This HUUM HIVE 12kW Electric Sauna Heater Package (UKU WiFi Control) comes complete with the traditionally designed HIVE 12kW sauna heater, pre-installed HIVE Air Tunnel, UKU WiFi control, UKU extension box, and sauna stones - everything you need to build your dream sauna experience. The package has been combined for use in sauna rooms from 424 to 636 cubic feet.

The HUUM HIVE 12kW Electric Sauna Heater brings a bold, sculptural presence to larger sauna spaces. Inspired by the natural geometry of a beehive, this award-winning design highlights the visual beauty of sauna stones while delivering consistent, even warmth.

Engineered for performance and durability, the HIVE holds up to 250 kg (551 lb) of stones, ensuring steady heat distribution throughout extended sauna sessions. Built with high-grade stainless steel and designed to be positioned at the center of the room, it’s ideal for group or commercial use in spas, gyms, and wellness studios.

Starting in 2025, all HIVE models include an integrated air tunnel as a standard feature, improving airflow and overall heating efficiency. The heater is also compatible with HUUM’s mobile app, allowing easy and precise control over temperature and timing.

For enhanced safety and design harmony, pair the HIVE with a HUUM safety railing or a custom-built guard.

Features

HIVE 12kW Sauna Heater

• Elegant design
• Suitable for commercial use
• Control with a mobile app
• 551 lb stone capacity
• Stainless steel, industrial quality heating elements
• Air tunnel shortens heat-up time and increases life of heating elements
• Floor standing model with adjustable legs
• Soft and long-lasting steam
• Designed, engineered, and made in Estonia
• SGS listed
• 3-year residential warranty and 1-year commercial warranty

UKU WiFi Control

• Smart sauna control system
• Control from the wall-mounted control panel and mobile phone
• Elegant mirror finish complements contemporary interiors
• Minimalist interface with user-friendly menu
• Settable on/off, time, temperature, and delayed start function
• For heaters up to 18kW (over 11kW requires an extension box)
• Temperature range of 104–230°F (40–110°C)
• Displays set temperature and room temperature
• Safety sensor helps regulate temperature near the heater
• Bench sensor measures temperature and humidity at bench level
• Connects to lights, ventilation, and a steamer
• Overheat protection and child safety lock provide enhanced sauna safety
• Designed, engineered, and made in Estonia
• Limited 3-year residential warranty and limited 1-year commercial warranty
• Available decorative control display panels
  • GLASS: Black/Mirror/Gold
  • CLASSIC: Black/White/Wood

Sauna Stones 24

• Olivine diabase sauna stones
• Rounded shape to complement heater design
• Durable with high-heat capacity
• Stones range from 2" to 4" (5–10 cm)

UKU Extension Box

• For use with UKU controls and for heaters over 12kW
• Voltage: 240V
  
• Circuit Breaker Amperage: 2 x 63
• Weight: 3.25 lb
• Dimensions: 7" x 4" x 10"

Specifications

What's Included 

HIVE Sauna Heater

• 12kW electric sauna heater
• Adjustable legs
• Pre-installed HIVE Air Tunnel
• Installation and operation manual

UKU WiFi Control

• Control display panel
  
• Main control module
• Safety sensor
• Bench sensor
• Sensor housings (2)
• Door sensor kit
• Temperature resistant cable

Sauna Stones 24

• 551 lb of 2" to 4" (5–10 cm) round sauna stones

UKU Extension Box

• Extension box
• Installation and operation manual

Manuals & Resources