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HUUM CORE BK Electric Sauna Heater (6.5kW; 9kW; 10.5kW)

HUUM CORE BK/ST Electric Sauna Heater

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$1,880.00
$1,880.00 - $2,135.00
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Style Option: Black Inlay (CORE BK)
Select an Option: 6.5kW (For sauna rooms 177-318 cubic feet)

The HUUM CORE BK/ST Sauna Heater brings modern Nordic design and adaptable functionality to a compact, refined form. Built in Estonia, the CORE BK/ST features a stainless-steel structure and your choice of inlay finishes. The unit is delivered without an exterior casing, allowing easy customization with ceramic tile, stone, glass, or wood for a personalized, built-in appearance.

Available in multiple power ratings to fit a wide range of sauna sizes, the CORE is engineered for tight spaces with its small footprint and minimal safety distance requirements. Its versatile design also supports bench-embedding installations, offering more flexibility when planning your sauna layout.

The open stone housing heats the room efficiently and allows users to pour water over the stones to create steam. When paired with a UKU Control (sold separately), the heater offers convenient and consistent operation.

Backed by a 3-year private-use warranty, the HUUM CORE BK/ST delivers durable construction, thoughtful design flexibility, and a clean modern aesthetic suited for a variety of sauna interiors.

Features

  • 240V/1PH operation
  • Customizable design with choice of different inlay finishes
  • Allows personalization with ceramic tiles, stones, glass, or wood
  • Can be completely embedded into a sauna bench
  • Direct contact between stones and heating elements
  • Stainless steel, industrial quality heating elements
  • Designed, engineered, and made in Estonia
  • Works with UKU Controls (sold separately)
  • 66 pound stone capacity (required 2 boxes sold separately)
  • Dimensions: 12.2"W (31 cm) x 12.2"D (31 cm)  x 32.7"H (83 cm)
  • Limited 3-year residential warranty and limited 1-year commercial warranty (excluding elements)

Specifications

Power Rating
6.5 kW | 9 kW | 10.5 kW
Sauna Room Size
6.5 kW: 177–318 cu. ft.
9 kW: 283–460 cu. ft.
10.5 kW: 354–566 cu. ft.
Voltage / Phase / Amperage / Wire Size AWG
6.5 kW: 240V / 1PH / 25A / 10
9 kW: 240V / 1PH / 37.5A / 8
10.5 kW: 240V / 1PH / 43.75A / 8
Stone Capacity
66 lb (30 kg) — requires 2 boxes (sold separately)
Weight
41.9 lb (19 kg)
Shipping Weight with Sauna Stones
107.9 lb (48.9 kg)
Dimensions
12.2"W × 12.2"D × 32.7"H (310 × 310 × 830 mm)
Wood Panel Dimensions
15.1"W × 1.1"D × 31.5"H (384 × 28 × 800 mm)
Safety Distances
A: 2" (40 mm)
H: 32.7" (830 mm)

What's Included 

  • Electric sauna eater
  • Adjustable legs (4)
  • Unfinished metal shields (4)
  • Cover strips (4)
  • Cover strip fastening screws
  • Installation and operation manual
  • 3-year residential warranty and 1-year commercial warranty

Complete Your Setup

The following components are essential for proper installation and operation of this product:

Manuals & Resources

Product Manual

Stone Requirements

HUUM Sauna Heater Size Calculator

Element Requirements

Warranty

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