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HUUM

HIVE 15 kW HUUM Sauna Heater with Stones and Control

4.9 37 online product reviews
$5,29900 $7,49900
Experience

Why settle for “hot” when you can have legendary?
The HUUM HIVE 15 isn’t just a heater—it’s the heart of a sauna built for beauty, endurance, and unapologetic performance. Designed in Estonia with the kind of precision usually reserved for luxury watches, this all-inclusive set delivers a deep, even heat that feels like it’s been curated just for you. From the commanding stainless steel HIVE to the sleek, intelligent UKU controls, every piece is here to turn your sauna into an experience worth savoring.

Highlights

Commercial-Grade Power – 15.0kW of sauna-dominating heat for rooms up to 1,060 cu. ft.

Stone-Forward Design – 528 lbs of exposed olivine diabase stones for that long, rolling heat

Smart Control Options – UKU control with settable temp, timer, delay, and optional Wi-Fi app

Crafted in Estonia – Engineered for efficiency, beauty, and decades of service

All-Inclusive Package – Heater, controls, extension box, and stones—no hunting for extras

Setup

Heater included: Yes – HUUM HIVE 15.0kW 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

What’s Inside the Bundle

HIVE 15.0kW Sauna Heater

  • 15.0kW 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 530–1,060 cu. ft.
  • Dimensions: 22″ (560mm) diameter × 29.5″ (750mm) 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 5-year warranty
  • User manual (all languages)

 

UKU Extension Box

  • Required for heaters over 12kW
  • Dimensions: 7″ W × 4″ D × 10″ H
  • Limited 5-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
Assembly Video

 

Specifications
Model HIVE 15STUX Pkg
HIVE 15
Kilowatt Rating 15.0kW
Minimum Cubic Feet 530
Maximum Cubic Feet 1060
Heater Weight 51.3 lbs
Shipping Weight with Sauna Stones 579.3 lbs
240V, Single-Phase Amperage 62.5
Circuit Breaker 50 + 50
Wire Size AWG 8 + 8
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

37 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.

HIVE 15 kW HUUM Sauna Heater with Stones and Control Review Summary

4.9

37 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 high-capacity sauna heating solution is widely celebrated for its striking minimalist aesthetic and exceptional stone capacity, which produces a soft, long-lasting steam experience. Users appreciate its efficient performance in heating large sauna rooms and the convenience of modern control integrations that allow for remote operation. Its durable stainless steel construction and refined craftsmanship are frequently noted as top-tier features that enhance the overall ambiance of a luxury sauna.

Pros

  • High Stone Capacity: The heater holds an impressive volume of stones, which results in a superior, gentle steam quality that lingers in the air much longer than standard heaters.
  • Modern Aesthetic Design: Its unique and elegant stainless steel basket design serves as a stunning visual centerpiece for high-end sauna installations.
  • Smart Control Integration: Compatibility with advanced WiFi-enabled controllers allows users to conveniently preheat their sauna remotely via a mobile application.
  • Efficient Large Heating: With its powerful output, it is highly effective at reaching and maintaining consistent temperatures in larger residential or commercial sauna spaces.

Cons

  • Extended Heat-up Time: Because of the massive volume of stones, it can take significantly longer for the unit to reach the desired temperature compared to heaters with lower stone capacities.
  • Complex Installation Requirements: The high power draw and specific wiring needs necessitate professional electrical work and a robust power supply, which can increase the total cost of ownership.
  • Heating Element Fragility: Some users have noted that the internal heating elements can be sensitive to damage if the large volume of stones is not packed carefully or if they shift over time.
  • Significant Financial Investment: The premium price of the unit and the additional cost of the high volume of required stones make this a more expensive option than traditional models.
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