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HUUM

HUUM HIVE Series 12 kW Sauna Heater with Stones and Control

4.9 60 online product reviews
$4,79900 $6,79900
Tax and shipping included in price. Discounts calculated at checkout.
Heater Control Package
Experience


Organic design. Bold heat. The HUUM HIVE 12 kW Sauna Heater is proof that elegance doesn’t need to shout. With 12 kW of output and a generous 528 lbs of sauna stones, it delivers long, rolling waves of steam that feel bigger than its footprint.

Paired with the UKU control system (Wi-Fi optional), extension box, and precision Estonian engineering, this package is more than a heater. It’s a complete ritual in one stainless-steel statement piece. Built for sauna rooms up to 883 cu ft, the HUUM HIVE 12 kW Sauna Heater brings European craftsmanship into your space with heat that lingers and design that speaks for itself.

The Full Package

HIVE 12 kW Sauna Heater: stainless steel floor model with adjustable legs and air tunnel
UKU Control: smart console, sensors, cables, and main module (Wi-Fi optional)
UKU Extension Box: seamless fit for 12 kW integration
Sauna Stones – 528 lbs of rounded olivine diabase (2″–4″ / 5–10 cm)

Highlights

 

HIVE 12 kW Sauna Heater

  • 12.0kW stainless steel floor model, commercial-grade
  • Holds 528 lbs of stones for long, mild heat
  • Direct stone contact with heating elements
  • Air tunnel for faster heat-up and longer element life
  • Adjustable legs for perfect fit
  • For sauna rooms 423–883 cu. ft.
  • Dimensions: 22″ (560 mm) diameter × 29.5″ (750 mm) height
  • Limited 3-year warranty (excluding elements)
  • User manual (all languages)

 

UKU Control

  • Sleek black panel with multi-language options
  • Set temp (104–230°F), timer, and up to 48-hr delay
  • Optional Wi-Fi control via HUUM mobile app
  • Inside or outside sauna installation
  • Overheat protection + child safety lock
  • Connects to lights and ventilation
  • Limited 3-year warranty
  • User manual (all languages)

 

UKU Extension Box

  • Required for heaters over 12kW
  • Dimensions: 7″ W × 4″ D × 10″ H
  • Limited 3-year warranty
  • Wiring instructions

 

528 lbs of Olivine Diabase Stones

  • Rounded shape complements heater design
  • Sizes range from 2″–4″ (5–10 cm)
  • High-heat capacity for consistent performance
Setup

Heater included: Yes. HUUM HIVE 12 kW stainless steel floor model with adjustable legs
Home Ready: No. Requires 240V/1PH electrical service
Power Upgrade: Yes. Over 12kW output requires UKU Extension Box (included)
Electrician required: Yes.  Must be installed by a licensed professional
Indoor or outdoor use: Indoor sauna rooms only, with proper electrical setup
Assembly: Ships ready to install; all major components included

Assembly Video

 

Specifications
Model HIVE 12STUX Pkg
HIVE 12
Kilowatt Rating 12.0kW
Minimum Cubic Feet 424
Maximum Cubic Feet 883
Heater Weight 49.1 lbs
Shipping Weight with Sauna Stones 577.1 lbs
240V, Single-Phase Amperage 50
Circuit Breaker 30 + 30
Wire Size AWG 10 + 10
Diameter 22" (560mm)
Height 29.5" (750mm)
UKU Control
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)

4.9

60 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

HUUM HIVE Series 12 kW Sauna Heater with Stones and Control Review Summary

4.9

60 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

What people like

This floor-mounted electric heater is highly acclaimed for its striking minimalist design and exceptional performance in larger sauna rooms. Users frequently praise its massive stone capacity, which ensures a soft, consistent, and long-lasting steam experience. The integration with smart controls allows for convenient remote operation, while the high-quality stainless steel construction provides both durability and a modern aesthetic that enhances the overall atmosphere of any wellness space.

Pros

  • Large Stone Capacity: The massive volume of stones allows for a superior, gentle steam experience that lasts longer than standard heaters.
  • Stunning Visual Aesthetic: Many owners appreciate the sculptural, rounded design that serves as a high-end centerpiece for their sauna project.
  • WiFi App Integration: The ability to control temperature and scheduling remotely via a smartphone is cited as a major convenience for modern users.
  • High-Quality Construction: The use of premium stainless steel and precision engineering ensures a durable build and a high-end feel.

Cons

  • Lengthy Heat-Up Time: Because of the high stone mass, the unit can take an hour or more to reach peak temperatures compared to smaller units.
  • Delicate Heating Elements: Users must be extremely careful when placing stones, as the internal coils are prone to bending or damage if the weight is not distributed correctly.
  • Significant Power Requirements: The 12.0kW output necessitates a high-amperage electrical circuit and professional installation, which may increase the total project cost.
  • Stone Cleaning Effort: Washing and loading the hundreds of pounds of required stones is a labor-intensive process mentioned by several reviewers during the setup phase.
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