, 32.45 A, 40 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eA means of disconnecting all poles, a circuit breaker, goes on the power circuit before the sauna control. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and a junction box in the sauna room must be waterproof and no higher than 19 11\/16 inches (50 cm) from the floor. The power cable enters through the bottom cover.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/25\/SUW\/00121X covers the CORE 9 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore9-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CORE 9 can go\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eAll three CORE sizes share one set of clearances in HUUM's manual, and they are small.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CORE 9\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the walls around the heater\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater size, HUUM's table\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e41.9 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the CORE anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. On the unfinished and wood versions, the final outside size depends on the exterior fitted.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-in-sauna_712c1722-805e-4968-b5f9-ce74170faee3.jpg?width=1200\" alt=\"HUUM CORE Black in a barrel sauna\" width=\"896\" height=\"896\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CORE 9 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 9 kW into steam, and the heater may be used only when it has been correctly filled.\u003c\/p\u003e\n    \u003cp\u003eHUUM's manual says the heater holds about \u003cstrong\u003e88.2 lb (40 kg)\u003c\/strong\u003e of stone 2 to 4 inches (5 to 10 cm) across. That is \u003cstrong\u003e3 boxes\u003c\/strong\u003e of HUUM's 33 pound olivine diabase, with a little left over.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer surface goes close together, and no element may be left visible. HUUM strongly recommends having a specialist lay the stone, and allows ceramic stones only at your own risk.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual warns that a too sparsely filled stone container causes a fire hazard,\u003c\/b\u003e and that defects caused by unsuitable stone are not covered by the warranty.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore9-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-top_00ba0ce2-e739-4caf-b919-4e2884bfbfe8.jpg?width=1200\" alt=\"Stones in the top of a HUUM CORE Black\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore9-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CORE 9 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e9 kW x 0.183 = about 1.65 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 4.94 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 15 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CORE 9 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcore9-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcore9-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003cli\u003eUnfinished and wood versions: 4 unfinished metal shields, 4 cover strips and their screws\u003c\/li\u003e\n\u003cli\u003eWood versions: 4 wood panels and their fastening screws\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 3 boxes of stone are required to operate the heater. On the unfinished version, the exterior is yours to supply.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore9-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 9 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcore9-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-spec\"\u003e\n\u003ccaption\u003eFrom the CORE user manual US v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e9 kW at 240 V, 6.75 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 cu. ft. at 208 V (after the cold-wall adjustment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e80 in (2030 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e37.5 A at 240 V, 32.45 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 40 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 88.2 lb (40 kg), 3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the walls\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control with a timer function, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcore9-tw\"\u003e\u003ctable class=\"hcore9-spec\"\u003e\n\u003ccaption\u003eOptions, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eExteriors\u003c\/th\u003e\n\u003ctd\u003eBlack, unfinished, alder, aspen, thermo-aspen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTop trim\u003c\/th\u003e\n\u003ctd\u003eBlack or stainless steel (Black exterior: black only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e41.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V or 208 V, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/25\/SUW\/00121X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 9 against the rest of the CORE range\u003c\/h2\u003e\n    \u003cp class=\"hcore9-lead\"\u003eAll three share one body, one set of clearances, one stone load and the same five exteriors. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcore9-tw hcore9-tw--scroll\"\u003e\u003ctable class=\"hcore9-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-6-electric-sauna-heater\"\u003e\u003cspan class=\"hcore9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-m\"\u003eCORE 6\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-here\"\u003e6.5 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hcore9-me\"\u003e\n\u003cspan class=\"hcore9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-m\"\u003eCORE 9\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-11-electric-sauna-heater\"\u003e\u003cspan class=\"hcore9-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-m\"\u003eCORE 11\u003c\/span\u003e\u003cspan class=\"hcore9-cmp-here\"\u003e10.5 kW, 354 to 566 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e37.5 A\u003c\/td\u003e\n\u003ctd\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e8 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd class=\"hcore9-me\"\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CORE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CORE tops out at 10.5 kW and 566 cubic feet. For a bigger room, the \u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eHUUM HIVE\u003c\/a\u003e goes to 18 kW. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcore9-c\"\u003e\n    \u003cp class=\"hcore9-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 9 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcore9-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CORE 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet on 240 volts, or 212 to 354 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich CORE exterior should I choose?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eBlack is HUUM's finished black metal case, with a black top trim. Unfinished is the caseless heater you clad yourself in wood slats, tile, stone or glass, following the manual's finishing appendices. Alder, aspen and thermo-aspen are the unfinished heater with HUUM's wood panels in the box. The unfinished and wood versions come with a black or stainless steel top trim.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 9 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eNo. It needs a separate certified control with a timer function, bought separately. HUUM's matched control is the UKU, in Local or Wi-Fi form, and at this output it runs from the UKU's main module without the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CORE 9 need?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003e3 boxes. HUUM's manual says the heater holds about 88.2 lb (40 kg) of stone 2 to 4 inches across, and HUUM's olivine diabase comes in 33 pound boxes. The heater may be used only when it has been correctly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CORE 9 need?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eOn 240 volts it draws 37.5 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 32.45 A, a 40 A breaker and 8 AWG. Your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CORE 9 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CORE 9 for the United States and Canada under certificate SGSNA\/25\/SUW\/00121X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is powered and controlled by a certified controller and the wiring to that controller follows the National Electrical Code. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the SGS directory record for it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I finish the unfinished CORE myself?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eYes, that is what it is for. HUUM's manual limits each side panel, finish included, to 44.1 lb (20 kg), caps the screw diameter at 4.2 mm, and asks for a 1 inch (25 mm) air gap under the heater. Use a material suitable for the sauna, and connect and test the wiring before you fit the finish.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CORE 9 myself?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM strongly recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 9 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CORE 9?\u003c\/summary\u003e\u003cdiv class=\"hcore9-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcore9-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcore9-c\"\u003e\n\u003cp class=\"hcore9-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CORE 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcore9-who\"\u003e\n\u003cimg class=\"hcore9-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcore9-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcore9-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Black","offer_id":53514543333743,"sku":"H1013082","price":2195.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, black trim","offer_id":53514543432047,"sku":"H1013022+H3013011","price":2940.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, stainless trim","offer_id":53514543464815,"sku":"H1013052+H3013011","price":2940.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, black trim","offer_id":53514543497583,"sku":"H1013022+H3013031","price":2940.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, stainless trim","offer_id":53514543530351,"sku":"H1013052+H3013031","price":2940.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, black trim","offer_id":53514543563119,"sku":"H1013022+H3013021","price":3062.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, stainless trim","offer_id":53514543923567,"sku":"H1013052+H3013021","price":3062.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, black trim","offer_id":53514543366511,"sku":"H1013022","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, stainless trim","offer_id":53514543399279,"sku":"H1013052","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black_d5956cba-c849-44d2-8a9f-928a92ed9274.jpg?v=1790070185"},{"product_id":"huum-core-11-electric-sauna-heater","title":"HUUM CORE 11 10.5kW Electric Sauna Heater","description":"\u003cstyle\u003e.hcore11{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe 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(max-width:560px){.hcore11 .hcore11-ladder thead{position:absolute;left:-9999px}.hcore11 .hcore11-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hcore11 .hcore11-ladder tr.hcore11-on{background:var(--hl)}.hcore11 .hcore11-ladder td{display:block;border:0;padding:0}.hcore11 .hcore11-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hcore11 .hcore11-hl td,.hcore11 .hcore11-hl th,.hcore11 .hcore11-ladder tr.hcore11-on td,.hcore11 table.hcore11-cmp td.hcore11-me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hcore11 table.hcore11-cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hcore11 table th,.rte .hcore11 table td{padding:11px var(--gut)}.hcore11 .hcore11-ladder th:last-child,.hcore11 .hcore11-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hcore11 .hcore11-buy{align-items:start}.hcore11 .hcore11-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hcore11 table.hcore11-cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hcore11 table.hcore11-cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hcore11 .hcore11-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hcore11 table.hcore11-spec th,.hcore11 table.hcore11-spec td{display:block;width:auto}.hcore11 table.hcore11-spec th{border-bottom:0;padding-bottom:0}}.hcore11 .hcore11-vid .video-wrapper{position:absolute !important;inset:0;width:100%;height:100%;padding:0 !important;margin:0}.hcore11 .hcore11-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hcore11 .hcore11-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hcore11 .hcore11-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hcore11 .hcore11-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hcore11 .hcore11-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hcore11 .hcore11-close p.hcore11-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hcore11 .hcore11-stat3 a{color:var(--bright)}.hcore11 .hcore11-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hcore11 .hcore11-cmp thead a .hcore11-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hcore11 .hcore11-ladder.hcore11-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hcore11 .hcore11-ladder.hcore11-out td:last-child::before{content:\"Output:\\00a0\"}}.hcore11 .hcore11-tw + p,.hcore11 .hcore11-tw + h3,.hcore11 .hcore11-warn + p,.hcore11 .hcore11-warn + h3,.hcore11 .hcore11-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hcore11\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cdetails class=\"hcore11-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hcore11-ct\"\u003e7 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parts\"\u003eWhat you need\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eThe largest CORE\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM CORE 11 is a 10.5 kW floor standing electric sauna heater for rooms of 354 to 566 cubic feet\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003e10.5 kilowatts for rooms of 354 to 566 cubic feet, the top of the CORE range, still on one circuit and still inside what the UKU control's main module carries on its own.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-stat3\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore11-lbl\"\u003eThe room\u003c\/p\u003e\n        \u003cp class=\"hcore11-big\"\u003e354 to 566 cu. ft.\u003c\/p\u003e\n        \u003cp\u003eLength by width by height, in feet. Add 3.3 cubic feet for every square foot of uninsulated glass, tile or brick wall, then size from the adjusted number.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore11-lbl\"\u003eRated current\u003c\/p\u003e\n        \u003cp class=\"hcore11-big\"\u003e43.75 A at 240 V\u003c\/p\u003e\n        \u003cp\u003eHUUM's manual calls for a 50 A breaker and 8 AWG cable. It is hardwired by a licensed electrician, who sizes the circuit to the National Electrical Code. