Kastor Karhu 20 Wood Burning Heater

The Kastor Karhu 20 Wood Burning Sauna Heater takes traditional wood-fired sauna experiences to the next level, combining authentic atmosphere with intelligent Finnish engineering. Designed for those who value ritual, warmth, and natural heat, the Karhu delivers rich, soothing sauna sessions powered by real flame.

Featuring a 60 kg stone capacity, the Karhu 20 produces beautifully soft steam and deep, consistent heat. Its intelligent internal design is engineered to extract maximum heat from minimal wood, delivering excellent efficiency without sacrificing performance.

With its elegant lines and chrome front panel, the Karhu becomes a striking feature within any sauna space, blending classic character with modern refinement.

The Kastor Karhu 20 is an ideal choice for outdoor saunas and traditional sauna builds where atmosphere, performance, and craftsmanship matter.

Flue and exhaust system not included. Sauna stones sold separately.

Key Features

• Traditional wood-burning sauna heater
• Large 60 kg stone capacity for soft, enveloping steam
• Intelligent combustion design for high heat efficiency
• Handsome design with chrome front panel
• Delivers authentic sauna atmosphere and natural heat
• Ideal for outdoor and traditional sauna builds

Specifications

• Model: Kastor Karhu 20
• Weight: 45 kg
• Dimensions: 44 × 48 × 74 cm
• Installation: Floor standing
• Heating type: Wood burning
• Stone capacity: 60 kg (sold separately)
• Flue system: Not included

All installation must be carried out in accordance with the Manufacturer’s Installation Manual and all local building and fire regulations. Professional installation is strongly recommended.