Kastor Karhu 40 T fireplace heater is suitable for a sauna with a volume of 30-40 m³. A fireplace heater, or tunnel heater, is a combination of a wood heater and a fireplace, where the heater is located in a sauna and a fireplace on the other side of the wall. So, you can first enjoy the steam on the sauna side and continue the atmosphere by the fireplace in the fireplace room, dressing room or living room. The fireplace located outside the sauna also heats the spaces outside the sauna and keeps the sauna clean when the debris coming from the firewood does not end up on the sauna floor. Kastor Karhu 40 T is a CE-marked heater. All Kastor Karhu heaters have adjustable legs, and the inside diameter of the flue is 115 mm.In addition to practicality, of course, the heater looks great. The beautiful lines of the heater are suitable for many tastes and sauna interiors. The careful design of the firebox and stone space makes the heater light without compromising on its excellent fire properties.The frame is not included in the price of the Kastor Karhu 22/30/40 T models. Available as an accessory.

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Technical specifications

Technical specifications

Colour Weight (kg) Amount of stones (kg)
Dark grey 156.0 50-55
Effect (kW) Measurements (WxHxD) Sauna size (m3)
15 580x925x585 30-40
Safety distance, back Safety distance, up Safety distance, side Safety distance, front
50 1300 300 500


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