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"hcore11-lbl\"\u003eThe rest of the order\u003c\/p\u003e\n        \u003cp class=\"hcore11-big\"\u003eControl and 3 boxes of stone\u003c\/p\u003e\n        \u003cp\u003eNeither is in the carton, and neither needs a second order: open \u003cstrong\u003eComplete your heater\u003c\/strong\u003e just above the Add to Cart button and both travel on this one. A \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU control\u003c\/a\u003e runs the heater from outside the room, and the heater holds about 88.2 lb of \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003esauna stone\u003c\/a\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore11-tinted\" id=\"fit\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eSizing\u003c\/p\u003e\n    \u003ch2\u003eWill the HUUM CORE 11 heat your sauna?\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eSauna heaters are sized on room volume, not floor area. Measure the room in feet and multiply length by width by height, then pick the heater whose published range contains that figure.\u003c\/p\u003e\n    \u003cp\u003eHUUM rates the CORE 11 for \u003cstrong\u003e354 to 566 cubic feet\u003c\/strong\u003e on a 240 volt supply, and its manual warns that the warranty is not valid if the heater output does not match the calculated room volume.\u003c\/p\u003e\n    \u003cp\u003eCold surfaces change the answer. HUUM's manual says to add \u003cstrong\u003e3.3 cubic feet of volume for every square foot\u003c\/strong\u003e of uninsulated brick, tile or glass wall in the room. It does not say whether a glass door counts, so counting it is the cautious choice.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-ladder hcore11-out\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore11-kw\"\u003eCORE 6\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft. at 240 V, 142 to 248 at 208 V\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hcore11-kw\"\u003eCORE 9\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft. at 240 V, 212 to 354 at 208 V\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hcore11-on\"\u003e\n\u003ctd class=\"hcore11-kw\"\u003eCORE 11 \u003cspan class=\"hcore11-tag\"\u003eThis heater\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 at 208 V\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA worked example for the CORE 11\u003c\/h3\u003e\n    \u003cp\u003eTake a room 10 feet by 7.5 feet with a 7 foot ceiling: 75 square feet of floor and 525 cubic feet, inside this heater's 354 to 566. Count a full glass door, take 13 square feet as an example and measure your own, and at 3.3 cubic feet a square foot the room behaves like about 568 cubic feet, which is past the top of the CORE 11's range.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003e\u003cb\u003eThe minimum sauna room height for a CORE is 80 inches (2030 mm).\u003c\/b\u003e HUUM recommends 80 to 91 inches and asks for 44 to 51 inches between the top bench and the ceiling. For a taller room, HUUM advises lowering the ceiling to reduce the volume.\u003c\/p\u003e\u003c\/div\u003e\n    \u003cp\u003eNot sure which way a borderline room goes? Our \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e walks the same arithmetic, the \u003ca href=\"\/pages\/sauna-heater-buyers-guide\"\u003esauna heater buyers guide\u003c\/a\u003e explains what the numbers mean, or call and we will do it with you.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"design\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eFive exteriors, two trims\u003c\/p\u003e\n    \u003ch2\u003eChoosing the exterior of the CORE 11\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eThe CORE is a square heater with its stone in an open top. HUUM makes it in a black metal case, or without a case to clad in ceramic tile, stone, glass or wood, as HUUM puts it, and HUUM lists it as a European Product Design Award winner.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-block\"\u003e\n        \u003ch3\u003eBlack\u003c\/h3\u003e\n        \u003cp\u003eHUUM's finished version, in what it calls a sleek black metal casing. It comes with a black top trim only.\u003c\/p\u003e\n        \u003ch3\u003eUnfinished, to finish yourself\u003c\/h3\u003e\n        \u003cp\u003eThe caseless CORE, which HUUM describes as allowing easy customization. It ships with 4 unfinished metal shields, 4 cover strips and their screws, and the manual's two appendices show slat finishes and tile. Choose a black or stainless steel top trim.\u003c\/p\u003e\n        \u003ch3\u003eAlder, aspen or thermo-aspen\u003c\/h3\u003e\n        \u003cp\u003eThe unfinished CORE with HUUM's own wood panels. The 4 panels and their fastening screws come in the box and fit to the metal shields. Each comes with a black or stainless steel top trim.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cdiv class=\"hcore11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black_d799308c-ffe8-40d9-984b-79269c986b10.jpg?v=1790070226\u0026amp;width=1200\" alt=\"HUUM CORE floor standing electric sauna heater, Black exterior, with its stones laid\" width=\"1084\" height=\"1084\" loading=\"eager\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe HUUM CORE in its Black exterior.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003e\u003cb\u003eFinishing it yourself has rules.\u003c\/b\u003e HUUM's manual limits one side panel, finish included, to 44.1 lb (20 kg), caps the fixing screw diameter at 4.2 mm, and asks for at least a 1 inch (25 mm) air gap under the heater. It also advises connecting the wiring and checking the heater works before you fit the finish, because a finished CORE is heavy and hard to turn. Use a material suitable for the sauna, and ask a specialist about fasteners. The horizontal finish and tile route in the manual's Appendix 2 fixes to mounting brackets that HUUM sells as an accessory.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eIt can be sunk into the bench\u003c\/h3\u003e\n    \u003cp\u003eHUUM says the CORE may be embedded into the sauna bench in its full length, and describes its safety distances as small enough for various placement options. The manual's 2 in (50 mm) clearance to flammable material still applies, so keep that gap to the bench on every side.\u003c\/p\u003e\n    \u003ch3\u003eWhere the CORE 11 sits\u003c\/h3\u003e\n    \u003cp\u003eAt 10.5 kW it stays under the 11 kW the UKU's main module carries, so it needs no extension box. HUUM's manual calls for a 50 amp breaker with 8 AWG cable.\u003c\/p\u003e\n\u003cp\u003eOn 208 volts it makes 7.9 kW for 265 to 424 cubic feet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore11-tinted\" id=\"parts\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n    \u003ch2\u003eWhat a working CORE 11 takes, beyond the heater\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eA sauna heater is several purchases, and the others are easy to miss. Nothing here is padding: the heater will not run without them.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-spec\"\u003e\n      \u003ccaption\u003eRequired to operate\u003c\/caption\u003e\n      \u003ctr class=\"hcore11-hl\"\u003e\n\u003cth\u003eThe heater\u003c\/th\u003e\n\u003ctd\u003eThis page, in the exterior and trim you choose.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eA certified control\u003c\/th\u003e\n\u003ctd\u003eHUUM's manual says any certified control panel may be used, and that it must have a timer function. HUUM's matched control is the UKU: the \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eHUUM UKU Local control\u003c\/a\u003e or the \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eHUUM UKU Wi-Fi control\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003e3 boxes of stone\u003c\/th\u003e\n\u003ctd\u003eThe heater holds about 88.2 lb (40 kg), 2 to 4 inches (5 to 10 cm). \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM olivine diabase sauna stones\u003c\/a\u003e come in 33 pound boxes, so 3 boxes covers it with a little to spare.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eA guard is a code item, not an upsell\u003c\/h3\u003e\n    \u003cp\u003eThe International Residential Code asks for sauna heaters to be protected from accidental contact by a guard made of a material with low thermal conductivity, such as wood, without blocking the heat. HUUM's manual recommends a guard rail of a material with low heat capacity and poor thermal conductivity, and says the heater's minimum safety distances still have to be kept to a flammable guard. Check what your local code has adopted.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003eBuying the heater, the control and the stone together settles the order in one go. Or call and we will price the heater, control and stone together.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"electrical\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eElectrical\u003c\/p\u003e\n    \u003ch2\u003eThe breaker and wire size the HUUM CORE 11 needs\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eSettle this before you buy, because it is the line item that surprises people. The heater is hardwired by a licensed electrician.\u003c\/p\u003e\n    \u003cp\u003eThe figures below are HUUM's, from its US manual. They are the manufacturer's minimum, not a design for your house: sauna heating is a continuous load, so the National Electrical Code can require a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your electrician sizes the circuit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-ladder hcore11-rooms\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003cth\u003eWhat HUUM specifies\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hcore11-on\"\u003e\n\u003ctd class=\"hcore11-kw\"\u003e240 V\u003cspan class=\"hcore11-tag\"\u003eMost homes\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e10.5 kW, 43.75 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"hcore11-kw\"\u003e208 V\u003c\/td\u003e\n\u003ctd\u003e7.9 kW, 37.98 A, 50 A breaker, 8 AWG minimum cable\u003c\/td\u003e\n\u003ctd\u003e265 to 424 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhat the manual requires\u003c\/h3\u003e\n    \u003cp\u003eA means of disconnecting all poles, a circuit breaker, goes on the power circuit before the sauna control. Crimping the cable ends is mandatory, cable with non heat resistant PVC insulation is not allowed, and a junction box in the sauna room must be waterproof and no higher than 19 11\/16 inches (50 cm) from the floor. The power cable enters through the bottom cover.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM recommends connecting the heater without a GFCI breaker.\u003c\/b\u003e Its manual says it is recommended to connect the unit to the mains without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted: an outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhy it is listed, and why that matters\u003c\/h3\u003e\n    \u003cp\u003eListed, but by SGS rather than UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and its certificate SGSNA\/25\/SUW\/00121X covers the CORE 11 for the United States and Canada. SGS records conditions against that listing, and they are set out in full in the listing section above.\u003c\/p\u003e\n  \u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater either way, wired the same way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, which is why the rows under the Add to Cart button and the table below both give two. Your electrician reads the panel and tells you which row applies. Either way it is hardwired into the circuit, not plugged into an outlet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore11-tinted\" id=\"install\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eClearances\u003c\/p\u003e\n    \u003ch2\u003eWhere the HUUM CORE 11 can go\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eAll three CORE sizes share one set of clearances in HUUM's manual, and they are small.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-spec\"\u003e\n      \u003ccaption\u003eMinimum distances, CORE 11\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eTo the walls around the heater\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAbove the heater, to the ceiling\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater size, HUUM's table\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e41.9 lb without stone\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eHUUM's manual has the CORE anchored to the floor with brackets on the heater legs, fixed with a suitable screw, preferably at least 6 x 40 mm. On the unfinished and wood versions, the final outside size depends on the exterior fitted.\u003c\/p\u003e\n    \u003cp\u003eThe room itself has to be built for a sauna, with an insulated shell, a reflective vapor barrier and supply and exhaust vents. Our \u003ca href=\"\/collections\/traditional-saunas\"\u003etraditional sauna rooms\u003c\/a\u003e arrive built that way.\u003c\/p\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-in-sauna_f8b1767a-2bab-4cf5-aca7-b67373563baa.jpg?width=1200\" alt=\"HUUM CORE Black in a barrel sauna\" width=\"896\" height=\"896\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eIn a finished sauna, with the clearances this page lists.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eStone\u003c\/p\u003e\n    \u003ch2\u003eHow much stone the CORE 11 takes, and how to lay it\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eThe stone is not a finishing touch. It is the thermal mass that turns 10.5 kW into steam, and the heater may be used only when it has been correctly filled.\u003c\/p\u003e\n    \u003cp\u003eHUUM's manual says the heater holds about \u003cstrong\u003e88.2 lb (40 kg)\u003c\/strong\u003e of stone 2 to 4 inches (5 to 10 cm) across. That is \u003cstrong\u003e3 boxes\u003c\/strong\u003e of HUUM's 33 pound olivine diabase, with a little left over.\u003c\/p\u003e\n    \u003ch3\u003eLaying it\u003c\/h3\u003e\n    \u003cp\u003eWash the stone first. Stack it loosely between the elements: HUUM's manual warns that stone packed too close makes the elements overheat, which shortens their life and slows the heating. The stone on the outer surface goes close together, and no element may be left visible. HUUM strongly recommends having a specialist lay the stone, and allows ceramic stones only at your own risk.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003e\u003cb\u003eHUUM's manual warns that a too sparsely filled stone container causes a fire hazard,\u003c\/b\u003e and that defects caused by unsuitable stone are not covered by the warranty.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cfigure\u003e\u003cdiv class=\"hcore11-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black-top_5f82e77d-fefa-4674-8666-4f50d1bb456a.jpg?width=1200\" alt=\"Stones in the top of a HUUM CORE Black\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eLooking down into the stone bed.