HUUM HIVE 18 — High-Capacity Electric Sauna Heater (18.0kW)

The HUUM HIVE 18kW Electric Sauna Heater is the ultimate high-capacity solution for large private and commercial saunas. Engineered for sauna rooms between 636 and 989 cubic feet, this striking floor-standing heater blends modern elegance with powerful heating performance.

Designed to hold an impressive 528 pounds of stones, the HIVE 18 delivers exceptionally smooth, consistent heat with rich, long-lasting löyly. More exposed stones increase steam capability and help maintain stable temperatures even in heavy-use environments such as health clubs, spas, wellness centers, and athletic facilities.

Crafted in Estonia with HUUM’s signature stainless-steel construction, the HIVE 18 includes a pre-installed air tunnelthat reduces heat-up time and extends the life of the heating elements. Pair this heater with a HUUM UKU Control System for precise, professional-grade temperature management — including app-based control via Wi-Fi options.

Whether in a commercial setting or a large residential sauna, the HIVE 18 combines durability, beauty, and authentic European sauna performance.

• 18.0kW High-Output Heat: Perfect for commercial or large residential saunas

• Massive 528-Lb Stone Capacity: Produces soft, stable, long-lasting radiant heat

• Modern Column Design: A striking visual centerpiece for premium sauna spaces

• Air Tunnel Technology: Shortens heat-up time and increases element lifespan

• Compatible with HUUM UKU Controls: Local, Wi-Fi, Glass, Mirror, Gold panels available

• Requires HUUM UKU Extension Box: Needed for high-power heaters (sold separately)

• Direct Stone-to-Element Contact: Enhances efficiency and steam performance

• Adjustable Legs for Level Installation

• Premium Stainless Steel Construction: Durable, corrosion-resistant, and elegant

• SGS Listed: Meets international safety and performance standards

• Designed & Crafted in Estonia: Authentic Nordic engineering

• HUUM HIVE 18kW Sauna Heater

• Adjustable Legs

• Pre-Installed HIVE Air Tunnel

• Installation & Operation Manual

• 3-Year Residential Warranty

• 1-Year Commercial Warranty (Excl. Elements)

Required for Operation (Sold Separately)

• HUUM UKU Control System — Required to operate the heater

  • UKU Local

  • UKU Wi-Fi

  • UKU Glass

  • UKU Mirror

  • UKU Gold

• HUUM UKU Extension Box — Required with UKU controls for high-wattage heaters

• HUUM Stones 24 (16 Boxes Required) — Rounded olivine stones for heat storage and steam production

Manual Links:

• HUUM Warranty

• HUUM HIVE Sauna Heater IOM Owners Manual

• HUUM Certificate of Compliance

• HUUM Required Elements

• HUUM Stone Requirements

• Sizing Your HUUM