Part of a range of intelligent wood burning home sauna heaters from Kastor, the Karhu offers everything you could ever need for pure home sauna enjoyment. With an extensive range of sizes this remarkable heater can warm both domestic and commercial saunas. The Karhu will heat saunas from as small as 8m3 right up to a substantial 40m3 with complete ease. With the Kastor Karhu you get everything you need for the perfect sauna. Additionally, there are a range of extensions such as water tank, protective wall and base plate. Stunning to look at with brushed steel two-tone finish, the Kastor Karhu sauna heater is designed to burn as little wood as possible to extract the maximum heat.