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 (CF).

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

• Elegant heater control display panel
• Display panel can be recessed or surface-mounted
• Built-in WiFi interface for HUUM mobile app
• 8 language options: English, German, Russian, Italian, Finnish, and Estonian
• Unlimited number of users
• Notification when set temperature is reached
• Settable on/off, time, temperature, and delay
  
• Settable temperature range of 104-230°F
• Delayed start up to 48-hours in advance
• Inside/outside sauna room installation (For outdoor installations, control must be placed in an enclosed weatherproof box)
• Optional smart heating setting
• Available decorative control display panels
  • GLASS: Black/Mirror/Gold
  • CLASSIC: Black/White/Wood
• Displays set temperature and room temperature
• Temperature sensor
• Door sensor to keep the heat inside the room
• Remotely located main control module
• Connects to lights and ventilation
• Overheat protection
• Child safety lock
• 3-year residential warranty and 1-year commercial warranty

Sauna Stones 24

Specifications

Power Rating
12kW

Sauna Room Size
424ft³ - 636ft³

Voltage / Phase / Amperage
240V / 1PH / 50A

Wire Size AWG
10 + 10

Stone Capacity
551 lbs

Min/Max Temperature
104°F - 230°F

Weight
48.5 lbs

Dimensions
Diameter: 22" (560 mm)
Height: 29.6" (750 mm)

Safety Distances
A: 4.7" (120 mm)
B: 31.5" (800 mm)
H: 29.5" (750 mm)

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
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable
• Temperature Sensor Cable
• Door Sensor Cable

Sauna Stones 24

• 551 lbs. of 2" to 4" (5-10 cm) Round Sauna Stones

UKU Extension Box

• Extension Box
• Installation and Operation Manual

Manuals & Resources