66,000 BTU Low NOx Upflow/Horizontal Gas Furnace, Efficiency: 80%, Volts: 120, Hertz: 60, Phase: 1, CFM: 1355, Stage: Single, Speed: Multi, Motor Type: ECM, BTU Input: 66,000, BTU Output: 53,000, Dimensions: 33''H X 17-1/2''W X 28-3/8''D, Weight: 127 lbs ***Propane Conversion Kit: 11K50 (Not Included)*** ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***