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore11-tinted\" id=\"costs\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eRunning cost\u003c\/p\u003e\n    \u003ch2\u003eWhat the CORE 11 costs to run\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eA sauna heater draws its full rated power while it heats, then cycles on the thermostat to hold temperature. That makes the ceiling easy to calculate and the real figure lower.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-spec\"\u003e\n      \u003ccaption\u003eAt the US average residential price of 18.3 cents a kilowatt hour (EIA, June 2026)\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eFull output, one hour\u003c\/th\u003e\n\u003ctd\u003e10.5 kW x 0.183 = about 1.92 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree hours at full draw, heat up and a session\u003c\/th\u003e\n\u003ctd\u003eabout 5.76 dollars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eThree of those a week\u003c\/th\u003e\n\u003ctd\u003eabout 17 dollars a week\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eThose are ceilings, not averages: once the room is at temperature the thermostat cycles the elements, so the real bill lands under these ceilings. Your own rate is on your utility bill and varies widely by state.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-warn\"\u003e\u003cp\u003e\u003cb\u003eInsulation controls this number, not the heater.\u003c\/b\u003e HUUM's manuals call for an insulated room so the heater can run at its regular output.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"crate\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n    \u003ch2\u003eIn the CORE 11 carton\u003c\/h2\u003e\n    \u003cdiv class=\"hcore11-pairup\"\u003e\n      \u003cdiv\u003e\n        \u003cul class=\"hcore11-chk\"\u003e\n\u003cli\u003eElectric heater\u003c\/li\u003e\n\u003cli\u003e4 adjustable legs\u003c\/li\u003e\n\u003cli\u003eInstallation and operation manual\u003c\/li\u003e\n\u003cli\u003eUnfinished and wood versions: 4 unfinished metal shields, 4 cover strips and their screws\u003c\/li\u003e\n\u003cli\u003eWood versions: 4 wood panels and their fastening screws\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eNot included\u003c\/h3\u003e\n        \u003cp\u003eThe control, the stone, and the electrical work. The control and 3 boxes of stone are required to operate the heater. On the unfinished version, the exterior is yours to supply.\u003c\/p\u003e\n        \u003ch3\u003eLead time\u003c\/h3\u003e\n        \u003cp\u003eDelivery estimates are shown on this page and at checkout. If you need a date before you commit, call us and we will confirm the current position with the distributor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hcore11-tinted\" id=\"specs\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eReference\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 11 specifications\u003c\/h2\u003e\n    \u003cdetails class=\"hcore11-more\" open\u003e\n      \u003csummary\u003eFull specification tables\u003c\/summary\u003e\n      \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-spec\"\u003e\n\u003ccaption\u003eFrom the CORE user manual US v9 (November 2025), Tables 1 to 3\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater output\u003c\/th\u003e\n\u003ctd\u003e10.5 kW at 240 V, 7.9 kW at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom volume\u003c\/th\u003e\n\u003ctd\u003e354 to 566 cu. ft. at 240 V, 265 to 424 cu. ft. at 208 V (after the cold-wall adjustment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum room height\u003c\/th\u003e\n\u003ctd\u003e80 in (2030 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e43.75 A at 240 V, 37.98 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit breaker\u003c\/th\u003e\n\u003ctd\u003e50 A at 240 V, 50 A at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum supply cable\u003c\/th\u003e\n\u003ctd\u003e8 AWG at 240 V, 8 AWG at 208 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone capacity\u003c\/th\u003e\n\u003ctd\u003eAbout 88.2 lb (40 kg), 3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003ctd\u003e2 to 4 in (5 to 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.16 in W x 15.16 in D x 32.7 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the walls\u003c\/th\u003e\n\u003ctd\u003e2 in (50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance above the heater\u003c\/th\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir gap under the heater\u003c\/th\u003e\n\u003ctd\u003e1 in (25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing, anchored with brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eSeparate certified control with a timer function, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n      \u003cdiv class=\"hcore11-tw\"\u003e\u003ctable class=\"hcore11-spec\"\u003e\n\u003ccaption\u003eOptions, certification and warranty\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eExteriors\u003c\/th\u003e\n\u003ctd\u003eBlack, unfinished, alder, aspen, thermo-aspen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTop trim\u003c\/th\u003e\n\u003ctd\u003eBlack or stainless steel (Black exterior: black only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e41.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V or 208 V, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eSGS Listed for North America (SGSNA\/25\/SUW\/00121X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eHUUM limited warranty, 3 years for private use and 1 year for commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eThe range\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 11 against the rest of the CORE range\u003c\/h2\u003e\n    \u003cp class=\"hcore11-lead\"\u003eAll three share one body, one set of clearances, one stone load and the same five exteriors. Every figure below is HUUM's own, from its US manual, and the breaker column is the manufacturer's minimum rather than a design for your house.\u003c\/p\u003e\n    \u003cp\u003eScroll the table sideways to see every model.\u003c\/p\u003e\n    \u003cdiv class=\"hcore11-tw hcore11-tw--scroll\"\u003e\u003ctable class=\"hcore11-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-6-electric-sauna-heater\"\u003e\u003cspan class=\"hcore11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-m\"\u003eCORE 6\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-here\"\u003e6.5 kW, 177 to 318 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/huum-core-9-electric-sauna-heater\"\u003e\u003cspan class=\"hcore11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-m\"\u003eCORE 9\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-here\"\u003e9 kW, 283 to 460 cu. ft.\u003c\/span\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth class=\"hcore11-me\"\u003e\n\u003cspan class=\"hcore11-cmp-h\"\u003eHUUM\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-m\"\u003eCORE 11\u003c\/span\u003e\u003cspan class=\"hcore11-cmp-here\"\u003eYou are here\u003c\/span\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput at 240 V\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e10.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated room\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e43.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaker\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum cable\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd class=\"hcore11-me\"\u003e3 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003ch3\u003eWhen a CORE is the wrong heater\u003c\/h3\u003e\n    \u003cp\u003eThe CORE tops out at 10.5 kW and 566 cubic feet. For a bigger room, the \u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eHUUM HIVE\u003c\/a\u003e goes to 18 kW. Compare the whole range on our \u003ca href=\"\/collections\/electric-sauna-heaters\"\u003eelectric sauna heaters\u003c\/a\u003e page, browse every \u003ca href=\"\/collections\/sauna-heaters\"\u003esauna heater\u003c\/a\u003e we carry, or see every model in our \u003ca href=\"\/collections\/huum\"\u003eHUUM sauna heaters\u003c\/a\u003e collection.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003cdiv class=\"hcore11-c\"\u003e\n    \u003cp class=\"hcore11-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM CORE 11 questions buyers ask before ordering\u003c\/h2\u003e\n    \u003cdiv class=\"hcore11-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat size sauna will the HUUM CORE 11 heat?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eHUUM rates it for 354 to 566 cubic feet on 240 volts, or 265 to 424 cubic feet on 208 volts. Measure length by width by height in feet, then add 3.3 cubic feet for every square foot of uninsulated glass, brick or tile wall, and size from that number.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich CORE exterior should I choose?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eBlack is HUUM's finished black metal case, with a black top trim. Unfinished is the caseless heater you clad yourself in wood slats, tile, stone or glass, following the manual's finishing appendices. Alder, aspen and thermo-aspen are the unfinished heater with HUUM's wood panels in the box. The unfinished and wood versions come with a black or stainless steel top trim.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 11 come with a control?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eNo. It needs a separate certified control with a timer function, bought separately. HUUM's matched control is the UKU, in Local or Wi-Fi form, and at this output it runs from the UKU's main module without the extension box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many boxes of stone does the HUUM CORE 11 need?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003e3 boxes. HUUM's manual says the heater holds about 88.2 lb (40 kg) of stone 2 to 4 inches across, and HUUM's olivine diabase comes in 33 pound boxes. The heater may be used only when it has been correctly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat breaker and wire does the HUUM CORE 11 need?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eOn 240 volts it draws 43.75 A and HUUM specifies a 50 A breaker with 8 AWG cable. On 208 volts it is 37.98 A, a 50 A breaker and 8 AWG. Your electrician sizes the install to the National Electrical Code and to local amendments. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HUUM CORE 11 UL listed?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the CORE 11 for the United States and Canada under certificate SGSNA\/25\/SUW\/00121X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is powered and controlled by a certified controller and the wiring to that controller follows the National Electrical Code. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the SGS directory record for it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I finish the unfinished CORE myself?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eYes, that is what it is for. HUUM's manual limits each side panel, finish included, to 44.1 lb (20 kg), caps the screw diameter at 4.2 mm, and asks for a 1 inch (25 mm) air gap under the heater. Use a material suitable for the sauna, and connect and test the wiring before you fit the finish.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install the HUUM CORE 11 myself?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eNot if you want the warranty. HUUM's warranty requires the heater to be installed and connected by a licensed electrician, with proof presented to HUUM, and HUUM strongly recommends a specialist lays the stone. The heater is hardwired, crimped cable ends are mandatory and the manual forbids cable with non heat resistant PVC insulation. Keep the electrician's invoice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the HUUM CORE 11 need a GFCI breaker?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eHUUM's manual says it is recommended to connect the heater without one. Whether you can follow that depends on where the sauna goes and which edition of the electrical code your area has adopted. An outdoor sauna at a home may fall inside the Code's ground fault requirement for outdoor outlets at these ratings, depending on the edition adopted and how your inspector reads it, while an indoor hardwired heater usually is not caught. Where the manual and the adopted code disagree, the code and your inspector decide.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the HUUM CORE 11?\u003c\/summary\u003e\u003cdiv class=\"hcore11-fb\"\u003e\u003cp\u003eHUUM warrants its electric heaters, wood stoves and controls for 3 years in a private sauna and 1 year in a commercial one, from the date of purchase, with spare parts covered for 1 year. Heating elements, controller sensors, stones, HUUM accessories, and wood stove door glass and ash grates are excluded, and so is damage from unsuitable stones or from a heater sized wrong for the room. HUUM counts it as commercial use if a registered business uses the product commercially, if a private user uses it commercially, or if a private user runs it for more than 1,500 hours in a 12 month period. For the warranty to apply, the heater has to be installed and connected by a licensed electrician with proof presented to HUUM, installed and operated to HUUM's manual and to local building, electrical and fire codes, and installed complete. Damage found on delivery has to be reported to us within 48 hours of delivery, with photographs and before the heater is installed; that is our window, and because it is shorter than HUUM's 7 days, it is the one that applies to the HUUM warranty. Any defect has to be reported within 30 days of discovering it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hcore11-close\" id=\"order\"\u003e\n\u003cdiv class=\"hcore11-c\"\u003e\n\u003cp class=\"hcore11-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the CORE 11 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. The stone and the UKU control sit on this page, above Add to Cart, so the whole order goes in together. If you would rather take it in one line, we build the same parts as a \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater package\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hcore11-who\"\u003e\n\u003cimg class=\"hcore11-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hcore11-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hcore11-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Black","offer_id":53514564141423,"sku":"H1013092","price":2343.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, black trim","offer_id":53514564239727,"sku":"H1013032+H3013011","price":3075.0,"currency_code":"USD","in_stock":true},{"title":"Alder wood, stainless trim","offer_id":53514564272495,"sku":"H1013062+H3013011","price":3075.