44,000 BTU Upflow/Horizontal Gas Furnace, Efficiency: 97%, Volts: 120, Hertz: 60, Phase: 1, CFM: 1370, Stage: Two, Speed: Variable, Motor Type: ECM, BTU Input: 44,000, BTU Output: 43,000, Dimensions: 33''H X 17-1/2''W X 28-1/2''D, Weight: 120 lbs ***Propane Conversion Kit: 11K48 (Not Included)***