100,000 BTU Low NOx Upflow/Horizontal Gas Furnace, Efficiency: 80%, Volts: 115, Hertz: 60, Phase: 1, CFM: 2280, Stage: Two, Speed: Variable, Motor Type: ECM, BTU Input: 100,000, BTU Output: 80,000, Dimensions: 34-1/2''H X 21''W X 28''D ***Propane Conversion Kit: 904914 (Not Included)***