1-914-825-5990
The HUUM Steel is a slim, space-efficient electric sauna heater with remarkably small safety clearances — making it the ideal choice for compact sauna rooms where a full-size heater would overwhelm the space. Available in 6kW, 9kW, and 10.5kW for sauna rooms from 176 to 600 cubic feet.
Despite its slim profile, the Steel punches well above its weight. A massive 330 lb stone capacity delivers soft, consistent, long-lasting steam — significantly more than most wall-mounted heaters — while an internal air duct system accelerates heat-up times by up to 25%, getting your sauna to temperature faster and more efficiently. Its minimalist stainless steel design makes it a refined focal point in any modern sauna environment, not just a technical appliance.
This complete ready-to-install package includes the HUUM UKU Wi-Fi controller and sauna stones — everything needed for immediate setup. The UKU app lets you control temperature, set schedules, adjust lighting, and preheat your sauna from anywhere via smartphone. Maximum temperature of 230°F for an intense, authentic sauna experience.
Professional electrical installation required. 240V.
Key Features
• Sauna Room Size: 176–600 cu. ft.
• Design: Slim, minimalist profile for limited spaces
• Installation: Floor-mounted, free-standing
• Voltage / Phase: 240V / 1PH
• Temperature Range: 122–230°F
• Heat-Up Time: Approximately 20–30 minutes
• Stone Capacity: 331 lbs for steady, even heat
• Steam Capability: Water can be poured on stones
• Construction: Stainless steel
• Control: Wi-Fi enabled, mobile app compatible
• Scheduling: Programmable weekly schedule
• Origin: Made in Estonia
Specifications
All STEEL Models
• Voltage / Phase: 240V / 1PH
• Dimensions: 12.6"W × 12.6"D × 38.4"H
• Stone Capacity: 331 lbs
• Min / Max Temperature: 104°F / 230°F
STEEL 6 kW
• Installation: Free-standing
• Sauna Room Size: 177–318 cu. ft.
• Amperage: 25 A
• Heater Weight: 33 lbs
STEEL 9 kW
• Installation: Free-standing
• Sauna Room Size: 283–460 cu. ft.
• Amperage: 37.5 A
• Heater Weight: 33 lbs
STEEL 10.5 kW
• Installation: Free-standing
• Sauna Room Size: 354–566 cu. ft.
• Amperage: 43.75 A
• Heater Weight: 35 lbs
Included
• HUUM STEEL Electric Sauna Heater
• HUUM UKU Wi-Fi Black Sauna Controller
• UKU Control Panel
• Main Wi-Fi Module
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable (9.84 ft, 22AWG)
• Temperature Sensor Cable (16.4 ft, 24AWG)
• Door Sensor Cable (16.4 ft, 24AWG)
• 331 lbs 1–2" Rounded Olivine Sauna Stones
• Installation & Operation Manual
Description
The HUUM Steel is a slim, space-efficient electric sauna heater with remarkably small safety clearances — making it the ideal choice for compact sauna rooms where a full-size heater would overwhelm the space. Available in 6kW, 9kW, and 10.5kW for sauna rooms from 176 to 600 cubic feet.
Despite its slim profile, the Steel punches well above its weight. A massive 330 lb stone capacity delivers soft, consistent, long-lasting steam — significantly more than most wall-mounted heaters — while an internal air duct system accelerates heat-up times by up to 25%, getting your sauna to temperature faster and more efficiently. Its minimalist stainless steel design makes it a refined focal point in any modern sauna environment, not just a technical appliance.
This complete ready-to-install package includes the HUUM UKU Wi-Fi controller and sauna stones — everything needed for immediate setup. The UKU app lets you control temperature, set schedules, adjust lighting, and preheat your sauna from anywhere via smartphone. Maximum temperature of 230°F for an intense, authentic sauna experience.
Professional electrical installation required. 240V.
Key Features
• Sauna Room Size: 176–600 cu. ft.
• Design: Slim, minimalist profile for limited spaces
• Installation: Floor-mounted, free-standing
• Voltage / Phase: 240V / 1PH
• Temperature Range: 122–230°F
• Heat-Up Time: Approximately 20–30 minutes
• Stone Capacity: 331 lbs for steady, even heat
• Steam Capability: Water can be poured on stones
• Construction: Stainless steel
• Control: Wi-Fi enabled, mobile app compatible
• Scheduling: Programmable weekly schedule
• Origin: Made in Estonia
Specifications
All STEEL Models
• Voltage / Phase: 240V / 1PH
• Dimensions: 12.6"W × 12.6"D × 38.4"H
• Stone Capacity: 331 lbs
• Min / Max Temperature: 104°F / 230°F
STEEL 6 kW
• Installation: Free-standing
• Sauna Room Size: 177–318 cu. ft.
• Amperage: 25 A
• Heater Weight: 33 lbs
STEEL 9 kW
• Installation: Free-standing
• Sauna Room Size: 283–460 cu. ft.
• Amperage: 37.5 A
• Heater Weight: 33 lbs
STEEL 10.5 kW
• Installation: Free-standing
• Sauna Room Size: 354–566 cu. ft.
• Amperage: 43.75 A
• Heater Weight: 35 lbs
Included
• HUUM STEEL Electric Sauna Heater
• HUUM UKU Wi-Fi Black Sauna Controller
• UKU Control Panel
• Main Wi-Fi Module
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable (9.84 ft, 22AWG)
• Temperature Sensor Cable (16.4 ft, 24AWG)
• Door Sensor Cable (16.4 ft, 24AWG)
• 331 lbs 1–2" Rounded Olivine Sauna Stones
• Installation & Operation Manual
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