HUUM Hive 18kW Electric Sauna Heater

The HUUM Hive 18 kW electric sauna heater is built for large private and commercial saunas that demand consistent, powerful heat. Handcrafted in Estonia from premium stainless steel, this flagship model holds up to 552 lb of stones, ensuring soft, even steam and long-lasting warmth. With its open-air cylindrical design, the Hive 18 kW combines Nordic engineering with modern style to create a true centerpiece for any high-capacity sauna.

Features

• High-output electric heater for large residential and commercial saunas

• Heats rooms up to 1,236 cu ft (35 m³)

• 18 kW / 240 V 3-phase operation (requires dedicated breaker)

• Holds 552 lb (250 kg) of stones for stable, balanced steam

• Polished stainless construction built for decades of performance

• Compatible with HUUM UKU Local, Wi-Fi, or Glass controllers (sold separately)

• Floor-standing design with open-air body for natural convection

• Made in Estonia • UL Listed

Specifications

Installation

Must be installed by a licensed electrician on a dedicated 240 V 3-phase circuit. Place on a solid non-combustible surface with clearances per HUUM’s manual. Pair with HUUM UKU controller and HUUM stones for best results.

What’s Included

• HUUM Hive 18 kW heater

• Adjustable legs & hardware

• Installation & operation manual
  (Controller and stones sold separately.)