No electricity needed for the KARHU 20 wood burning sauna heater—perfect for cabins or remote locations. Specifications:

100% Finish Design
Manufactured in Finland by the oldest manufacturer of Sauna Heaters in the World
Full welded construction
Manufactured to Meet European CE Standards

Sauna size: 282-702 cu. ft.
Heater size: 17" W x 28.75" H x 18" D
Rock capacity: 70 lbs
Heater weight: 99 lbs