{"product_id":"huum-steel-mini-3-5stu-pkg-steel-mini-series-3-5kw-sauna-heater-package","title":"HUUM STEEL Mini 3.5STU Pkg STEEL Mini Series 3.5kW Sauna Heater Package","description":"\u003c!-- HUUM STEEL Mini 3.5STU Package - 3.5kW Wall-Mounted Compact Sauna Heater --\u003e\u003c!-- Wall-mounted | 240V\/1PH | 106-177 cu ft | Complete - control + 133 lbs stones included --\u003e\u003c!-- SKU: 534-BDL-STEELM35STULB | STEEL Mini Series | UKU Local Black or UKU WiFi at checkout --\u003e\u003c!-- Wall-mounted (unlike STEEL 6\/9\/10.5 which are floor-standing) | 2.5\" safety clearance --\u003e\u003c!-- Single 20A breaker \/ 12 AWG | 133 lbs (4 boxes) 2-4\" rounded olivine | No ext box required --\u003e\u003c!-- 5-year warranty (elements excluded) | SGS Listed | Made in Estonia --\u003e\u003c!-- 8 document sections: STEEL IOM | STEEL Elements Required | UKU Installation and Operation Manual (singular) | UKU Diagram | UKU Video | Extension Installation Manual | Warranty | Stone Requirements --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 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}\n    .sl-divider { margin: 1.25rem 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"sl\"\u003e\n\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0C2Nz-_r2pQ?si=LtMMIpS0N172V-ma\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/h2\u003e\n\u003ch2\u003eHUUM STEEL Mini 3.5STU Pkg STEEL Mini Series 3.5kW Sauna Heater Package\u003c\/h2\u003e\n\u003cp\u003eThe HUUM STEEL Mini 3.5STU Package is a complete sauna heater package for small sauna rooms from 106 to 177 cubic feet, including the STEEL Mini 3.5kW heater, UKU sauna control (Local Black or WiFi - selected at checkout), and 133 lbs of rounded olivine diabase sauna stones. The STEEL Mini is the wall-mounted member of the STEEL family - an important distinction from the floor-standing STEEL 6, 9, and 10.5kW models. While the full STEEL series stands on the sauna floor on adjustable legs, the STEEL Mini mounts on the sauna wall with a bracket, taking no floor space at all. At 3.5kW on a standard 20A \/ 12 AWG circuit, it is designed specifically for the smallest sauna rooms - personal home saunas, single-bench rooms, compact barrel saunas, and tight custom builds where a 30A or 50A circuit is impractical and floor space is the limiting constraint.\u003c\/p\u003e\n\u003ch4\u003eWall-mounted - the STEEL aesthetic in a compact wall-bracket format\u003c\/h4\u003e\n\u003cp\u003eThe STEEL Mini brings the slender stainless steel profile and minimal safety clearance engineering of the STEEL family to a wall-mounted format suited for rooms from 106 to 177 cubic feet. Like the full STEEL models, the STEEL Mini has a slim rectangular brushed stainless steel profile, an integrated internal air duct for 25% faster heat-up, and direct stone-to-element contact for efficient heat transfer. The safety clearance from surrounding walls is 2.5\" (5 cm) - even tighter than the STEEL 6's 2\" clearance for a floor-standing unit, making the STEEL Mini one of the most space-efficient wall-mounted electric sauna heaters available at this output level. In a 106-177 cu ft sauna room where every inch of bench and floor space matters, the wall-mounted installation keeps the floor completely clear for the bather.\u003c\/p\u003e\n\u003ch4\u003e133 lbs of stone on a 20A circuit - generous stone mass for a small room heater\u003c\/h4\u003e\n\u003cp\u003eDespite its compact wall-mounted form for small rooms, the STEEL Mini carries 133 lbs of rounded olivine diabase stones - substantially more than a standard wall-mounted heater in this output class. For comparison, the HUUM DROP 4.5kW (the closest DROP model for this room range) carries 122 lbs on a 30A \/ 10 AWG circuit; the STEEL Mini carries 133 lbs on a lighter 20A \/ 12 AWG circuit. The additional stone mass, combined with direct stone-to-element contact, produces softer and longer-lasting steam from a heater that runs on a standard 20A circuit - the lightest electrical requirement of any HUUM heater. For new sauna installations in homes where panel capacity is limited, the STEEL Mini's 20A requirement makes it the most electrically accessible floor-heating HUUM option.\u003c\/p\u003e\n\u003ch4\u003e20A \/ 12 AWG - the lightest electrical requirement in the HUUM range\u003c\/h4\u003e\n\u003cp\u003eThe STEEL Mini 3.5kW requires a single 20A two-pole breaker and 12 AWG wire - lighter than any other HUUM heater in the range. The DROP 4.5kW and 6kW, the HIVE Mini 6kW, and the STEEL 6kW all require a minimum 30A circuit; the STEEL Mini is the one HUUM heater that can run on a 20A circuit, making it the correct choice when panel capacity is the binding constraint for a small sauna room. A licensed electrician is required for all connections. Do not connect to a GFI\/GFCI breaker. No UKU Extension Box is required for the 3.5kW output level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003eComplete 3.5kW wall-mounted sauna heater package for small rooms from 106 to 177 cubic feet. Includes STEEL Mini 3.5kW heater, UKU control (Local Black or WiFi - select at checkout), and 133 lbs of rounded olivine diabase stones (4 boxes). Wall-mounted - no floor space used. Slender brushed stainless steel profile. 2.5\" safety clearance from walls. 133 lbs stone capacity - generous for a small-room wall-mounted heater. Direct stone-to-element contact. Integrated air duct - 25% faster heat-up. No UKU Extension Box required. Single 20A breaker, 12 AWG wire - lightest electrical requirement in the HUUM range. 