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, black trim","offer_id":53514564305263,"sku":"H1013032+H3013031","price":3075.0,"currency_code":"USD","in_stock":true},{"title":"Aspen wood, stainless trim","offer_id":53514564338031,"sku":"H1013062+H3013031","price":3075.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, black trim","offer_id":53514564370799,"sku":"H1013032+H3013021","price":3197.0,"currency_code":"USD","in_stock":true},{"title":"Thermo-Aspen wood, stainless trim","offer_id":53514564403567,"sku":"H1013062+H3013021","price":3197.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, black trim","offer_id":53514564174191,"sku":"H1013032","price":2135.0,"currency_code":"USD","in_stock":true},{"title":"Unfinished, stainless trim","offer_id":53514564206959,"sku":"H1013062","price":2135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-core-black_d799308c-ffe8-40d9-984b-79269c986b10.jpg?v=1790070226"},{"product_id":"huum-drop-6-sauna-heater-package","title":"HUUM DROP 6 Sauna Heater Package, 6 kW | UKU Control and 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and (max-width:560px){.hdrop6pkg .hdrop6pkg-ladder.hdrop6pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop6pkg .hdrop6pkg-ladder.hdrop6pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop6pkg .hdrop6pkg-tw + p,.hdrop6pkg .hdrop6pkg-tw + h3,.hdrop6pkg .hdrop6pkg-warn + p,.hdrop6pkg .hdrop6pkg-warn + h3,.hdrop6pkg .hdrop6pkg-more + p{margin-top:24px}.hdrop6pkg .hdrop6pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hdrop6pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hdrop6pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop6pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM DROP 6 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the DROP 6 with a UKU control and the 4 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hdrop6pkg-chk\"\u003e\n\u003cli\u003eThe HUUM DROP 6 sauna heater, 6 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003e4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hdrop6pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop6pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hdrop6pkg-big\"\u003e6 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 4.5 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop6pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hdrop6pkg-big\"\u003e177 to 318 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop6pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hdrop6pkg-big\"\u003e4 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hdrop6pkg-vidrow\"\u003e\n\u003cdiv class=\"hdrop6pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hdrop6pkg-vidbody\"\u003e\n\u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich DROP package suits your room\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 4 of them.\u003c\/p\u003e\n\u003cdiv class=\"hdrop6pkg-tw\"\u003e\u003ctable class=\"hdrop6pkg-ladder hdrop6pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-4-sauna-heater-package\"\u003eDROP 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop6pkg-on\"\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003eDROP 6 \u003cspan class=\"hdrop6pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eDROP 7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eDROP 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 177 to 318 cubic feet on a 240 volt supply and 142 to 248 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the DROP 6 is rated for\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-drop-6-electric-sauna-heater\"\u003eDROP 6 heater\u003c\/a\u003e for 177 to 318 cubic feet at 240 volts. It hangs on its wall frame, so the floor stays clear, and it measures 15.4 in wide, 13.2 in deep and 23.2 in tall. HUUM gives its stone capacity as about 121.3 lb (55 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 4 of them and a little stone is left over.\u003c\/p\u003e\n\u003cp\u003eThe DROP is the only HUUM electric heater light enough to travel by parcel, and the only one that hangs with its stone in the open on a wall frame, so the bench plan and the floor stay clear.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 4.5 kW and is rated for 142 to 248 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop6pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-6-studio_c960ed78-a4e1-4381-846d-49a521c86c30.jpg?width=1200\" alt=\"HUUM DROP 6 sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop6pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_faab9781-bd0e-431c-8cb4-4faa246f384f.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e25 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eThe DROP 6 draws 25 amps at 240 volts, and HUUM's manual calls for a 30 amp breaker on 10 AWG cable. It is hardwired, not plugged in.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 21.63 amps and 30 amps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eHUUM gives the DROP 6 a stone capacity of about 121.3 lb (55 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 4 of\nthem, which covers it with a little left over.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop6pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_0a167aa1-1d04-48d9-a974-63428dcdd0e4.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop6pkg-tw\"\u003e\u003ctable class=\"hdrop6pkg-spec\"\u003e\n\u003ccaption\u003eHUUM DROP 6 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e142 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.4 x 13.2 x 23.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e24.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e4 boxes, 121.3 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eNot needed at this output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e24.81 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the DROP 6. Those are the 5 closest of 11; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hdrop6pkg-tw\"\u003e\u003ctable class=\"hdrop6pkg-ladder hdrop6pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-4-sauna-heater-package\"\u003eDROP 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-6-sauna-heater-package\"\u003eCLIFF 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-6-sauna-heater-package\"\u003eHIVE Mini 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-6-sauna-heater-package\"\u003eSTEEL 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop6pkg-on\"\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003eDROP 6 \u003cspan class=\"hdrop6pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop6pkg-kw\"\u003e\u003ca href=\"\/products\/huum-core-6-sauna-heater-package\"\u003eCORE 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hdrop6pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e4 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hdrop6pkg-lead\"\u003eThe heater travels by ground parcel, light enough that there is no appointment, no liftgate and no curbside handover to arrange. The stone travels in its own boxes, 4 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Open the cartons the day they arrive and check the contents, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop6pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop6pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM DROP 6 package?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eThe DROP 6 heater, a HUUM UKU control in the panel finish you pick, and 4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the DROP 6 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 177 to 318 cubic feet at 240 volts, and 142 to 248 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the DROP 6 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eOne. HUUM's manual calls for a 30 amp breaker on 10 AWG cable, hardwired by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as about 121.3 lb (55 kg), and stone comes in 33 pound boxes, so the package carries 4. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the DROP 6 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 6 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop6pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop6pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop6pkg-c\"\u003e\n\u003cp class=\"hdrop6pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 6 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hdrop6pkg-who\"\u003e\n\u003cimg class=\"hdrop6pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop6pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop6pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520473325935,"sku":"HUUM-PKG-DROP6-LB","price":2888.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520473358703,"sku":"HUUM-PKG-DROP6-LW","price":3201.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520473391471,"sku":"HUUM-PKG-DROP6-WB","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520473424239,"sku":"HUUM-PKG-DROP6-WW","price":3463.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520473457007,"sku":"HUUM-PKG-DROP6-WG","price":3550.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520473489775,"sku":"HUUM-PKG-DROP6-WMR","price":3813.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, 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.hhivemini9pkg-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhivemini9pkg .hhivemini9pkg-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhivemini9pkg .hhivemini9pkg-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhivemini9pkg .hhivemini9pkg-close p.hhivemini9pkg-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhivemini9pkg .hhivemini9pkg-stat3 a{color:var(--bright)}.hhivemini9pkg .hhivemini9pkg-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhivemini9pkg .hhivemini9pkg-cmp thead a .hhivemini9pkg-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhivemini9pkg .hhivemini9pkg-ladder.hhivemini9pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhivemini9pkg .hhivemini9pkg-ladder.hhivemini9pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hhivemini9pkg .hhivemini9pkg-tw + p,.hhivemini9pkg .hhivemini9pkg-tw + h3,.hhivemini9pkg .hhivemini9pkg-warn + p,.hhivemini9pkg .hhivemini9pkg-warn + h3,.hhivemini9pkg .hhivemini9pkg-more + p{margin-top:24px}.hhivemini9pkg .hhivemini9pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hhivemini9pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hhivemini9pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhivemini9pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM HIVE Mini 9 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the HIVE Mini 9 with a UKU control and the 10 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hhivemini9pkg-chk\"\u003e\n\u003cli\u003eThe HUUM HIVE Mini 9 sauna heater, 9 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003e10 boxes of HUUM olivine diabase stone, 331 lb (150 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhivemini9pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hhivemini9pkg-big\"\u003e9 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 6.75 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhivemini9pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hhivemini9pkg-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhivemini9pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hhivemini9pkg-big\"\u003e10 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9pkg-vidrow\"\u003e\n\u003cdiv class=\"hhivemini9pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hhivemini9pkg-vidbody\"\u003e\n\u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich HIVE Mini package suits your room\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 3 of them.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9pkg-tw\"\u003e\u003ctable class=\"hhivemini9pkg-ladder hhivemini9pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-6-sauna-heater-package\"\u003eHIVE Mini 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhivemini9pkg-on\"\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003eHIVE Mini 9 \u003cspan class=\"hhivemini9pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-11-sauna-heater-package\"\u003eHIVE Mini 11\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 283 to 460 cubic feet on a 240 volt supply and 212 to 354 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the HIVE Mini 9 is rated for\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-hive-mini-9-electric-sauna-heater\"\u003eHIVE Mini 9 heater\u003c\/a\u003e for 283 to 460 cubic feet at 240 volts. It stands on four adjustable legs, and it measures 18.13 in across and 29.53 in tall. HUUM gives its stone capacity as 331 lb (150 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 10 of them.\u003c\/p\u003e\n\u003cp\u003eThe HIVE Mini is the round one: an open cage of stone held in stainless steel, on four adjustable legs. It can also sit partly inside a bench with HUUM's embedding flange, which is sold separately.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 6.75 kW and is rated for 212 to 354 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhivemini9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-mini-9-studio_5bd53695-75c9-498c-a835-7ca08ffd4e12.jpg?width=1200\" alt=\"HUUM HIVE Mini 9 sauna heater\" width=\"1000\" height=\"1000\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhivemini9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_90b226e6-8613-4fa8-857f-cd05262350ea.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e37.5 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eThe HIVE Mini 9 draws 37.5 amps at 240 volts, and HUUM's manual calls for a 50 amp breaker on 6 AWG cable. It is hardwired, not plugged in.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 32.45 amps and 40 amps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eHUUM gives the HIVE Mini 9 a stone capacity of about 331 lb (150 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 10 of\nthem, which covers it.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhivemini9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_880b3e00-d27a-4199-bf36-7cc84a41ab01.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hhivemini9pkg-tw\"\u003e\u003ctable class=\"hhivemini9pkg-spec\"\u003e\n\u003ccaption\u003eHUUM HIVE Mini 9 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE Mini 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e6.75 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e6 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e18.13 in across, 29.53 in tall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e39.