HUUM STEEL Electric Sauna Heater 6 kW

Price:

$2,140.00

The HUUM Steel is the larger, more powerful evolution of the popular Steel Mini model, engineered to deliver exceptional performance in medium-sized saunas. Available in 6 kW, 9 kW, and 10.5 kW capacities, this heater embodies HUUM’s signature craftsmanship — combining sleek, minimalist design with high thermal efficiency and generous stone capacity.

Capable of holding up to 10 boxes of stones (approximately 150 kg / 330 lb), the HUUM Steel ensures consistent, long-lasting heat and luxurious steam production. Its slim, rectangular design and minimal safety distance requirements make it a perfect choice for saunas where space is limited, while its clean, contemporary lines complement any modern interior.

A key feature that sets the HUUM Steel apart is its integrated air tunnel system — a hallmark of advanced HUUM engineering. This tunnel fully encloses and protects the heating elements, promoting enhanced airflow for faster heat-up times and longer element lifespan. Shared only with the HUUM Cliff model, this design innovation makes the Steel one of the most efficient and technically sophisticated heaters in the HUUM lineup.

Like all HUUM models, the Steel combines modern functionality with timeless sauna tradition. It supports Wi-Fi control via the UKU system, allowing you to manage temperature and timing remotely. With a maximum temperature of 110°C, generous stone capacity, and refined Scandinavian design, the HUUM Steel offers a perfect balance of power, elegance, and intelligent performance.

Heater Includes

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

Additional Requirements

  • UKU sauna control system

  • 150 kg (330 lb) of sauna stones (diameter: 3–5 cm / 1.2–2 in)

Specifications

  • Sauna room size: 5–9 m³ (177–318 ft³)

  • Stone capacity: 150 kg (330 lb)

  • Weight: 15 kg (33 lb)

  • Height: 975 mm (38.4 in)

  • Width: 320 mm (12.6 in)

  • Depth: 320 mm (12.6 in)

  • Safety distances: See 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
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