{"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 *{box-sizing:border-box}.hst24 .hst24-c img{margin:0 !important;border:0}.hst24 .hst24-c{max-width:1000px;margin:0 auto;padding:0 20px}.hst24 section{padding:52px 0}.hst24 section:first-of-type{padding-top:26px}.hst24 section.hst24-tinted{background:var(--tint)}.hst24 section + section.hst24-tinted,.hst24 section.hst24-tinted + section{border-top:1px solid var(--warm)}.hst24 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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  \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 how many boxes your heater takes?\u003c\/h2\u003e\n    \u003cp\u003eTell us the heater model and we will confirm the stone size and the number of boxes before you order.\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=\"Sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\"\u003e\n      \u003cp\u003e\u003cb\u003eRecovery Room Direct\u003c\/b\u003e\u003cspan\u003eSauna specialists\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","url":"https:\/\/recoveryroomdirect.com\/products\/huum-sauna-stones-5-10-cm","provider":"Recovery Room Direct","version":"1.0","type":"link"}