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e3.53 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e10 boxes, 331 lb (150 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eNot needed at this output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e25.19 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the HIVE Mini 9. Those are the 5 closest of 15; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9pkg-tw\"\u003e\u003ctable class=\"hhivemini9pkg-ladder hhivemini9pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eDROP 7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-9-sauna-heater-package\"\u003eCLIFF 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eDROP 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-9-sauna-heater-package\"\u003eSTEEL 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-core-9-sauna-heater-package\"\u003eCORE 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhivemini9pkg-on\"\u003e\n\u003ctd class=\"hhivemini9pkg-kw\"\u003eHIVE Mini 9 \u003cspan class=\"hhivemini9pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hhivemini9pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e10 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hhivemini9pkg-lead\"\u003eThe heater ships palletized by freight. The carrier calls to book a window, someone has to sign for it, and the handover is curbside rather than inside, so plan on two people to move it. The stone travels in its own boxes, 10 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Inspect the pallet before you sign, note any damage on the delivery paperwork, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhivemini9pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hhivemini9pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM HIVE Mini 9 package?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eThe HIVE Mini 9 heater, a HUUM UKU control in the panel finish you pick, and 10 boxes of HUUM olivine diabase stone, 331 lb (150 kg).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the HIVE Mini 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet at 240 volts, and 212 to 354 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the HIVE Mini 9 need?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eOne. HUUM's manual calls for a 50 amp breaker on 6 AWG cable, hardwired by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as 331 lb (150 kg), and stone comes in 33 pound boxes, so the package carries 10. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HIVE Mini 9 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE Mini 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hhivemini9pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhivemini9pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhivemini9pkg-c\"\u003e\n\u003cp class=\"hhivemini9pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE Mini 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hhivemini9pkg-who\"\u003e\n\u003cimg class=\"hhivemini9pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhivemini9pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhivemini9pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520473620847,"sku":"HUUM-PKG-HIVEMINI9-LB","price":4519.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520473653615,"sku":"HUUM-PKG-HIVEMINI9-LW","price":4832.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520473686383,"sku":"HUUM-PKG-HIVEMINI9-WB","price":4781.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520473719151,"sku":"HUUM-PKG-HIVEMINI9-WW","price":5094.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520473751919,"sku":"HUUM-PKG-HIVEMINI9-WG","price":5181.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520473784687,"sku":"HUUM-PKG-HIVEMINI9-WMR","price":5444.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, 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.hhive12pkg-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hhive12pkg .hhive12pkg-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hhive12pkg .hhive12pkg-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hhive12pkg .hhive12pkg-close p.hhive12pkg-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hhive12pkg .hhive12pkg-stat3 a{color:var(--bright)}.hhive12pkg .hhive12pkg-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hhive12pkg .hhive12pkg-cmp thead a .hhive12pkg-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hhive12pkg .hhive12pkg-ladder.hhive12pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hhive12pkg .hhive12pkg-ladder.hhive12pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hhive12pkg .hhive12pkg-tw + p,.hhive12pkg .hhive12pkg-tw + h3,.hhive12pkg .hhive12pkg-warn + p,.hhive12pkg .hhive12pkg-warn + h3,.hhive12pkg .hhive12pkg-more + p{margin-top:24px}.hhive12pkg .hhive12pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hhive12pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hhive12pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hhive12pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM HIVE 12 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the HIVE 12 with the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eUKU extension box\u003c\/a\u003e this output needs, a UKU control and the 16 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hhive12pkg-chk\"\u003e\n\u003cli\u003eThe HUUM HIVE 12 sauna heater, 12 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003eThe UKU extension box\u003c\/li\u003e\n\u003cli\u003e16 boxes of HUUM olivine diabase stone, 528 lb (240 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhive12pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hhive12pkg-big\"\u003e12 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 9 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhive12pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hhive12pkg-big\"\u003e424 to 636 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hhive12pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hhive12pkg-big\"\u003e16 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-vidrow\"\u003e\n\u003cdiv class=\"hhive12pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/cNupdGGmFlo\" title=\"Building it into the bench, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hhive12pkg-vidbody\"\u003e\n\u003ch2\u003eBuilding it into the bench\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eThe optional embedding flange, from bench cut-out to finished edge.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich HIVE package suits your room\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 3 of them.\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-tw\"\u003e\u003ctable class=\"hhive12pkg-ladder hhive12pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hhive12pkg-on\"\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003eHIVE 12 \u003cspan class=\"hhive12pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-15-sauna-heater-package\"\u003eHIVE 15\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-18-sauna-heater-package\"\u003eHIVE 18\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003e636 to 989 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 424 to 636 cubic feet on a 240 volt supply and 318 to 495 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003cp\u003eOne more thing comes with this output. The UKU main module carries a heater up to 11 kW by itself and this one is above that, so the package also carries the extension box that makes up the difference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the HIVE 12 is rated for\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-hive-12-electric-sauna-heater\"\u003eHIVE 12 heater\u003c\/a\u003e for 424 to 636 cubic feet at 240 volts. It stands on four adjustable legs, and it measures 22.06 in across and 29.53 in tall. HUUM gives its stone capacity as 528 lb (240 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 16 of them.\u003c\/p\u003e\n\u003cp\u003eA full size HIVE is the largest thing HUUM makes for an electric room, and it behaves differently from the smaller heaters: two supply circuits, the UKU extension box, and a stone load measured in sixteen boxes.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 9 kW and is rated for 318 to 495 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhive12pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-hive-12-studio_ddb64f22-9c77-4336-a77f-457d24fba233.jpg?width=1200\" alt=\"HUUM HIVE 12 sauna heater\" width=\"1144\" height=\"1144\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-warn\"\u003e\u003cp\u003e\u003cb\u003eThis output needs the UKU extension box.\u003c\/b\u003e The UKU main module carries heaters up to 11 kW on its own. The HIVE 12 is above that, so the package includes the \u003ca href=\"\/products\/huum-uku-extension-box\"\u003eextension box\u003c\/a\u003e as well. Only the HIVE 12, 15 and 18 need it; every other HUUM electric heater runs from the module alone.\u003c\/p\u003e\u003c\/div\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhive12pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_97ed38d9-3f18-4849-9cf8-63aadeb0b5cf.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e50 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eThe HIVE 12 draws 50 amps at 240 volts, and HUUM's manual calls for two circuits, 30 + 30 amps, on 10 + 10 AWG cable. Two supply circuits is a real cost to plan for, and it is the line item that surprises people.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 43.27 amps and two circuits of 30 + 30.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eHUUM gives the HIVE 12 a stone capacity of about 528 lb (240 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 16 of\nthem, which covers it.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hhive12pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_b7d52cb6-077a-4023-ae94-b67c5e4f2ab6.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hhive12pkg-tw\"\u003e\u003ctable class=\"hhive12pkg-spec\"\u003e\n\u003ccaption\u003eHUUM HIVE 12 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM HIVE 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e318 to 495 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e30 + 30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e10 + 10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e30 + 30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e10 + 10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e22.06 in across, 29.53 in tall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e48.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e4.72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e16 boxes, 528 lb (240 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor standing on four adjustable legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the HIVE 12. Those are the 5 closest of 10; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-tw\"\u003e\u003ctable class=\"hhive12pkg-ladder hhive12pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-core-11-sauna-heater-package\"\u003eCORE 11\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5 kW\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-11-sauna-heater-package\"\u003eHIVE Mini 11\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e10.6 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-11-sauna-heater-package\"\u003eCLIFF 11\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-11-sauna-heater-package\"\u003eSTEEL 11\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e11 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e354 to 566 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hhive12pkg-on\"\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003eHIVE 12 \u003cspan class=\"hhive12pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e424 to 636 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hhive12pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-15-sauna-heater-package\"\u003eHIVE 15\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003ctd\u003e16 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e530 to 813 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eOne caveat on the table. The HIVE 15 draws more than the UKU main module carries on its own, so that package also includes the UKU extension box and asks the electrician for two supply circuits rather than one.\u003c\/p\u003e\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hhive12pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e16 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003cli\u003eThe UKU extension box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hhive12pkg-lead\"\u003eThe heater ships palletized by freight. The carrier calls to book a window, someone has to sign for it, and the handover is curbside rather than inside, so plan on two people to move it. The stone travels in its own boxes, 16 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Inspect the pallet before you sign, note any damage on the delivery paperwork, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hhive12pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hhive12pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM HIVE 12 package?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eThe HIVE 12 heater, a HUUM UKU control in the panel finish you pick, and 16 boxes of HUUM olivine diabase stone, 528 lb (240 kg). It also includes the UKU extension box, which this output needs.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the HIVE 12 heat?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 424 to 636 cubic feet at 240 volts, and 318 to 495 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the HIVE 12 need?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eTwo. HUUM's manual calls for 30 + 30 amps on 10 + 10 AWG cable.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as 528 lb (240 kg), and stone comes in 33 pound boxes, so the package carries 16. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the HIVE 12 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the HIVE 12 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-hive-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hhive12pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hhive12pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hhive12pkg-c\"\u003e\n\u003cp class=\"hhive12pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the HIVE 12 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hhive12pkg-who\"\u003e\n\u003cimg class=\"hhive12pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hhive12pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hhive12pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520473882991,"sku":"HUUM-PKG-HIVE12-LB","price":5963.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520473915759,"sku":"HUUM-PKG-HIVE12-LW","price":6276.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520473948527,"sku":"HUUM-PKG-HIVE12-WB","price":6225.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520473981295,"sku":"HUUM-PKG-HIVE12-WW","price":6538.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520474014063,"sku":"HUUM-PKG-HIVE12-WG","price":6625.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520474046831,"sku":"HUUM-PKG-HIVE12-WMR","price":6888.