Description
The HUUM HIVE 18 kW is a powerful and highly efficient electric sauna heater engineered for large residential and commercial steam rooms. Built in Estonia from premium stainless steel, this heater delivers exceptional heating performance and maintains a stable, comfortable sauna environment session after session.
With an impressive 550 lb stone capacity and high-output heating elements, the HIVE 18 kW warms the room quickly and evenly. When water hits the super-heated stones, it produces smooth, abundant steam—ideal for both traditional Finnish dry sauna sessions and humid steam-style experiences. Its clean, cylindrical Scandinavian design makes it a striking centerpiece in any modern wellness space, especially for customers looking to buy an electric sauna heater that combines premium quality with long-term reliability.
Key Advantages of the HUUM HIVE 18 kW
• Heavy-duty stainless steel construction for exceptional durability
• Fast, even heat distribution thanks to high-performance heating elements
• Large 550 lb stone capacity for rich, long-lasting steam output
• Compatible with HUUM Wi-Fi and GSM smart controllers for remote operation
• Integrated air tunnel improves airflow and speeds up heat-up time
• Modern Scandinavian design perfect for luxury home saunas and commercial facilities
The HUUM HIVE 18 kW heater comes with rounded diabase stones — a volcanic-origin mineral known for its fine-grained structure and excellent heat retention. Thanks to their natural density and thermal properties, these stones heat up quickly and release warmth slowly and evenly over time. Their rounded shape allows for tight, compact placement inside the heater, ensuring maximum surface contact and efficient heat transfer. This results in smooth, abundant steam and a stable sauna climate throughout each session.
The HUUM HIVE 18 kW is an outstanding choice for homeowners and wellness professionals seeking a powerful, elegant, and highly reliable electric sauna heater that elevates the entire sauna experience.
Complete your heater — choose your control
HUUM electric heaters ship without a control unit or stones. This heater is over 11 kW, so a UKU control also needs a UKU Extension Box (see above). Pick a control from the dropdown above, or shop it on its own page:
- UKU Local — wired, no app ($1,062)
- UKU Wi-Fi — heat your sauna from your phone ($1,324)
- UKU Extension Box — required for this heater ($773)
Sauna stones (16 boxes, 2–4 in) can be added below, or sourced elsewhere.