240V \/ 1-phase. Max 230°F. SGS Listed. 5-year warranty (elements excluded). Made in Estonia by HUUM.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003eComplete package - control + 133 lbs stones included\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e3.5 kW\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e106 to 177 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eWall-mounted - no floor space used\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSlender brushed stainless steel profile\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e2.5\" safety clearance from walls\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e133 lb stone capacity - 4 boxes included\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eDirect stone-to-element contact\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eIntegrated air duct - 25% faster heat-up\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eNo UKU Extension Box required\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUKU Local Black or UKU WiFi - select at checkout\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSingle 20A breaker - 12 AWG - 240V 1-phase\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eLightest electrical requirement in HUUM range\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSGS Listed - made in Estonia\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e5-year warranty (elements excluded)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"sl-spec-grid\"\u003e\n\u003cdiv class=\"sl-spec-tables\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e3.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e240V \/ 1-phase \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage draw\u003c\/td\u003e\n\u003ctd\u003e14.58 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit breaker required\u003c\/td\u003e\n\u003ctd\u003eSingle 20A (standard 2-pole - no GFI\/GFCI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Extension Box required\u003c\/td\u003e\n\u003ctd\u003eNo - not required for 3.5kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eSGS Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eRoom sizing and stones\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom volume\u003c\/td\u003e\n\u003ctd\u003e106 to 177 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e133 lbs (4 boxes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones included\u003c\/td\u003e\n\u003ctd\u003eYes - 4 boxes rounded olivine diabase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone size\u003c\/td\u003e\n\u003ctd\u003e2\" to 4\" (5-10 cm) rounded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax temperature\u003c\/td\u003e\n\u003ctd\u003e230°F (110°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003ePhysical and clearances\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eSlim rectangular stainless steel - wall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety clearance from walls\u003c\/td\u003e\n\u003ctd\u003e2.5\" (5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall-mounted with bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir duct\u003c\/td\u003e\n\u003ctd\u003eIntegrated internal - 25% faster heat-up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone contact\u003c\/td\u003e\n\u003ctd\u003eDirect stone-to-element contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eBrushed stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in Estonia by HUUM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-image\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eControl options - select at checkout\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Local Black\u003c\/td\u003e\n\u003ctd\u003eWall-mounted digital control - on-site operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU WiFi\u003c\/td\u003e\n\u003ctd\u003eAdds HUUM app remote preheat and scheduling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp\u003c\/td\u003e\n\u003ctd\u003eHUUM app - iOS and Android (WiFi variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Extension Box\u003c\/td\u003e\n\u003ctd\u003eNot required for 3.5kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eSTEEL Mini vs STEEL 6 - key differences\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSTEEL Mini 3.5kW (this listing)\u003c\/td\u003e\n\u003ctd\u003eWall-mounted | 106-177 cu ft | 20A \/ 12 AWG | 133 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSTEEL 6kW\u003c\/td\u003e\n\u003ctd\u003eFloor-standing | 177-318 cu ft | 30A \/ 10 AWG | 330 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting type\u003c\/td\u003e\n\u003ctd\u003eWall bracket vs adjustable floor legs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit\u003c\/td\u003e\n\u003ctd\u003e20A (Mini) vs 30A (STEEL 6) - lightest in HUUM range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty period\u003c\/td\u003e\n\u003ctd\u003e5 years (elements excluded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eSlim brushed stainless steel - wall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"sl-inc-grid\"\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eHUUM STEEL Mini 3.5kW wall-mounted sauna heater - brushed stainless steel\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eUKU sauna control (Local Black or WiFi - selected at checkout)\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eRounded olivine diabase sauna stones - 4 boxes (133 lbs)\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eWall-mount bracket and hardware\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 1rem; font-weight: 500; color: #64748b; font-size: 14px;\"\u003e\u003cstrong\u003eOptional accessories (sold separately):\u003c\/strong\u003e HUUM STEEL Mini safety railing (recommended), reflector panels (reduce wall clearances further). A licensed electrician is required for all electrical connections.