88,000 BTU Low NOX Communicating Compatible Downflow Gas Furnace, Efficiency: 96%, Volts: 120, Hertz: 60, Phase: 1, CFM: 2180, Stage: Two, Speed: Variable, Motor Type: ECM, BTU Input: 88,000, BTU Output: 85,000, Dimensions: 33"H X 21"W X 29-1/4"D ***Propane Conversion Kit: 11K51 (Not Included)*** ***Compatible With IComfort Communicating Units***