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, 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!important;margin:0}.hdrop4pkg .hdrop4pkg-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop4pkg .hdrop4pkg-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop4pkg .hdrop4pkg-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop4pkg .hdrop4pkg-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop4pkg .hdrop4pkg-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop4pkg .hdrop4pkg-close p.hdrop4pkg-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop4pkg .hdrop4pkg-stat3 a{color:var(--bright)}.hdrop4pkg .hdrop4pkg-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop4pkg .hdrop4pkg-cmp thead a .hdrop4pkg-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop4pkg .hdrop4pkg-ladder.hdrop4pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop4pkg .hdrop4pkg-ladder.hdrop4pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop4pkg .hdrop4pkg-tw + p,.hdrop4pkg .hdrop4pkg-tw + h3,.hdrop4pkg .hdrop4pkg-warn + p,.hdrop4pkg .hdrop4pkg-warn + h3,.hdrop4pkg .hdrop4pkg-more + p{margin-top:24px}.hdrop4pkg .hdrop4pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hdrop4pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hdrop4pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop4pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM DROP 4 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the DROP 4 with a UKU control and the 4 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hdrop4pkg-chk\"\u003e\n\u003cli\u003eThe HUUM DROP 4 sauna heater, 4.5 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003e4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hdrop4pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop4pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hdrop4pkg-big\"\u003e4.5 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 3.4 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop4pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hdrop4pkg-big\"\u003e106 to 248 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop4pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hdrop4pkg-big\"\u003e4 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hdrop4pkg-vidrow\"\u003e\n\u003cdiv class=\"hdrop4pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hdrop4pkg-vidbody\"\u003e\n\u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich DROP package suits your room\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 4 of them.\u003c\/p\u003e\n\u003cdiv class=\"hdrop4pkg-tw\"\u003e\u003ctable class=\"hdrop4pkg-ladder hdrop4pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hdrop4pkg-on\"\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003eDROP 4 \u003cspan class=\"hdrop4pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003eDROP 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eDROP 7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eDROP 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 106 to 248 cubic feet on a 240 volt supply and 89 to 177 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the DROP 4 is rated for\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-drop-4-electric-sauna-heater\"\u003eDROP 4 heater\u003c\/a\u003e for 106 to 248 cubic feet at 240 volts. It hangs on its wall frame, so the floor stays clear, and it measures 15.4 in wide, 13.2 in deep and 23.2 in tall. HUUM gives its stone capacity as about 121.3 lb (55 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 4 of them and a little stone is left over.\u003c\/p\u003e\n\u003cp\u003eThe DROP is the only HUUM electric heater light enough to travel by parcel, and the only one that hangs with its stone in the open on a wall frame, so the bench plan and the floor stay clear.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 3.4 kW and is rated for 89 to 177 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop4pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-studio_ca60b58a-5875-4dc4-8a49-1be7f2ef0a1b.jpg?width=1200\" alt=\"HUUM DROP 4 sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop4pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_1310c5b3-eda7-46ef-9dad-4df1ab1127fa.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e18.75 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eThe DROP 4 draws 18.75 amps at 240 volts, and HUUM's manual calls for a 30 amp breaker on 10 AWG cable. It is hardwired, not plugged in.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 16.35 amps and 20 amps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eHUUM gives the DROP 4 a stone capacity of about 121.3 lb (55 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 4 of\nthem, which covers it with a little left over.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop4pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_8dc68523-569b-4458-8012-69bf8d9bd542.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop4pkg-tw\"\u003e\u003ctable class=\"hdrop4pkg-spec\"\u003e\n\u003ccaption\u003eHUUM DROP 4 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e3.4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e89 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e18.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.4 x 13.2 x 23.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e24.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e3.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e4 boxes, 121.3 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eNot needed at this output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e23.22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the DROP 4. Those are the 5 closest of 7; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hdrop4pkg-tw\"\u003e\u003ctable class=\"hdrop4pkg-ladder hdrop4pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-mini-4-sauna-heater-package\"\u003eCLIFF Mini 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-mini-4-sauna-heater-package\"\u003eSTEEL Mini 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop4pkg-on\"\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003eDROP 4 \u003cspan class=\"hdrop4pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-6-sauna-heater-package\"\u003eCLIFF 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003eDROP 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop4pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-6-sauna-heater-package\"\u003eHIVE Mini 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hdrop4pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e4 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hdrop4pkg-lead\"\u003eThe heater travels by ground parcel, light enough that there is no appointment, no liftgate and no curbside handover to arrange. The stone travels in its own boxes, 4 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Open the cartons the day they arrive and check the contents, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop4pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop4pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM DROP 4 package?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eThe DROP 4 heater, a HUUM UKU control in the panel finish you pick, and 4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the DROP 4 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 106 to 248 cubic feet at 240 volts, and 89 to 177 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the DROP 4 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eOne. HUUM's manual calls for a 30 amp breaker on 10 AWG cable, hardwired by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as about 121.3 lb (55 kg), and stone comes in 33 pound boxes, so the package carries 4. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the DROP 4 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 4 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop4pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop4pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop4pkg-c\"\u003e\n\u003cp class=\"hdrop4pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 4 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hdrop4pkg-who\"\u003e\n\u003cimg class=\"hdrop4pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop4pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop4pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520479158639,"sku":"HUUM-PKG-DROP4-LB","price":2716.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520479191407,"sku":"HUUM-PKG-DROP4-LW","price":3029.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520479224175,"sku":"HUUM-PKG-DROP4-WB","price":2978.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520479256943,"sku":"HUUM-PKG-DROP4-WW","price":3291.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520479289711,"sku":"HUUM-PKG-DROP4-WG","price":3378.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520479322479,"sku":"HUUM-PKG-DROP4-WMR","price":3641.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, gold","offer_id":53520479355247,"sku":"HUUM-PKG-DROP4-WGD","price":3641.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-4-sauna-heater-package-black-control.jpg?v=1790665584"},{"product_id":"huum-drop-7-sauna-heater-package","title":"HUUM DROP 7 Sauna Heater Package, 7.5 kW | UKU Control and Stones","description":"\u003cstyle\u003e.hdrop7pkg{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop7pkg *{box-sizing:border-box}.hdrop7pkg .hdrop7pkg-c img{margin:0 !important;border:0}.hdrop7pkg 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!important;margin:0}.hdrop7pkg .hdrop7pkg-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop7pkg .hdrop7pkg-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop7pkg .hdrop7pkg-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop7pkg .hdrop7pkg-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop7pkg .hdrop7pkg-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop7pkg .hdrop7pkg-close p.hdrop7pkg-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop7pkg .hdrop7pkg-stat3 a{color:var(--bright)}.hdrop7pkg .hdrop7pkg-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop7pkg .hdrop7pkg-cmp thead a .hdrop7pkg-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop7pkg .hdrop7pkg-ladder.hdrop7pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop7pkg .hdrop7pkg-ladder.hdrop7pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop7pkg .hdrop7pkg-tw + p,.hdrop7pkg .hdrop7pkg-tw + h3,.hdrop7pkg .hdrop7pkg-warn + p,.hdrop7pkg .hdrop7pkg-warn + h3,.hdrop7pkg .hdrop7pkg-more + p{margin-top:24px}.hdrop7pkg .hdrop7pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hdrop7pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hdrop7pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop7pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM DROP 7 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the DROP 7 with a UKU control and the 4 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hdrop7pkg-chk\"\u003e\n\u003cli\u003eThe HUUM DROP 7 sauna heater, 7.5 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003e4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hdrop7pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop7pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hdrop7pkg-big\"\u003e7.5 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 5.6 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop7pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hdrop7pkg-big\"\u003e248 to 389 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop7pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hdrop7pkg-big\"\u003e4 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hdrop7pkg-vidrow\"\u003e\n\u003cdiv class=\"hdrop7pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hdrop7pkg-vidbody\"\u003e\n\u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich DROP package suits your room\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 4 of them.\u003c\/p\u003e\n\u003cdiv class=\"hdrop7pkg-tw\"\u003e\u003ctable class=\"hdrop7pkg-ladder hdrop7pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-4-sauna-heater-package\"\u003eDROP 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003eDROP 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop7pkg-on\"\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003eDROP 7 \u003cspan class=\"hdrop7pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eDROP 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 248 to 389 cubic feet on a 240 volt supply and 177 to 301 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the DROP 7 is rated for\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-drop-7-electric-sauna-heater\"\u003eDROP 7 heater\u003c\/a\u003e for 248 to 389 cubic feet at 240 volts. It hangs on its wall frame, so the floor stays clear, and it measures 15.4 in wide, 13.2 in deep and 23.2 in tall. HUUM gives its stone capacity as about 121.3 lb (55 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 4 of them and a little stone is left over.\u003c\/p\u003e\n\u003cp\u003eThe DROP is the only HUUM electric heater light enough to travel by parcel, and the only one that hangs with its stone in the open on a wall frame, so the bench plan and the floor stay clear.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 5.6 kW and is rated for 177 to 301 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop7pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-studio_649c5f0e-10e2-4377-909d-ba24318f35b7.jpg?width=1200\" alt=\"HUUM DROP 7 sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop7pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_686ca606-1ffe-4cbe-997f-15b164b329a7.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e31.25 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eThe DROP 7 draws 31.25 amps at 240 volts, and HUUM's manual calls for a 40 amp breaker on 8 AWG cable. It is hardwired, not plugged in.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 26.92 amps and 30 amps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eHUUM gives the DROP 7 a stone capacity of about 121.3 lb (55 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 4 of\nthem, which covers it with a little left over.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop7pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_c37e7337-cd6a-4ee7-b5b0-0e5b10cd0003.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop7pkg-tw\"\u003e\u003ctable class=\"hdrop7pkg-spec\"\u003e\n\u003ccaption\u003eHUUM DROP 7 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e5.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e177 to 301 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e31.25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.4 x 13.2 x 23.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e26.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e5.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e4 boxes, 121.3 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eNot needed at this output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e26.