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the HUUM STEEL Mini 3.5STU Package stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eWall-mounted - zero floor space\u003c\/div\u003e\n\u003cp\u003eThe STEEL Mini mounts on the sauna wall with a bracket, keeping the entire floor area free for the bather. In small sauna rooms from 106-177 cu ft - a single-bench personal sauna or compact two-person room - every square foot of floor and bench space matters. The wall-mounted installation eliminates the heater footprint from the floor entirely, which is not possible with any floor-standing HUUM model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e2.5\" from the wall - smallest clearance in the STEEL series\u003c\/div\u003e\n\u003cp\u003eThe STEEL Mini requires only 2.5\" (5 cm) safety clearance from surrounding walls - the smallest wall clearance of any HUUM heater. In compact sauna rooms where the distance from the ideal heater position to the nearest wall or bench is severely constrained, the STEEL Mini can be positioned where no other heater can fit without violating safety distances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e20A \/ 12 AWG - lightest electrical requirement in the HUUM range\u003c\/div\u003e\n\u003cp\u003eThe STEEL Mini 3.5kW requires a 20A two-pole breaker and 12 AWG wire - lighter than every other HUUM heater. The DROP 4.5, DROP 6, HIVE Mini 6, and STEEL 6 all require at minimum 30A \/ 10 AWG. For small sauna rooms in homes where the panel has limited capacity, the STEEL Mini's 20A requirement is the most electrically accessible path to a complete HUUM installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e133 lbs of stone - generous for a small-room wall-mounted heater\u003c\/div\u003e\n\u003cp\u003eDespite its compact wall-mounted format for rooms as small as 106 cu ft, the STEEL Mini carries 133 lbs of rounded olivine diabase stones - more than the 122 lbs in the DROP 4.5kW on a heavier 30A circuit. Direct stone-to-element contact ensures efficient heat transfer through the full stone load, producing soft, consistent steam when water is ladled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eIntegrated air duct - 25% faster heat-up\u003c\/div\u003e\n\u003cp\u003eThe integrated internal air duct reduces heat-up time by approximately 25% and extends element life by directing airflow efficiently through the stone mass. For a 106-177 cu ft room at 3.5kW, the shorter heat-up time means less waiting between switch-on and bathing temperature - a meaningful quality-of-life improvement for regular sauna users.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eUKU WiFi - remote preheat for a compact sauna\u003c\/div\u003e\n\u003cp\u003eUpgrading to UKU WiFi at checkout adds HUUM app control on iOS and Android - remote preheat from anywhere, session scheduling, and temperature monitoring. A 106-177 cu ft room at 3.5kW heats up in 15-25 minutes; the WiFi option allows starting the preheat from anywhere so the sauna is ready when the bather arrives. No extension box required for the WiFi upgrade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eAbout HUUM\u003c\/h3\u003e\n\u003cdiv class=\"sl-brand1\"\u003e\n\u003cimg alt=\"HUUM STEEL Mini 3.5kW wall-mounted sauna heater package with UKU control and 133 lbs olivine stones - slim stainless bracket mount\" src=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-11\/SteelMiniPKG1_0.jpg\" class=\"sl-brand-img\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Estonia - SGS Listed\u003c\/span\u003e\n\u003ch4\u003eHUUM STEEL Mini 3.5STU. 3.5kW. 106-177 cu ft. Wall-mounted. 133 lbs of stone. 20A circuit.\u003c\/h4\u003e\n\u003cp\u003eHUUM is an Estonian sauna heater company. The STEEL Mini is the wall-mounted entry point of the STEEL series - the same slim stainless steel profile and minimal clearance engineering as the floor-standing STEEL models, in a compact wall-bracket format for rooms from 106 to 177 cubic feet on a 20A \/ 12 AWG circuit. The STEEL Mini 3.5STU Package includes the heater, the UKU control (Local Black or WiFi at checkout), and 4 boxes of rounded olivine diabase stones (133 lbs). No UKU Extension Box required. No floor space used. 2.5\" from the wall. We are an authorized HUUM dealer.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete package\u003c\/strong\u003e - STEEL Mini 3.5kW, UKU control, and 133 lbs rounded olivine stones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5kW, 106-177 cu ft\u003c\/strong\u003e - single 20A \/ 12 AWG, 240V\/1PH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall-mounted\u003c\/strong\u003e - zero floor space, 2.5\" from walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightest electrical requirement\u003c\/strong\u003e in the HUUM range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo UKU Extension Box required\u003c\/strong\u003e - 5-year warranty (elements excluded)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-brand2\" style=\"text-align: start;\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eSTEEL Mini vs STEEL 6 vs DROP 