The Tundra II is a completely re-engineered high efficiency wood furnace that meets EPA (CSA B415.1-10) clean-air standards. This enhanced furnace will provide considerable energy savings over a conventional wood furnace, using up to 30% less wood for the same amount of heat. The Tundra II is equipped with an adjustable rectangular hot air plenum that can accommodate 6 to 10, 6-inch diameter heating ducts. This adjustable plenum provides greater flexibility for an easier installation. It also boasts an electronic probe, which measures the temperature in the plenum and varies the blower speed accordingly, assuring maximum comfort. It accepts 22" logs and also features an easy to access ash drawer, motorized damper control, high quality C-cast baffle, cast iron door with glass and air wash system for glass.