44,000 BTU Low NOx Downflow Communicating Compatible Gas Furnace, Efficiency: 96%, Volts: 120, Hertz: 60, Phase: 1, CFM: 1360, Stage: Two, Speed: Variable, Motor Type: ECM, BTU Input: 44,000, BTU Output: 43,000, Dimensions: 33''H X 17-1/2''W X 27-3/4''D, Weight: 131 lbs ***Propane Conversion Kit: 11K51 (Not Included)*** **Compatible With iComfort Communicating Units**