4.5 - choosing for small rooms\u003c\/span\u003e\n\u003ch4\u003eSmall sauna room options - STEEL Mini 3.5, DROP 4.5, and STEEL 6\u003c\/h4\u003e\n\u003cp\u003eFor sauna rooms from 106-177 cu ft, the STEEL Mini 3.5kW is the specific HUUM choice: wall-mounted, 20A circuit, 133 lbs stones, 2.5\" clearance. For rooms from 106-248 cu ft where a 30A circuit is available and wall-mounted is preferred, the DROP 4.5kW offers 122 lbs stones in a water-droplet form. For rooms from 177-318 cu ft where floor-standing is preferred and 30A is available, the STEEL 6kW floor-standing offers 330 lbs stones in the same stainless tower aesthetic as the STEEL Mini. The STEEL Mini is the correct choice specifically when the room is 177 cu ft or smaller, a 20A circuit is preferred or required, and a wall-mounted installation is wanted - no other HUUM heater satisfies all three simultaneously. A licensed electrician is required. No GFI\/GFCI. STEEL Mini safety railing recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg alt=\"HUUM STEEL Mini 3.5kW wall-mounted in small sauna showing slim stainless profile with zero floor footprint\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/huum_uku1_1_28d85d78-f4c9-4671-a5cc-3ba0ce923a07.jpg?v=1779377905\u0026amp;width=800\" class=\"sl-brand-img\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eManuals and Documents\u003c\/h3\u003e\n\u003cdiv class=\"sl-manual\"\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eSTEEL Installation and Operation Manual\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-11\/HUUM-STEEL-Sauna-Heater-IOM.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e STEEL Installation and Operation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eSTEEL Elements Required\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-03\/HUUM%20Elements%20Required.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e STEEL Elements Required (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eUKU Installation and Operation Manual\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/HUUM-UKU-Control-IOM.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e UKU Installation and Operation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eUKU Installation Diagram\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-05\/HUUM-UKU-Installation-Diagram.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e UKU Installation Diagram (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eExtension Installation Manual\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-01\/Extension-Box-Installation.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Extension Installation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eWarranty\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/HUUM-Warranty.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Warranty Information (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eStone Requirements\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/-HUUM-Stone-Requirements.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Stone Requirements (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cdiv class=\"sl-warranty\"\u003e\n\u003ch5\u003e5-year limited warranty (elements excluded)\u003c\/h5\u003e\n\u003cp\u003eThe HUUM STEEL Mini 3.5STU Package is covered by HUUM's \u003cstrong\u003e5-year limited warranty\u003c\/strong\u003e from the date of purchase. The warranty covers defects in manufacturing and materials under normal use conditions. Heating elements are excluded from the 5-year coverage and carry their own separate warranty period. The warranty does not cover damage caused by improper installation, use of incorrect or non-approved stones, operating the heater without the required stone load, or failure to follow HUUM's installation and operating guidelines. A licensed electrician is required for all electrical connections. Do not connect to a GFI\/GFCI breaker. Proof of purchase from an authorized HUUM dealer is required. We are an authorized HUUM dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local Black","offer_id":52269962756378,"sku":"534-BDL-STEELM35STULB","price":2958.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local w\/Wood Case","offer_id":52269962789146,"sku":"534-BDL-STEELM35STULB+WD","price":3063.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local w\/White Case","offer_id":52269962821914,"sku":"534-BDL-STEELM35STULB+WH","price":2974.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Black","offer_id":52269962854682,"sku":"534-BDL-STEELM35STUWB","price":3220.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi w\/Wood Case","offer_id":52269962887450,"sku":"534-BDL-STEELM35STUWB+WD","price":3481.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi w\/White Case","offer_id":52269962920218,"sku":"534-BDL-STEELM35STUWB+WH","price":3392.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Gold","offer_id":52269962952986,"sku":"534-BDL-STEELM35STUWGD","price":3395.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Glass","offer_id":52269962985754,"sku":"534-BDL-STEELM35STUWG","price":3620.0,"currency_code":"USD","in_stock":true},{"title":"UKU WIfi Mirror","offer_id":52269963018522,"sku":"534-BDL-STEELM35STUWMR","price":3883.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/SteelMiniPKG1_0.jpg?v=1779508652","url":"https:\/\/mediriser.com\/products\/huum-steel-mini-3-5stu-pkg-steel-mini-series-3-5kw-sauna-heater-package","provider":"Mediriser","version":"1.0","type":"link"}