Breckwell Dual Blower Wood Furnace SWF1035Dual Blower Breckwell Wood Furnace SWF1035 Product Details The Breckwell SWF1035 Wood Furnace has powerful heating capabilities up to 3,500 sq ft. The SWF1035 boasts over 180,000 BTUs, at max output, which an excellent output of heat. Its heavy duty cast iron door with a glass viewing front that gives out the ambience of flame without compromising efficiency. The open plenum allows for easy installation and with a built in ash pan, dual blowers and