{"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 UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hcore9 *{box-sizing:border-box}.hcore9 .hcore9-c img{margin:0 !important;border:0}.hcore9 .hcore9-c{max-width:1000px;margin:0 auto;padding:0 20px}.hcore9 section{padding:52px 0}.hcore9 section:first-of-type{padding-top:26px}.hcore9 section.hcore9-tinted{background:var(--tint)}.hcore9 section + section.hcore9-tinted,.hcore9 section.hcore9-tinted + section{border-top:1px solid var(--warm)}.hcore9 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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. 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\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\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 on 4 adjustable legs, 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  \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  \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-c\"\u003e\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\u003eGet the heater, the control and the stone right\u003c\/h2\u003e\n    \u003cp\u003eTell us the room dimensions and how the walls are built and we will walk you through the manual's own figures for output, circuit, clearances and stone before you order, and your electrician confirms the circuit. If the room is borderline we will say so rather than sell you the bigger heater.\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=\"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=\"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\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","url":"https:\/\/recoveryroomdirect.com\/products\/huum-core-9-electric-sauna-heater","provider":"Recovery Room Direct","version":"1.0","type":"link"}