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Introducing the HUUM Steel Mini 4kW – the perfect sauna heater for compact spaces!
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HUUM STEEL Mini electric sauna heater is the perfect choice for those who want a powerful and efficient sauna heater for their compact home sauna. Its sleek and slim design allows for easy wall mounting, and the short safety distances make it suitable for even the smallest steam rooms. The built-in air tunnel ensures quick heating, and it still holds an impressive 60 kg of sauna stones for gentle and long-lasting steam. Plus, the elegant stainless steel enclosure adds a touch of modern style to any sauna.
The HUUM STEEL Mini electric heater is the ideal choice for small steam rooms where every centimeter counts and where steam quality must not be compromised. This heater represents HUUM’s renowned design language—minimalist, clean-lined, stylish and technically refined. STEEL Mini combines space efficiency, effective heat distribution and high-quality steam, making it one of the best heaters available for compact saunas.
With a compact 3.5 kW output, the heater is perfectly suited for steam rooms sized 3–5 m³. Thanks to its narrow and vertical design, STEEL Mini fits into places where traditional heaters simply won’t—such as small home saunas, apartment saunas or renovated attic saunas where space is limited. Despite its size, the heater provides surprisingly powerful and stable heating, creating a pleasant sauna experience with an even, comfortable temperature.
In terms of design, STEEL Mini fits perfectly into modern interiors. Its minimalist form adds a sense of openness and order to the steam room. STEEL Mini can be installed either on the floor or on the wall, making it a highly flexible solution for various spaces.
The heater is compatible with HUUM’s UKU control systems, allowing the sauna to be controlled conveniently and intelligently. Using a smartphone, you can turn the heater on, adjust the temperature, schedule heating or monitor the sauna’s performance. This is especially convenient for those who want a warm sauna before arriving home or who prefer smart home automation. UKU systems are known for their reliability and safety, ensuring a seamless user experience.
One of the key advantages of the HUUM STEEL Mini is its energy efficiency. The heater primarily heats the stones rather than the surrounding air, helping achieve the desired temperature faster and more consistently. This results in lower energy consumption while maintaining long-lasting, high-quality steam. This is a significant benefit, particularly in small homes where thermal fluctuation is more noticeable and energy use can vary greatly.
The HUUM STEEL Mini electric heater is the perfect solution for those with a small steam room but high expectations for steam quality and design. It offers everything a modern sauna owner needs: powerful heating, soft traditional steam, beautiful aesthetics and smart control options. STEEL Mini transforms even the smallest sauna into a true relaxation space, where comfort and quality always go hand in hand.
We strongly recommend including a safety railing in your sauna—either a custom design from your builder or our HUUM safety railing—for enhanced safety and comfort.
The right-sized heater = a better sauna!
Use our sauna calculator to make sure you select the correct power output.
The set includes:
Additionally required:
We recommend using rounded sauna stones, as they provide a gentler steam. The round shape of the stones allows water to flow between the layers and evaporate gradually, instead of instantly vaporizing from the top layer.
Technical data:
Safety distances:
Warranty:
If you need spare parts for this heater, please send us an email. Optional accessories can be found HERE.
EAN: 4744103010233
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