

Sauna Company USA · Sauna Heaters
HUUM HIVE
The HUUM HIVE is the full-size flagship — a floor-standing stone-column heater that dominates the room. Available in 12, 15, and 18 kW, it covers large sauna rooms from 400 to 600+ cubic feet. The stone-column design creates dramatic steam and exceptional heat retention. Every package includes the heater, UKU control, and a full stone load.
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Specifications & Details
Specifications
Models: HIVE 12STU-X (12 kW) · HIVE 15STU-X (15 kW) · HIVE 18STU-X (18 kW)
All models: 240V single-phase · Floor-standing · UKU control included · Extended stone load · Made in Estonia
What's Included
- HUUM HIVE Heater (your selected kW)
- UKU Local Black Digital Control Console
- Main Control Module, Temperature Sensor & Door Sensor
- Sauna Stones — full extended load
- Installation Manual · 3-Year Limited Residential Warranty
Compatibility & Sizing
The HIVE is sized for large sauna rooms. Use 1 kW per 45 cu ft as a baseline — high-ceiling or commercial rooms may require the larger model.
Shipping & Warranty
Shipping: Freight carrier, curbside delivery.
Warranty: 3-year limited residential / 1-year commercial (elements excluded).
Title
Need help specifying the right size for a commercial installation? Contact our team.


Sauna Company USA
Comes With Heater, Control, & Stones, At One Fair Price.
A Premium Heater, With 3 Sizes Available.
Sauna Company USA
The Tower That Heats.
A Premium Heater, With 3 Sizes Available.

HUUM HIVE Heater Package
Overview
The HUUM DROP 9STU Pkg is a complete sauna heater package — the award-winning DROP 9.0kW wall-mounted heater, UKU Local Black control, and a full stone load, all in one box. Everything you need to transform your sauna into a genuine ritual space, sized for rooms from 283 to 460 cubic feet.
- 9.0 kW wall-mounted electric sauna heater
- 122 lb stone capacity with direct stone-to-element contact
- Operates on 240V single-phase
- Includes UKU Local Black digital control — upgrade to WiFi available separately
Key Features
DROP 9.0kW Sauna Heater
- Iconic water-drop silhouette — Red Dot Award winner
- Wall-mounted with included bracket
- 122 lb stone capacity (4 boxes included)
- Direct contact between stones and heating elements
- More exposed stones create a longer, milder heat
- Stainless steel construction
- Works with all UKU controls
UKU Local Black Control (Included)
- Digital LED display — time, temperature, on/off
- Black console + main module + temperature sensor + door sensor
- Upgrade to UKU WiFi to preheat from anywhere
Sauna Stones (Included)
- 4 boxes — full load (~120 lbs) for immediate use
Certification
- SGS listed

About the HUUM HIVE
When the room demands more
The HUUM HIVE is the flagship large-room heater — built for traditional saunas where modest output isn't an option. Its oversized stone sphere holds an extended stone load, creating a massive heated surface that radiates soft, consistent warmth throughout large spaces. From a 12 kW home installation to an 18 kW commercial sauna, the HIVE delivers the kind of deep, enveloping heat that defines the best sauna experiences.
Resources
Documents & Manuals
Installation & User Manual
Watch & learn
Installation Guide
Follow along with this step-by-step installation and assembly walkthrough so you know exactly what to expect. Our team is one message away if you need a hand.
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