Modern and Exceptional Steam for Saunas with Huum Customizable Core Series Electric Sauna Heater

What Makes the Huum Customizable Core Series Electric Sauna Heater the Best for Saunas?

The HUUM CORE BKST Electric Sauna Heater delivers powerful performance with a clean, industrial aesthetic. Featuring a durable black stainless steel exterior and a large stone capacity, this heater produces soft, long-lasting steam while serving as a bold focal point in modern sauna designs. Engineered and manufactured in Estonia, the CORE BKST is ideal for homeowners seeking a minimalist, metal-forward look without sacrificing steam quality or efficiency.

Note: Required control and sauna stones (2 boxes) sold separately.

Why Choose the HUUM?

HUUM combines minimalist Nordic design with advanced engineering to deliver soft, long-lasting steam. Crafted in Europe with premium materials, HUUM heaters provide even heat, efficient performance, and a beautifully modern sauna experience.

What's Included?

• Sauna Heater
• Adjustable Legs (4)
• Unfinished Metal Shields (4)
• Cover Strips (4)
• Cover Strip Fastening Screws
• Installation and Operation Manual

Key Features

• 240V/1PH operation
• Customizable design with choice of different inlay finishes
• Allows personalization with ceramic tiles, stone, 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)

Manuals for Customizable Core Series Electric Sauna Heater of Huum

• Installation Manual
• Warranty
• Required Elements
• Stone Requirements
• Size Your Sauna

Specifications for Huum Customizable Core Series Electric Sauna Heater

CORE BK/ST 6

• Room Size: 177–318 cu. ft.
• Wattage Rating: 6,500 W
• Amperage: 25 A
• Wire Size (AWG): 10

CORE BK/ST 9

• Room Size: 283–460 cu. ft.
• Wattage Rating: 9,000 W
• Amperage: 37.5 A
• Wire Size (AWG): 8

CORE BK/ST 11

• Room Size: 354–566 cu. ft.
• Wattage Rating: 10,500 W
• Amperage: 43.75 A
• Wire Size (AWG): 8

CORE BK/ST (General Specifications)

• Room Size: 177–566 cu. ft.
• Wattage Rating: 6,500–10,500 W
• Voltage: 240 V
• Phase: 1
• Amperage: 25–43.75 A
• Circuit Breaker: See Installation and Operation Manual
• Wire Size (AWG): 10 or 8
• Safety Listing: CE (CE Certificate)
• Minimum Ceiling Height: 80" (203 cm)
• Safety Distance (Front to Back): See Installation and Operation Manual
• Safety Distance (Left to Right): See Installation and Operation Manual
• Stone Capacity: 66 lbs (30 kg)
• Stone Size: 2"–4" (5–10 cm)
• Width: 12.2" (31 cm)
• Depth: 12.2" (31 cm)
• Height: 32.7" (83 cm)
• Weight: 41.9 lbs (19 kg)
• Shipping Weight (with Sauna Stones): 107.9 lbs (48.9 kg)