HUUM HIVE Mini 9 (9 kW) Electric Sauna Heater

Elevate your sauna experience with the HUUM HIVE Mini 9, a high-performance electric heater designed for medium-sized residential saunas. Combining a modern, sculptural aesthetic with precision engineering, the HIVE Mini 9 ensures a luxurious, soft steam (Loyly) experience characteristic of a premium Estonian spa. Its signature beehive-inspired cage exposes a significant volume of stones to the air, providing consistent, long-lasting heat and exceptional thermal mass for its size.

To ensure peak performance, every HIVE heater now includes an internal air tunnel, which speeds up the heating process by 25% and significantly extends the life span of the heating elements.

Sculptural Design & Efficient Heating

The HUUM HIVE Mini 9 is a floor-mounted, freestanding heater that holds up to 330 lbs (150 kg) of stones. This high stone capacity acts as a thermal battery, radiating heat evenly from all sides and maintaining therapeutic temperatures long after the heater has been adjusted. When water is poured over the rounded stones, the HIVE Mini 9 generates the soft, consistent steam essential for an authentic Estonian or Finnish sauna session.

High-Efficiency Air Tunnel Technology

Crafted from high-grade stainless steel and positioned in the center of the heater, the integrated HIVE Air Tunnel optimizes airflow. By directing air through the core of the stone pile, the sauna reaches target temperatures faster (approx. 20–30 minutes) and more efficiently. This technology also reduces the direct thermal stress on the heating elements, ensuring your heater operates reliably for years.

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 allows for efficient heat radiation while minimizing the amount of exposed hot metal surfaces.

Professional-Grade Control & Smart Integration

Designed for high-performance home use, the HIVE Mini 9 (9 kW) operates on a 240V 1-phase connection (50 Amps). 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 via the HUUM mobile app.

Features

• Slimmer Profile: Specifically designed for residential saunas with a medium-sized footprint.

• HIVE Air Tunnel Included: Speeds up heating by 25% and protects heating elements.

• High Stone Capacity: Holds 330 lbs of stones for superior heat retention and steam.

• Premium Stainless Steel: Durable and rust-resistant Estonian craftsmanship.

• Modern Aesthetic: Sculptural beehive design serves as a stunning centerpiece.

• Freestanding Stability: Robust floor-mounted profile with adjustable legs.

• Smart Control Compatible: Designed for use with HUUM UKU local or Wi-Fi controllers.

Specifications

• Power Output: 9 kW.

• Sauna Room Size: 283 – 460 cubic feet (8 – 13 m³).

• Stone Capacity: 330 lbs (150 kg).

• Dimensions: 18.125" Diameter x 29.625" Height.

• Electrical: 240V, 1-phase, 37.5 Amps (50 amp breaker, 8 AWG wire).

• Weight: Approx. 35 lbs without stones.

• Warranty: Manufacturer's limited warranty included (typically 5 years).

Required & Recommended Accessories

• UKU Control System: Required for operation (Local or Wi-Fi versions available).

• Rounded Stones: HUUM recommends rounded olivine diabase stones for optimal airflow.

• HIVE Safety Railing: Protects bathers from accidental contact with the heater.

• HIVE Embedded Flange: Allows for a clean finish if partially installing the heater into benches.

• HIVE Reflector: Can be used to reduce safety distances to combustible walls.