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the DROP 7. Those are the 5 closest of 14; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hdrop7pkg-tw\"\u003e\u003ctable class=\"hdrop7pkg-ladder hdrop7pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hdrop7pkg-on\"\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003eDROP 7 \u003cspan class=\"hdrop7pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-9-sauna-heater-package\"\u003eCLIFF 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-9-sauna-heater-package\"\u003eDROP 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-9-sauna-heater-package\"\u003eHIVE Mini 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-9-sauna-heater-package\"\u003eSTEEL 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop7pkg-kw\"\u003e\u003ca href=\"\/products\/huum-core-9-sauna-heater-package\"\u003eCORE 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hdrop7pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e4 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hdrop7pkg-lead\"\u003eThe heater travels by ground parcel, light enough that there is no appointment, no liftgate and no curbside handover to arrange. The stone travels in its own boxes, 4 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Open the cartons the day they arrive and check the contents, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop7pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop7pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM DROP 7 package?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eThe DROP 7 heater, a HUUM UKU control in the panel finish you pick, and 4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the DROP 7 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 248 to 389 cubic feet at 240 volts, and 177 to 301 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the DROP 7 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eOne. HUUM's manual calls for a 40 amp breaker on 8 AWG cable, hardwired by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as about 121.3 lb (55 kg), and stone comes in 33 pound boxes, so the package carries 4. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the DROP 7 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 7 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop7pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop7pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop7pkg-c\"\u003e\n\u003cp class=\"hdrop7pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 7 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hdrop7pkg-who\"\u003e\n\u003cimg class=\"hdrop7pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop7pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop7pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520479420783,"sku":"HUUM-PKG-DROP7-LB","price":3054.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520479453551,"sku":"HUUM-PKG-DROP7-LW","price":3367.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520479486319,"sku":"HUUM-PKG-DROP7-WB","price":3316.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520479519087,"sku":"HUUM-PKG-DROP7-WW","price":3629.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520479551855,"sku":"HUUM-PKG-DROP7-WG","price":3716.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520479584623,"sku":"HUUM-PKG-DROP7-WMR","price":3979.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, gold","offer_id":53520479617391,"sku":"HUUM-PKG-DROP7-WGD","price":3979.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-7-sauna-heater-package-black-control.jpg?v=1790665623"},{"product_id":"huum-drop-9-sauna-heater-package","title":"HUUM DROP 9 Sauna Heater Package, 9 kW | UKU Control and Stones","description":"\u003cstyle\u003e.hdrop9pkg{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hdrop9pkg *{box-sizing:border-box}.hdrop9pkg .hdrop9pkg-c img{margin:0 !important;border:0}.hdrop9pkg 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!important;margin:0}.hdrop9pkg .hdrop9pkg-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hdrop9pkg .hdrop9pkg-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hdrop9pkg .hdrop9pkg-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hdrop9pkg .hdrop9pkg-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hdrop9pkg .hdrop9pkg-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hdrop9pkg .hdrop9pkg-close p.hdrop9pkg-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hdrop9pkg .hdrop9pkg-stat3 a{color:var(--bright)}.hdrop9pkg .hdrop9pkg-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hdrop9pkg .hdrop9pkg-cmp thead a .hdrop9pkg-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hdrop9pkg .hdrop9pkg-ladder.hdrop9pkg-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hdrop9pkg .hdrop9pkg-ladder.hdrop9pkg-out td:last-child::before{content:\"Output:\\00a0\"}}.hdrop9pkg .hdrop9pkg-tw + p,.hdrop9pkg .hdrop9pkg-tw + h3,.hdrop9pkg .hdrop9pkg-warn + p,.hdrop9pkg .hdrop9pkg-warn + h3,.hdrop9pkg .hdrop9pkg-more + p{margin-top:24px}.hdrop9pkg .hdrop9pkg-vid iframe{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark)}\u003c\/style\u003e\n\u003cdiv class=\"hdrop9pkg\"\u003e\n\u003csection id=\"overview\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eThe whole order\u003c\/p\u003e\n\u003cdetails class=\"hdrop9pkg-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hdrop9pkg-ct\"\u003e13 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#video\"\u003eVideo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fit\"\u003eWill it fit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heater\"\u003eThe heater\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#control\"\u003eThe control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#electrical\"\u003eBreaker and wire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#stones\"\u003eStone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compare\"\u003eHow it compares\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#crate\"\u003eWhat you get\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#delivery\"\u003eDelivery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n\u003ch2\u003eHUUM DROP 9 Sauna Heater Package\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eA HUUM heater carton holds the heater and its fixings. No control, no stone. This package is the DROP 9 with a UKU control and the 4 boxes of stone HUUM's manual asks for, so nothing is missing when the electrician arrives.\u003c\/p\u003e\n\u003cul class=\"hdrop9pkg-chk\"\u003e\n\u003cli\u003eThe HUUM DROP 9 sauna heater, 9 kW\u003c\/li\u003e\n\u003cli\u003eA HUUM UKU control, in the panel finish you pick above\u003c\/li\u003e\n\u003cli\u003e4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe package price is the component prices added together, at the manufacturer's own advertised prices. Nothing is added for bundling them, and there is no inflated compare at price. Buy the parts separately from us and you pay the same.\u003c\/p\u003e\n\u003cdiv class=\"hdrop9pkg-stat3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop9pkg-lbl\"\u003eOutput at 240 volts\u003c\/p\u003e\n\u003cp class=\"hdrop9pkg-big\"\u003e9 kW\u003c\/p\u003e\n\u003cp\u003eHUUM's rating on a 240 volt supply. On 208 volts the same heater makes 6.75 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop9pkg-lbl\"\u003eRoom it is rated for\u003c\/p\u003e\n\u003cp class=\"hdrop9pkg-big\"\u003e283 to 460 cu. ft.\u003c\/p\u003e\n\u003cp\u003eLength times width times height, with 3.3 cubic feet added for every square foot of uninsulated brick, tile or glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"hdrop9pkg-lbl\"\u003eStone included\u003c\/p\u003e\n\u003cp class=\"hdrop9pkg-big\"\u003e4 boxes\u003c\/p\u003e\n\u003cp\u003eHUUM olivine diabase in 33 pound boxes, covering the capacity HUUM publishes for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"video\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eWatch\u003c\/p\u003e\n\u003cdiv class=\"hdrop9pkg-vidrow\"\u003e\n\u003cdiv class=\"hdrop9pkg-vid\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/K4BQgwESR4c\" title=\"The heat diverter, fitted, HUUM\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"hdrop9pkg-vidbody\"\u003e\n\u003ch2\u003eThe heat diverter, fitted\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eEvery DROP 2.0 ships with the heat diverter. This is how it bolts to the reflector.\u003c\/p\u003e\n\u003cp\u003eHUUM filmed this one itself. Its heater installation films are made for Europe and show European wiring, so we do not use them; the sauna side of the job is the same, but the electrical side is not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"fit\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eSizing\u003c\/p\u003e\n\u003ch2\u003eWhich DROP package suits your room\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eEvery package in this series carries the same seven control choices and the same\ngrade of stone. What separates them is output and the room each one is rated for. The stone load is the same across the series, so a bigger package is more heat rather than more mass. There are 4 of them.\u003c\/p\u003e\n\u003cdiv class=\"hdrop9pkg-tw\"\u003e\u003ctable class=\"hdrop9pkg-ladder hdrop9pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eRated room at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-4-sauna-heater-package\"\u003eDROP 4\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-6-sauna-heater-package\"\u003eDROP 6\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e177 to 318 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eDROP 7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop9pkg-on\"\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003eDROP 9 \u003cspan class=\"hdrop9pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eMeasure the room first\u003c\/h3\u003e\n\u003cp\u003eOutput follows the volume of the room rather than its floor, so work in cubic feet: length times\nwidth times height, all in feet. Uninsulated brick, tile or glass pulls heat out of a room faster\nthan a timber wall does, and HUUM's manual answers that by counting an extra 3.3 cubic feet for\nevery square foot of such wall. HUUM does not say whether a glass door counts, so counting it is\nthe cautious choice. If the number lands between two packages, our\n\u003ca href=\"\/pages\/find-your-sauna-heater\"\u003eheater finder\u003c\/a\u003e walks the room with you, or call and we\nwill do it together.\u003c\/p\u003e\n\u003ch3\u003eWhat moves when you change size\u003c\/h3\u003e\n\u003cp\u003eOutput moves with the size and so does the circuit, which is the part people budget late. This\npackage is rated for 283 to 460 cubic feet on a 240 volt supply and 212 to 354 on 208 volts,\nand the breaker and cable HUUM calls for at both voltages are in the specifications below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"heater\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eThe heater\u003c\/p\u003e\n\u003ch2\u003eWhat the DROP 9 is rated for\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eHUUM rates the \u003ca href=\"\/products\/huum-drop-9-electric-sauna-heater\"\u003eDROP 9 heater\u003c\/a\u003e for 283 to 460 cubic feet at 240 volts. It hangs on its wall frame, so the floor stays clear, and it measures 15.4 in wide, 13.2 in deep and 23.2 in tall. HUUM gives its stone capacity as about 121.3 lb (55 kg), and \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eits olivine diabase stone\u003c\/a\u003e comes in 33 pound boxes, so this package carries 4 of them and a little stone is left over.\u003c\/p\u003e\n\u003cp\u003eThe DROP is the only HUUM electric heater light enough to travel by parcel, and the only one that hangs with its stone in the open on a wall frame, so the bench plan and the floor stay clear.\u003c\/p\u003e\n\u003cp\u003eOn a 208 volt supply the same heater makes 6.75 kW and is rated for 212 to 354 cubic feet.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-studio_ab789e8b-9cac-4c45-a767-fa215be238bb.jpg?width=1200\" alt=\"HUUM DROP 9 sauna heater\" width=\"2048\" height=\"2048\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe heater in the package, before the stone goes in.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"control\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eThe control\u003c\/p\u003e\n\u003ch2\u003eWhich UKU comes in the package\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003ePick the control at the top of this page and the price moves with it. Every choice is a HUUM UKU: the same control, in a different panel.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e runs the heater from the wall panel. The \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e adds the phone app, so the room can be hot when you get home. Local comes in black or thermo-ash wood. Wi-Fi adds black glass, mirror and gold.\u003c\/p\u003e\n\u003cp\u003eThe control unit itself mounts outside the hot room, and the panel goes on the wall where you want it. HUUM's manual sets the cable runs, and the cables it needs are in the box.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-control-panels-and-app_dc39df09-be5e-4dfa-94c3-529164268360.jpg?width=1200\" alt=\"HUUM UKU control panels and app, the control included in this package\" width=\"2000\" height=\"1559\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eThe UKU panel finishes, and the app the Wi-Fi control adds.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"electrical\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eThe circuit\u003c\/p\u003e\n\u003ch2\u003e37.5 amps at 240 volts\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eThe DROP 9 draws 37.5 amps at 240 volts, and HUUM's manual calls for a 50 amp breaker on 8 AWG cable. It is hardwired, not plugged in.\u003c\/p\u003e\n\u003cp\u003eA sauna heater is a continuous load, so the National Electrical Code can call for a larger breaker and heavier conductors than the manual's figure, and local amendments differ. Your licensed electrician sizes the circuit and pulls the permit. On this model HUUM's breaker figure is below what the Code's continuous-load rule gives for its rated current, so your electrician and inspector decide the breaker and cable, and they may be larger than HUUM's figure.\u003c\/p\u003e\n\u003ch3\u003eWhy this page quotes two voltages\u003c\/h3\u003e\n\u003cp\u003eThere is nothing to pick here, and nothing on this page selects it. Almost every US home is supplied at 240 volts, while many commercial buildings and some apartment blocks are supplied at 208. It is the same heater and the same part number either way: on 208 volts it draws less and makes less heat, so HUUM publishes a separate output and a smaller room range for it, and the specifications below list both. Your electrician reads the panel and tells you which row applies. At 208 volts HUUM gives 32.44 amps and 40 amps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"stones\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eStone\u003c\/p\u003e\n\u003ch2\u003eThe stone is already in the order\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eHUUM gives the DROP 9 a stone capacity of about 121.3 lb (55 kg). Its\n\u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eolivine diabase\u003c\/a\u003e is sold in 33 pound boxes, so this package carries 4 of\nthem, which covers it with a little left over.