KASTOR KARHU 40T

KASTOR KARHU 40T

The Kastor Karhu 40T is a powerful wood-fired heater with an external firebox, designed for spacious saunas and sauna complexes. Its strict, elegant design with a matte steel finish emphasizes a modern style, while the external door allows you to enjoy the view of a live fire in the adjacent room. The heater combines functionality, safety, and aesthetics—everything needed for the perfect sauna experience.

Product Features

• Body made of heat-resistant steel with a reinforced construction for a long service life.
• External firebox with panoramic heat-resistant glass, allowing the heater to be stoked from the anteroom.
• Modern, minimalist-style front panel that easily matches any interior.

Advantages

• High power and efficiency.
• Economical firewood consumption with intensive heat output.
• Fast heating of the room and stable temperature maintenance.
• The external firebox ensures cleanliness in the steam room and comfortable operation.
• The effect of a live fireplace thanks to the fire visible through the glass door.
• Soft, even steam due to the large stone mass.

Technical Specifications

• Sauna volume: 30–40 m³
• Stone capacity: 50–55 kg
• Dimensions (H×W×D): 580×585×925 mm
• Flue diameter: Ø115 mm
• Safety distances (front/side/rear/to ceiling): 500/300/300/1300 mm

Application

Suitable for spacious private and commercial saunas, SPA zones, and sauna complexes where power, reliability, and aesthetics are important.

Result

The Kastor Karhu 40T heater provides rapid heating and long heat retention, creating a soft, rich steam. Its combination of power, reliability, and modern design makes it an ideal choice for those who value true comfort and the atmosphere of fire.

Ideal for

• Large home and commercial saunas (30–40 m³)
• Owners of sauna complexes and SPA zones
• Lovers of strong heat and traditional wood-fired warmth

Important: Smoke pipes are not included in the delivery.

• Metal smoke pipes — view category
• Stainless steel chimney pipes — view category

Stones are not included - Sauna stones

Pipes are not included in package: Smoke pipes / Sauna chimney for woodburners