Rheem® Standard Gas Furnace, R801CA Series, Classic® Model, 50000 Btu/hr Input BTU Rating, 40000 Btu/hr Output BTU Rating, 115 V Voltage Rating, 8 A Amperage Rating, 1305 cfm Rating, 1/2 hp HP Rating, 80 % AFUE Rating, 15 kW Wattage, 1 ph Phase, 60 Hz Frequency Rating, 1 Number of Stages, 3-Way Multi-Position, Horizontal, Upflow Configuration, Connection Type: NPT, 1/2 in Connection, Liquid Propane, Natural Gas Fuel Type, 5 Number of Speeds, 6 mm W x 11 mm D Blower Size, 34 in H x 14 in W Cabinet Dimensions, CTEC Motor Type, Vent Vent, Ducted or Ductless, 6 in Vent Size, 15 A Fuse Rating, 3 ton Tonnage, PlusOne® Ignition System, Direct Spark Ignition Type, 0.9 kPa, Steel, 25 to 55 deg F Temperature Rise