HUUM HIVE 18STUX Sauna Heater Package – A high-performance heating solution designed to bring modern elegance and exceptional warmth to your sauna space.

This all-inclusive package features the powerful HUUM HIVE 18kW freestanding sauna heater, engineered for sauna rooms up to 1,236 cubic feet (CF). It includes the UKU digital control system, an (optional) Wi-Fi upgrade for remote operation, a UKU extension box, and an impressive 528 lbs of sauna stones for superior heat retention.

Built for maximum thermal efficiency, the HIVE 18STUX’s large stone capacity ensures a soft, consistent heat and long-lasting steam, even in larger sauna spaces. Designed for durability and efficiency, the HUUM Air Tunnel—a stainless-steel core feature—enhances air circulation, extends the lifespan of heating elements, and accelerates heating time by 25%.

Precision-crafted in Estonia, this heater combines sleek, modern aesthetics with traditional sauna performance, making it the ideal choice for those who demand exceptional quality and efficiency.

For ultimate convenience, the Wi-Fi control option allows you to preheat your sauna remotely, ensuring a seamless and luxurious sauna experience every time.

Features

HIVE 18.0kW Sauna Heater

• Elegant design
• Suitable for commercial use
• 240V/1PH operation
• For sauna rooms from 636 to 1236 cu. ft.
• Works with UKU controls
• Works with UKU extension box
• Large 528 pound stone capacity
• Direct contact between stones and heating elements
• More exposed stones create a longer and milder heat
• Stainless steel construction
• Stainless steel, industrial quality heating elements​
• Floor model with adjustable legs
• Air tunnel shortens heat-up time and increases life of heating elements
• Designed, engineered, and made in Estonia
• Dimensions: 22"Diameter (560mm) x 29.5"H (750mm)
• SGS listed
• Limited 5-year warranty (excluding elements)

UKU Control

• Sleek black control display panel
• Multiple color options available (additional charges apply)
• Settable on/off, time, temperature, and delay
• Settable temperature range of 104-230°F
• Delayed start up to 48hrs in advance
• Optional built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
• 8 language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
• Inside/outside sauna room installation
• Optional smart heating setting
• Available decorative control display panels
• 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
• Control Console Dimensions: 2.2"W (55mm) x 0.9"D (22mm) x 4.1"H (105mm)
• Main Control Module Dimensions: 3.5"W (90mm) x 2.3"D (58mm) x 5.6"H (142mm)
• Limited 5-year warranty

UKU Extension Box

• For use with UKU controls
• For heaters over 12kW
• Dimensions: 7"W (178mm) x 4"D (101mm) x 10"H (254mm)
• Limited 5-year warranty

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)

HUUM Air Tunnel

• Compatible with all HIVE heaters
• Shortens heat-up time
• Increases life of heating elements
• Less stones needed to fill heater
• Constructed of stainless steel

Includes

HIVE 18.0kW Sauna Heater

• 18.0kW Sauna Heater
• Adjustable Legs
• Pre-Installed HIVE Air Tunnel
• Installation and Operation Manual
• 5-Year Limited Warranty (excluding elements)

UKU Control

• Black Control Console
• Main Control Module
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable
• Temperature Sensor Cable
• Door Sensor Cable
• Installation and Operation Manual
• 5-Year Limited Warranty

UKU Extension Box

• Extension Box
• Installation and Operation Manual
• 5-Year Limited Warranty

Stones 24

• 528 lbs of 2" - 4" (5-10 cm) Round Olivine Sauna Stones 

HUUM Air Tunnel

• Compatible with all HIVE heaters
• Shortens heat-up time
• Increases life of heating elements
• Less stones needed to fill heater
• Constructed of stainless steel
  

Specifications