HUUM HIVE 18kW Electric Sauna Heater Package
An 18kW HUUM Hive electric heater package — 528 lb stone capacity for the strongest löyly HUUM makes, with UKU control.
- 528 lb stone capacity for the strongest löyly HUUM makes.
- Air Tunnel cuts heat-up time 25% and extends element life.
- UKU controller handles scheduling and 8 languages; Wi-Fi optional upgrade.
See What People Are Saying…
“This has completely transformed my workspace. The natural light is a game changer!”
“Built it in a weekend with my brother. Glass front is the move — feels like a real room, not a closet.”
“I love the design and how easy it was to set up. Highly recommend for any home owner.”
- Description
- Features
- Package Includes
- Specifications
- Documents
- Warranty
Complete HUUM HIVE 18kW 240V/1PH Electric Sauna Heater Package
The HUUM HIVE 18.0kW sauna heater package combines modern elegance with high-capacity performance, providing everything you need for a luxurious sauna experience. Precision-engineered and crafted in Estonia, this all-inclusive package is designed for sauna rooms up to 989 cubic feet (CF) and includes the free-standing HIVE 18kW sauna heater, UKU control system (with optional Wi-Fi), UKU extension box, and 528 pounds of sauna stones.
With its large stone capacity, the HIVE series delivers maximum thermal efficiency, consistent soft heat, and long-lasting hot steam, making it ideal even for larger saunas. The HIVE lineup is a testament to pure performance, offering a true European sauna experience for your home.
HUUM has updated its HIVE and HIVE MINI sauna heaters to include a HUUM Air Tunnel. This stainless-steel housing, positioned at the center of the heater will speed up heating by 25%, enhance air circulation, and increase the lifespan of the heating elements.
- 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 3-year warranty (excluding elements)
UKU
- Control display panel (appearance depends on variant you select)
- Multiple Color Options available
- Settable on/off, time, temperature, and delay
- Settable temperature range of 104-230F
- 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)
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 3-year warranty
Stones 24
- HUUM 2-4" rounded olivine 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
- Full stone load still required — the air tunnel does not reduce the quantity of stones
- Constructed of stainless steel
HIVE Series 18.0kW Sauna Heater
- 18.0kW Sauna Heater
- Adjustable Legs
- Pre-Installed HIVE Air Tunnel
- Installation and Operation Manual
- 3-Year Limited Warranty (excluding elements)
UKU
- Control console
- Main control module
- Temperature sensor
- Door sensor
- Control display panel cable
- Temperature sensor cable
- Door sensor cable
- Installation and operation manual
- 3-Year Limited Warranty
Extension Box
- For use with UKU controls
- For heaters over 9kW
- Dimensions: 7"W (178mm) x 6"D (152mm)7"H (178mm)
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
- Full stone load still required — the air tunnel does not reduce the quantity of stones
- Constructed of stainless steel
| Heater Size | 12 kW | 15 kW | 18 kW |
| Sauna Room | 424-636 cu. ft. (12-18 m³) | 530-813 cu. ft. (15-23 m³) | 636-989 cu. ft. (18-28 m³) |
| Stone Capacity | 528 lb (239 kg) |
528 lb (239 kg) |
528 lb (239 kg) |
| Height | 29.53 in (750 mm) | 29.53 in (750 mm) |
29.53 in (750 mm) |
| Diameter | 22.05 in (560 mm) |
22.05 in (560 mm) | 22.05 in (560 mm) |
| Weight | 48.5 lb (22 kg) | 50.7 lb (23 kg) | 53 lb (24 kg) |
Safety Distance
| Heater Size | 12 kW | 15 kW | 18 kW |
| A | 4.73 in (120 mm) | 5.91 in (150 mm) |
7.1 in (180 mm) |
| B | 31.5 in (800 mm) |
33.86 in (860 mm) |
36.22 in (920 mm) |
Power
HIVE 12, 15 and 18 are two-circuit heaters: each needs two dedicated breakers and two supply cables landed on the L1/L1/L2/L2 terminal block. Figures below are taken from the current HUUM installation & operation manual. Installation must be carried out by a licensed electrician, and local code applies wherever it is stricter.
| 240V Supply | HIVE 12 | HIVE 15 | HIVE 18 |
| Output | 12 kW | 15 kW | 18 kW |
| Current Draw | 50 A | 62.5 A | 75 A |
| Circuit Breaker | 30 + 30 A | 50 + 50 A | 50 + 50 A |
| Min. Wire Size | 10 + 10 AWG | 6 + 6 AWG | 6 + 6 AWG |
The same heaters run on a 208V supply at reduced output, which also reduces the room they can heat:
| 208V Supply | HIVE 12 | HIVE 15 | HIVE 18 |
| Output | 9 kW | 11.25 kW | 13.5 kW |
| Current Draw | 43.27 A | 54.09 A | 64.9 A |
| Circuit Breaker | 30 + 30 A | 40 + 40 A | 40 + 40 A |
| Min. Wire Size | 10 + 10 AWG | 8 + 8 AWG | 8 + 8 AWG |
| Sauna Room | 318-495 cu. ft. (9-14 m³) |
389-601 cu. ft. (11-17 m³) |
477-742 cu. ft. (13.5-21 m³) |
UKU Local
| Minimum Temperature Setting | 104°F |
| Maximum Temperature Setting | 230°F |
| Shipping Weight | 20 lbs |
| Console Dimensions | |
| Width | 2.2" (55mm) |
| Depth | 0.9" (22mm) |
| Height | 4.1" (105mm) |
| Main Module Dimensions | |
| Width | 3.5" (90mm) |
| Depth | 2.3" (58mm) |
| Height | 5.6" (142mm) |
| Display Panel Cable | |
| Length | 9.8 ft |
| AWG | 22 |
| Temp Sensor Cable | |
| Length | 16.4 ft |
| AWG | 24 |
| Door Sensor Cable | |
| Length | 16.4 ft |
| AWG | 24 |
UKU Ext Box
| Voltage | 240 |
| Circuit Breaker Amperage | 2 x 63 |
| Weight | 3.25 lbs |
| Width | 7" (178mm) |
| Depth | 4" (101mm) |
| Height | 10" (254mm) |
