Drolet Heatmax II High-Efficiency Add-On Furnace — 310,000 BTU, EPA Certified

The Drolet Heatmax II High-Efficiency Add-On Furnace uses up to 30% less wood while providing the same amount of heat. With up to 310,000 BTU, this EPA-certified furnace evenly heats areas up to 2,500 sq. feet. Plus, the included heat sensor controls the blower speed to provide maximum comfort.