100,000 BTU Upflow/Horizontal Gas Furnace, Efficiency: 80, Volts: 115, Hertz: 60, Phase: 1, CFM:2000, Stage: Two, Speed: Variable, Motor Type: ECM, BTU Input: 100,000, BTU Output: 80,000, Dimensions: 33-1/2"H X 21"W X 28-1/2"D, Weight: 124 Lbs, Plenum Opening Dimensions: 19-1/2" X 19-1/2", Propane Conversion Kit: LPM-06 (Not Included), Up To A 5 Year Manufacturer Supported Parts Warranty. Register Your Unit With The Manufacturer For More Details Regional Efficiency Standards Are Now In Effect. Make Sure You Adhere To All National, State, And Local Efficiency Standards In Effect In Your Region.