\u003c\/p\u003e\n\u003ch3\u003eWhy the grade is on the label\u003c\/h3\u003e\n\u003cp\u003eThis heater takes stone 2 to 4 inches (5 to 10 cm) across, which is the range HUUM's manual publishes for it. The\nsize matters because the same manual asks for the stones to be laid loosely enough for air to move\nbetween them, and for the heating elements not to show once the bed is filled. HUUM prints a\nwarning that a too sparsely filled stone container is a fire hazard, so the bed has to be both\nfull and open, and stone outside the published range makes that harder to get right.\u003c\/p\u003e\n\u003ch3\u003eHow the stone travels\u003c\/h3\u003e\n\u003cp\u003eStone is heavy and it is the line most quotes get wrong. In this package it goes on the same\norder as the heater and carries no shipping charge to the contiguous 48 states; ordered on its own\nit is charged per box. That is the difference worth checking if you are weighing the package\nagainst the parts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cdiv class=\"hdrop9pkg-fig\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine_eb67c44f-f019-4c4b-9a62-2a1de5182677_e850d66d-aef0-4dab-ab57-727e904dbe6a.jpg?width=1200\" alt=\"HUUM olivine diabase sauna stones, included in the package\" width=\"2048\" height=\"1365\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cfigcaption\u003eHUUM olivine diabase, the stone counted into this package.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"specs\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2\u003eWhat is in this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop9pkg-tw\"\u003e\u003ctable class=\"hdrop9pkg-spec\"\u003e\n\u003ccaption\u003eHUUM DROP 9 package reference\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003eHUUM DROP 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 240 V\u003c\/th\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput at 208 V\u003c\/th\u003e\n\u003ctd\u003e6.75 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom at 208 V\u003c\/th\u003e\n\u003ctd\u003e212 to 354 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent at 240 V\u003c\/th\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 240 V\u003c\/th\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 240 V\u003c\/th\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaker at 208 V\u003c\/th\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable at 208 V\u003c\/th\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater size\u003c\/th\u003e\n\u003ctd\u003e15.4 x 13.2 x 23.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater weight, empty\u003c\/th\u003e\n\u003ctd\u003e26.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to the side wall\u003c\/th\u003e\n\u003ctd\u003e5.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum gap above\u003c\/th\u003e\n\u003ctd\u003e47.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone in the package\u003c\/th\u003e\n\u003ctd\u003e4 boxes, 121.3 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl in the package\u003c\/th\u003e\n\u003ctd\u003eHUUM UKU, panel finish as selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExtension box\u003c\/th\u003e\n\u003ctd\u003eNot needed at this output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall mounted on the supplied frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall to wall across the heater\u003c\/th\u003e\n\u003ctd\u003e27.16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eEvery figure is HUUM's own, from the current US manual for this heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"compare\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eThe alternatives\u003c\/p\u003e\n\u003ch2\u003eOther HUUM packages that cover a similar room\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eA room of this size does not tie you to one heater. These HUUM packages have a rated range that overlaps the DROP 9. Those are the 5 closest of 15; the rest are in our \u003ca href=\"\/collections\/sauna-heater-packages\"\u003esauna heater packages\u003c\/a\u003e collection. Overlapping is not the same as interchangeable: check your own cubic feet against each range before you switch, because HUUM ties the warranty to matching the heater to the room.\u003c\/p\u003e\n\u003cdiv class=\"hdrop9pkg-tw\"\u003e\u003ctable class=\"hdrop9pkg-ladder hdrop9pkg-rooms\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eOutput at 240 V\u003c\/th\u003e\n\u003cth\u003eStone included\u003c\/th\u003e\n\u003cth\u003eWhere it sits\u003c\/th\u003e\n\u003cth\u003eRated room\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-drop-7-sauna-heater-package\"\u003eDROP 7\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e248 to 389 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-cliff-9-sauna-heater-package\"\u003eCLIFF 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e5 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-hive-mini-9-sauna-heater-package\"\u003eHIVE Mini 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-steel-9-sauna-heater-package\"\u003eSTEEL 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e10 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003e\u003ca href=\"\/products\/huum-core-9-sauna-heater-package\"\u003eCORE 9\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e3 boxes\u003c\/td\u003e\n\u003ctd\u003eFloor standing\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hdrop9pkg-on\"\u003e\n\u003ctd class=\"hdrop9pkg-kw\"\u003eDROP 9 \u003cspan class=\"hdrop9pkg-tag\"\u003eThis package\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e9 kW\u003c\/td\u003e\n\u003ctd\u003e4 boxes\u003c\/td\u003e\n\u003ctd\u003eWall mounted\u003c\/td\u003e\n\u003ctd\u003e283 to 460 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eReading the stone column\u003c\/h3\u003e\n\u003cp\u003eTwo heaters of the same output can carry very different stone loads, and HUUM describes its large stone loads as the source of a gentle, long lasting steam. Neither way is better. Where there is a real tie breaker it is usually the last thing on the list, whether the heater hangs on the wall or stands on the floor, which is the Where it sits column.\u003c\/p\u003e\n\u003cp\u003eThe outputs, room ranges and mounting are HUUM's own figures from the current US manual for each\nheater. The box counts are ours, worked from the stone weight HUUM publishes and its 33 pound box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"crate\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eWhat you get\u003c\/p\u003e\n\u003ch2\u003eWhat arrives, and in how many boxes\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eA package is three separate cartons rather than one, because the heater, the control and the stone are packed by HUUM as separate lines.\u003c\/p\u003e\n\u003cul class=\"hdrop9pkg-chk\"\u003e\n\u003cli\u003eThe heater, in HUUM's own carton with its fixings and manual\u003c\/li\u003e\n\u003cli\u003eThe UKU control, panel and module, in a separate carton\u003c\/li\u003e\n\u003cli\u003e4 boxes of stone at 33 pounds each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing else is needed to fire it once the electrician has made the connection. The rail, the drip tray and the embedding flange HUUM lists for this heater are optional and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"delivery\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eDelivery\u003c\/p\u003e\n\u003ch2\u003eHow the package arrives\u003c\/h2\u003e\n\u003cp class=\"hdrop9pkg-lead\"\u003eThe heater travels by ground parcel, light enough that there is no appointment, no liftgate and no curbside handover to arrange. The stone travels in its own boxes, 4 of them at 33 pounds each, and the control comes in its own carton. They can arrive on different days.\u003c\/p\u003e\n\u003cp\u003eShipping is free to the contiguous 48 states. We do not ship HUUM to Alaska, Hawaii or Puerto Rico. Buying the stone inside a package is what keeps it free; ordered on its own it is charged per box.\u003c\/p\u003e\n\u003cp\u003eLead time runs about 7 to 14 days from order. Open the cartons the day they arrive and check the contents, and tell us within 48 hours of delivery if anything is damaged, with photographs, so we can file the claim. Full terms are on our \u003ca href=\"\/pages\/huum-shipping-policy\"\u003eHUUM shipping policy\u003c\/a\u003e, with the \u003ca href=\"\/pages\/huum-warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/huum-return-policy\"\u003ereturns\u003c\/a\u003e pages alongside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hdrop9pkg-tinted\" id=\"faq\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\"\u003eQuestions\u003c\/p\u003e\n\u003ch2\u003eQuestions buyers ask about this package\u003c\/h2\u003e\n\u003cdiv class=\"hdrop9pkg-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is in the HUUM DROP 9 package?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eThe DROP 9 heater, a HUUM UKU control in the panel finish you pick, and 4 boxes of HUUM olivine diabase stone, 121.3 lb (55 kg).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the package cost more than buying the parts on their own?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eNo. The price is the component prices added together at the manufacturer's advertised prices, with nothing added for bundling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat size room does the DROP 9 heat?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eHUUM rates it for 283 to 460 cubic feet at 240 volts, and 212 to 354 cubic feet at 208 volts. Add 3.3 cubic feet for every square foot of uninsulated brick, tile or glass in the room.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I choose a different control?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eYes. The package includes a UKU because that is the control HUUM was certified with, and you choose the panel above. HUUM's manual allows any certified sauna control panel, so if you already own one, buy the heater on its own instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many circuits does the DROP 9 need?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eOne. HUUM's manual calls for a 50 amp breaker on 8 AWG cable, hardwired by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the stone included, and is it enough?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eYes. HUUM gives the stone capacity as about 121.3 lb (55 kg), and stone comes in 33 pound boxes, so the package carries 4. Fill the heater as the manual shows: a sparsely filled stone bed is a fire hazard, and the heater must not be switched on until it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eThe heater is hardwired, so a licensed electrician makes the connection. Doing it yourself puts the warranty at risk and usually fails inspection.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the DROP 9 listed for use in the United States?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eIt is listed by SGS, not by UL. SGS North America is on OSHA's list of nationally recognized testing laboratories, and it lists the DROP 9 for the United States and Canada under certificate SGSNA\/20\/SUW\/00067X, to UL 60335-1, CAN\/CSA C22.2 No. 60335-1, CAN\/CSA E60335-2-53 and IEC 60335-2-53. The listing applies on the conditions SGS records against it: the heater is used with sauna stones, run from an approved sauna heater controller (the listing was evaluated with the UKU), supplied by conductors rated to at least 90 degrees C, and carries the warning tag on the bottom rung of the frame. On the 9 kW DROP the certificate also requires the heat deflector to be fitted, and it is in the carton. Inspectors differ on what they ask to see for a sauna heater, so check with yours before you buy. We can send you the certificate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat warranty comes with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eHUUM's heater warranty runs 3 years in a private sauna and 1 year in commercial use. Heating elements are excluded, which is why we stock them as \u003ca href=\"\/products\/huum-drop-heating-element\"\u003eservice parts\u003c\/a\u003e, and we file any claim for you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the stone ship free with the package?\u003c\/summary\u003e\u003cdiv class=\"hdrop9pkg-fb\"\u003e\u003cp\u003eYes, to the contiguous 48 states. Inside a package the stone carries no shipping charge; ordered on its own it is charged per box. We do not ship HUUM to Alaska, Hawaii or Puerto Rico.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hdrop9pkg-close\" id=\"order\"\u003e\n\u003cdiv class=\"hdrop9pkg-c\"\u003e\n\u003cp class=\"hdrop9pkg-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n\u003ch2\u003eNot sure the DROP 9 is the right output?\u003c\/h2\u003e\n\u003cp\u003eTell us the room size and how the walls are built, and we will size it with you before you order. This package carries the heater, the UKU control and the stone in one price, so the only decision left is the output, and we would rather talk you down a size than sell you the bigger one.\u003c\/p\u003e\n\u003cdiv class=\"hdrop9pkg-who\"\u003e\n\u003cimg class=\"hdrop9pkg-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Chaddy, sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\" loading=\"lazy\"\u003e\n\u003cp\u003e\u003cb\u003eChaddy\u003c\/b\u003e\u003cspan\u003eSauna specialist, Recovery Room Direct\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"hdrop9pkg-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n\u003ca class=\"hdrop9pkg-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local, black","offer_id":53520479912303,"sku":"HUUM-PKG-DROP9-LB","price":3133.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local, thermo-ash wood","offer_id":53520479945071,"sku":"HUUM-PKG-DROP9-LW","price":3446.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black","offer_id":53520479977839,"sku":"HUUM-PKG-DROP9-WB","price":3395.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, thermo-ash wood","offer_id":53520480010607,"sku":"HUUM-PKG-DROP9-WW","price":3708.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, black glass","offer_id":53520480043375,"sku":"HUUM-PKG-DROP9-WG","price":3795.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, mirror","offer_id":53520480076143,"sku":"HUUM-PKG-DROP9-WMR","price":4058.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wi-Fi, gold","offer_id":53520480108911,"sku":"HUUM-PKG-DROP9-WGD","price":4058.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-drop-9-sauna-heater-package-black-control.jpg?v=1790665644"}],"url":"https:\/\/recoveryroomdirect.com\/collections\/huum\/sauna-accessories.oembed","provider":"Recovery Room Direct","version":"1.0","type":"link"}