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HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM

HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)

Sale price$2,224.00
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HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW)
HUUM STEEL 9 — Slim Electric Sauna Heater (9.0kW) Sale price$2,224.00
Specifications
Specification Value
Brand HUUM
Model STEEL 9.0
Part Number H1006022
Kilowatt Rating (kW) 9.0 kW
Primary Fuel Electric
Minimum Adjusted Cubic Feet 283 CF
Maximum Adjusted Cubic Feet 460 CF
Heater Weight 33 lbs
Shipping Weight w/ Stones 364 lbs
Voltage / Phase 240V, Single Phase
Amperage 37.5 Amps
Width 12.6" (320 mm)
Depth 12.6" (320 mm)
Height 38.4" (975 mm)
Stone Capacity 331 lbs — Requires 10 Boxes
Safety Distance Reduced clearances due to optimized airflow
Construction Stainless Steel
Heating Elements Industrial-Grade Stainless Steel
Heater Type Floor Model
Certifications European Safety Compliant
Country of Origin Estonia
Warranty 3-Year Residential / 1-Year Commercial (Excl. Elements)
Description

The HUUM STEEL 9.0kW Sauna Heater delivers powerful, efficient performance in a slim, space-saving design — perfect for smaller sauna rooms where every inch counts. Engineered for sauna spaces between 283 and 460 cubic feet, the STEEL 9 combines high heat output with exceptionally compact safety distances, making it one of the most versatile electric heaters on the market.

Built with HUUM’s advanced internal air duct system, the STEEL 9 warms the sauna up to 25% faster than comparable heaters, while maintaining smooth, gentle steam thanks to its large 331-pound stone capacity. This direct stone-to-heating-element design allows for enhanced heat storage and a milder, longer-lasting löyly.

Compatible with HUUM’s full range of UKU Control Systems, the STEEL 9 offers precise temperature control, scheduling, and safety features — with Wi-Fi options for remote app-based operation. Crafted in Estonia from premium stainless steel, this heater blends modern engineering with minimalist Nordic design.

Features

  • Slim Space-Efficient Design: Ideal for compact sauna layouts

  • Reduced Safety Distances: Only 2–4 inches required due to optimized internal structure

  • Fast Heat-Up Time: Internal air duct increases heating speed by up to 25%

  • 331-Lb Stone Capacity: Produces mild, deep, long-lasting steam

  • Direct Contact Heating: Stones sit directly on heating elements for better heat transfer

  • Works with HUUM UKU Controls: Local, Wi-Fi, Glass, Mirror, Gold (sold separately)

  • Premium Stainless Steel Build: Stylish, durable, and corrosion resistant

  • Industrial-Grade Elements: Long-lasting heating performance

  • Modern Floor-Standing Design: Fits cleanly into corner or wall-adjacent installations

  • Crafted in Estonia: Authentic European sauna engineering

What’s Included

  • HUUM STEEL 9.0kW Sauna Heater

  • Installation & Operation Manual

  • 3-Year Residential Warranty

  • 1-Year Commercial Warranty (Excluding Elements)

Required for Operation (Sold Separately)

  • HUUM UKU Control System — Required to operate the heater

    • UKU Local

    • UKU Wi-Fi

    • UKU Glass

    • UKU Mirror

    • UKU Gold

  • HUUM UKU Extension Box — Required if paired with specific control configurations

  • HUUM Stones 12 (10 Boxes Required) — Rounded 1"–2" olivine stones for heat retention and steam output

Documentation

Manual Links:

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Specifications
Specification Value
Brand HUUM
Model STEEL 9.0
Part Number H1006022
Kilowatt Rating (kW) 9.0 kW
Primary Fuel Electric
Minimum Adjusted Cubic Feet 283 CF
Maximum Adjusted Cubic Feet 460 CF
Heater Weight 33 lbs
Shipping Weight w/ Stones 364 lbs
Voltage / Phase 240V, Single Phase
Amperage 37.5 Amps
Width 12.6" (320 mm)
Depth 12.6" (320 mm)
Height 38.4" (975 mm)
Stone Capacity 331 lbs — Requires 10 Boxes
Safety Distance Reduced clearances due to optimized airflow
Construction Stainless Steel
Heating Elements Industrial-Grade Stainless Steel
Heater Type Floor Model
Certifications European Safety Compliant
Country of Origin Estonia
Warranty 3-Year Residential / 1-Year Commercial (Excl. Elements)
Description

The HUUM STEEL 9.0kW Sauna Heater delivers powerful, efficient performance in a slim, space-saving design — perfect for smaller sauna rooms where every inch counts. Engineered for sauna spaces between 283 and 460 cubic feet, the STEEL 9 combines high heat output with exceptionally compact safety distances, making it one of the most versatile electric heaters on the market.

Built with HUUM’s advanced internal air duct system, the STEEL 9 warms the sauna up to 25% faster than comparable heaters, while maintaining smooth, gentle steam thanks to its large 331-pound stone capacity. This direct stone-to-heating-element design allows for enhanced heat storage and a milder, longer-lasting löyly.

Compatible with HUUM’s full range of UKU Control Systems, the STEEL 9 offers precise temperature control, scheduling, and safety features — with Wi-Fi options for remote app-based operation. Crafted in Estonia from premium stainless steel, this heater blends modern engineering with minimalist Nordic design.

Features

  • Slim Space-Efficient Design: Ideal for compact sauna layouts

  • Reduced Safety Distances: Only 2–4 inches required due to optimized internal structure

  • Fast Heat-Up Time: Internal air duct increases heating speed by up to 25%

  • 331-Lb Stone Capacity: Produces mild, deep, long-lasting steam

  • Direct Contact Heating: Stones sit directly on heating elements for better heat transfer

  • Works with HUUM UKU Controls: Local, Wi-Fi, Glass, Mirror, Gold (sold separately)

  • Premium Stainless Steel Build: Stylish, durable, and corrosion resistant

  • Industrial-Grade Elements: Long-lasting heating performance

  • Modern Floor-Standing Design: Fits cleanly into corner or wall-adjacent installations

  • Crafted in Estonia: Authentic European sauna engineering

What’s Included

  • HUUM STEEL 9.0kW Sauna Heater

  • Installation & Operation Manual

  • 3-Year Residential Warranty

  • 1-Year Commercial Warranty (Excluding Elements)

Required for Operation (Sold Separately)

  • HUUM UKU Control System — Required to operate the heater

    • UKU Local

    • UKU Wi-Fi

    • UKU Glass

    • UKU Mirror

    • UKU Gold

  • HUUM UKU Extension Box — Required if paired with specific control configurations

  • HUUM Stones 12 (10 Boxes Required) — Rounded 1"–2" olivine stones for heat retention and steam output

Documentation

Manual Links: