Polar Wood Burning Sauna Stove - KS 20V PK Wood Burning Heater - No Electricity Necessary Designed to power saunas that are 282 to 706 cubic feet. Reinforced Air Guide Plate for Efficient Wood Burning & Removable Ash Pan for Easy Cleaning Chimney Outlet with Adapter Pipe to Vent Out Top or Backside of Stove Included Glass Door Included & Made in Finland