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CORE BK/ST | Sauna Heater With UKU Controller + Stones | By Huum

CORE BK/ST | Sauna Heater With UKU Controller + Stones | By Huum

Regular price $3,399.97 USD
Regular price Sale price $3,399.97 USD
Sale Sold out
Shipping calculated at checkout.
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HUUM CORE BK/ST ยท "Naked" Custom-Finish Sauna Heater ยท Tile ยท Stone ยท Glass ยท Wood ยท 6.5โ€“10.5 kW ยท Bench-Embed ยท 3-Year Warranty ยท Made In Estonia

"Naked" Exterior โ€” Your Finish Ceramic Tile ยท Stone ยท Glass ยท Wood Industrial Stainless Steel Core 6.5 kW ยท 9 kW ยท 10.5 kW Options 177โ€“566 cu ft Room Range 66 lbs Stone Capacity Minimal Safety Distances Bench-Embed Capable 240V / 1PH ๐ŸŽ›๏ธ UKU Controls Compatible ๐Ÿ›ก๏ธ 3-Year Residential ยท 1-Year Commercial ๐Ÿ‡ช๐Ÿ‡ช Designed & Made In Estonia

The HUUM CORE BK/ST is the customisation variant of the HUUM CORE โ€” the same industrial-quality Estonian electric heater, but with a "naked" exterior that ships as a blank canvas for you to finish with ceramic tiles, stone, glass, or wood. Same 66 lbs stone capacity, same 6.5 / 9 / 10.5 kW range for rooms from 177 to 566 cubic feet, same compact footprint with minimal safety distances and bench-embed capability. CORE performance โ€” your exterior expression.

The same CORE inside. Your finish outside. Tile it, stone it, glass it, wood it โ€” the BK/ST disappears into any sauna you can imagine. ๐ŸŒฟ

๐ŸŽจ
"Naked" Exterior โ€” The BK/ST's Defining Feature
The CORE BK/ST ships without an exterior finish โ€” intentionally. The structural frame is designed as a blank canvas compatible with ceramic tiles, stone, glass, or wood applied by the installer. For a custom-built sauna where every surface has been specified, the BK/ST allows the heater to match that specification rather than interrupt it.
๐ŸŽจ
Exterior
Custom Finish
๐Ÿชจ
Stone Capacity
66 lbs
๐Ÿ“
Room Range
177โ€“566 cu ft
๐Ÿ›ก๏ธ
Warranty
3 Yr Res ยท 1 Yr Com

Finish Options โ€” Your Canvas

๐ŸŸซ
Ceramic Tile
๐Ÿชจ
Stone
๐Ÿ”ฒ
Glass
๐ŸŒฒ
Wood

HUUM CORE Range โ€” Choose Your Variant

Also Available
CORE Alder
Same CORE with pre-fitted Alder wood panels โ€” ready to install, no exterior work required
โœ… This Model
CORE BK/ST
Naked exterior โ€” finish with tile, stone, glass, or wood to match your custom sauna interior
Custom Finish

Three Power Options โ€” 177 to 566 cu ft

๐Ÿ”ต
Entry
6.5 kW
Compact rooms ยท Efficient output for smaller sauna spaces
๐ŸŸก
Mid-Range
9 kW
Most versatile ยท Wide mid-range room coverage
๐Ÿ”ด
Maximum
10.5 kW
Largest rooms ยท Maximum CORE output up to 566 cu ft

๐ŸŽจ "Naked" exterior โ€” tile, stone, glass, or wood โ€” ships as a blank canvas for custom finishing. For a custom-built sauna where every surface has been specified, the BK/ST allows the heater to match that specification rather than interrupt it.
๐Ÿ—๏ธ Industrial-quality stainless steel โ€” direct stone contact โ€” beneath any finish, the CORE BK/ST is built from industrial-quality stainless steel with direct stone-to-element contact. Faster stone heating, longer heat retention, consistent intense heat and powerful steam throughout every session.
๐Ÿ“ฆ Compact 12.2" ร— 12.2" ร— 32.7" โ€” minimal safety distances โ€” bench-embed capable โ€” installs in tight corners, against walls, or directly embedded into bench seating. With a custom tile or stone finish applied, the heater becomes part of the bench architecture โ€” completely integrated.
๐Ÿชจ 66 lbs stone capacity โ€” powerful steam โ€” ladle water onto 66 lbs of heated stones for thick, sustained steam throughout the session. Authentic Nordic sauna experience without heat drop-off.
๐ŸŽ›๏ธ UKU controls required โ€” sold separately โ€” the CORE BK/ST requires the HUUM UKU Control system (sold separately). Contact us to add UKU controls to your order.
๐Ÿ‡ช๐Ÿ‡ช Designed and made in Estonia โ€” 3-year residential / 1-year commercial warranty โ€” dual warranty coverage reflecting HUUM's confidence in the CORE for both home and professional wellness installations.
Brand / Model HUUM โ€” CORE BK/ST
Manufacturing Designed & made in Estonia
Exterior "Naked" โ€” custom finish: tile, stone, glass, or wood
Core Construction Industrial-quality stainless steel
Power Options 6.5 kW ยท 9 kW ยท 10.5 kW
Voltage 240V / 1PH
Room Capacity 177โ€“566 cubic feet
Stone Capacity 66 lbs โ€” direct element contact
Dimensions 12.2" W ร— 12.2" D ร— 32.7" H
Safety Distances Minimal โ€” bench-embed compatible
Controls UKU required โ€” sold separately
Warranty 3-year residential ยท 1-year commercial (elements excluded)
๐Ÿ›ก๏ธ 3-Year Residential / 1-Year Commercial Warranty
Elements excluded from coverage. View full warranty terms in the Warranty PDF in the Manuals tab. Contact us for warranty queries.
HUUM CORE โ€” User Manual View PDF
HUUM CORE โ€” Sauna Sizing Guide View PDF
HUUM CORE โ€” Warranty Document View PDF
HUUM CORE โ€” Stone Requirements View PDF
HUUM CORE โ€” Element Requirements View PDF

๐Ÿšš Packed and shipped within 1โ€“3 business days. Delivered within 5โ€“10 business days. Shipping costs calculated at checkout.

Use the Sauna Sizing Guide in the Manuals tab to select the right kW. UKU controls required and sold separately โ€” contact us to add them to your order. The naked frame ships ready for your chosen finish to be applied by your installer.

๐ŸŽจ Custom Finish โ€” Tile ยท Stone ยท Glass ยท Wood ยท ๐Ÿชจ 66 lbs Stones ยท โšก 6.5โ€“10.5 kW ยท ๐Ÿ“ฆ Bench-Embed ยท ๐Ÿ›ก๏ธ 3-Yr Residential ยท ๐Ÿ‡ช๐Ÿ‡ช Made In Estonia

HUUM CORE BK/ST โ€” The Same CORE. Your Finish. ๐Ÿ”ฅ

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