HUUM HIVE Series 12 kW Sauna Heater with Stones and Control

4.9 60+ online product reviews

$4,799⁰⁰ ~~$6,799⁰⁰~~

Heater Control Package

Product variants

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)