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Enhance your home wellness sanctuary with the HUUM STEEL Mini 4, a high-performance electric heater designed specifically for limited spaces. This slim, sculptural heater combines modern Nordic aesthetics with precision engineering, allowing for remarkably small safety distances to walls. Perfect for compact residential home saunas, the STEEL Mini ensures that even the smallest rooms can provide the authentic, soft steam (Loyly) experience characteristic of a premium Estonian spa.
Despite its slender profile, the STEEL Mini features a high stone capacity and a unique internal air duct structure that allows it to heat 25% faster than comparable heaters in its class.
Slim & Space-Saving Design
The STEEL Mini is engineered for installations where maximizing interior space is a priority. Its well-optimized, wall-mounted structure allows for an industry-leading safety distance of just 2.5 inches from combustible walls. This makes it the ideal choice for small sauna cabins or custom-built home spas where traditional floor-mounted heaters would be too bulky or require excessive clearance.
Superior Heating & Steam
The HUUM STEEL Mini 4 is built with an integrated internal air duct that optimizes airflow, significantly reducing heat-up times and ensuring an even thermal climate throughout the room. With a stone capacity of 132 lbs (60 kg), the heater provides exceptional heat retention and steam production. When water is poured over the stones, the STEEL Mini generates the soft, consistent steam that is essential for an authentic Finnish or Estonian sauna session.
Durable Stainless Steel Craftsmanship
Each HUUM heater is precision-crafted in Estonia using high-grade stainless steel for maximum durability and corrosion resistance. The sculptural, vertically-oriented cage design is not just a visual statement; it is a functional choice that exposes a significant surface area of the stones to the air for efficient heat radiation.
Easy Operation & Smart Integration
Designed for the modern home, the STEEL Mini 4 (3.5 kW) operates on a standard 240V 1-phase connection (15 amp). It is designed to be paired with an external control system, such as the HUUM UKU series, which allows for precise temperature management and, with the Wi-Fi option, the ability to preheat your sauna directly from your smartphone.
Features
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Compact Slim Profile: Optimized for small saunas with limited interior space.
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Rapid Heating: Integrated air duct ensures 25% faster heat-up times.
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Small Safety Clearances: Can be installed just 2.5" from combustible walls.
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High Stone Capacity: Holds 132 lbs of stones for superior heat retention and steam.
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Premium Stainless Steel: Durable and rust-resistant Estonian craftsmanship.
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Wall-Mounted Design: Frees up valuable floor space within the sauna.
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Residential Ready: 3.5 kW power output is ideal for small home saunas.
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Smart Control Compatible: Designed for use with HUUM UKU local or Wi-Fi controllers.
Specifications
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Power Output: 3.5 kW.
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Sauna Room Size: 106 – 177 cubic feet (3 – 5 m³).
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Stone Capacity: 132 lbs (60 kg).
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Dimensions: 12.6" W x 6" D x 38.4" H.
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Electrical: 240V, 1-phase, 15 Amps (14 AWG wire).
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Weight: 15 kg (Approx. 33 lbs) without stones.
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Warranty: Manufacturer's limited warranty included.
What’s Included
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(1) HUUM STEEL Mini 4 Electric Heater
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(1) Wall Mount Bracket
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(1) Installation Manual