HUUM STEEL Electric Sauna Heater 10.5 kW

Price:

$2,520.00

The HUUM Steel is an advanced, upscaled version of the popular HUUM Steel Mini, designed for superior performance in medium-sized saunas. Available in 6 kW, 9 kW, and 10.5 kW models, it combines modern design, powerful heating, and exceptional efficiency — ideal for those who value both function and aesthetics.

With its impressive stone capacity of 150 kg (331 lbs) — equivalent to 10 boxes of HUUM stones — the Steel heater ensures consistent, long-lasting heat and abundant steam production. Its slim and rectangular profile allows installation in tighter spaces while maintaining HUUM’s signature elegant look, making it a perfect fit for both residential and commercial saunas.

Efficient Heating with Air Tunnel Technology

A standout feature of the HUUM Steel is its integrated air tunnel system, which fully shields the heating elements and promotes optimal airflow.
This innovation:

  • Reduces heating time,

  • Improves energy efficiency, and

  • Extends the heater’s lifespan.

This advanced system is shared only with the HUUM Cliff model, making both heaters the most technically refined in the HUUM lineup.

Performance and Control

The Steel heater supports Wi-Fi compatibility through the UKU sauna control system, enabling convenient remote control of your sauna’s temperature and schedule.
Like all HUUM heaters, it reaches up to 110°C, maintaining a smooth, even heat and creating an authentic, gentle steam atmosphere with every pour of water over the stones.

What’s Included

  • Adjustable legs (can raise the heater up to 7 cm)

What You’ll Need

  • UKU sauna control system

  • 150 kg (331 lbs) of sauna stones (diameter: 3–5 cm / 1.2–2 in)

Specifications

  • Sauna room size: 10–16 m³ (354–566 ft³)

  • Stone capacity: 150 kg (331 lb)

  • Weight: 16 kg (35.3 lb)

  • Height: 975 mm (38.4 in)

  • Width: 320 mm (12.6 in)

  • Depth: 320 mm (12.6 in)

  • Maximum temperature: 110°C

  • Safety distances: Refer to the Drawing tab below

Disclaimer: Sauna Depot is not responsible for any electrical work. Installation must be completed by a licensed electrician in accordance with local electrical codes and the manufacturer’s installation manual.

Build Price
  • Choose heater control

    The local and Wi-Fi sauna controls are essentially the same in terms of hardware and functionality. The key difference is that the Wi-Fi version includes an ID for connecting to the HUUM mobile app (Apple or Google Play). This feature allows you to remotely activate your sauna, enabling you to heat it up in advance, whether you're on your way home or just finishing a workout. It's designed to enhance convenience, ensuring your sauna is ready when you are.

    UKU Local Control

    UKU Wi-Fi Control

    Choose stones
    Choose Safety Railing
    Hive Reflector

    Depending on the required clearance of the heater, it may be necessary to use two Hive reflectors.

    Choose Embedding Flange

    Depending on the required clearance of the heater, it may be necessary to use two Hive reflectors.

    Choose Protective Bedding

    Depending on the required clearance of the heater, it may be necessary to use two Hive reflectors.

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