The Timberwolf Economizer EPA wood stoves provide an economical solution to rising costs of home heating. These clean burning, cost effective stoves deliver the reliable heat you need. Outstanding efficiencies, a solid cast iron arched door and an impressive viewing area make Timberwolf stoves a perfect choice for your home or cottage.Comes standard with a fully refractory lined firebox Comes standard with painted black cast iron door Outstanding 83.9% efficiency rating Heats from 800 to 3500 sq. ft. Firebox capacity of 3 cu. ft. (EPA tested) Emissions 2.9 grams per hour Up to 85,000 BTUs President's limited lifetime warrantyDepth: 29-1 8 Height: 31 Weight: 410 Width: 25-3 8