Rheem® Plus Gas Furnace, R801T Series, 125000 Btu/hr Input BTU Rating, 115 VAC Voltage Rating, 15 A Amperage Rating, 2000 cfm Rating, 1 hp HP Rating, 80 % AFUE Rating, 37 kW Wattage, 1 ph Phase, 60 Hz Frequency Rating, Downflow Configuration, Connection Type: 1/2 in NPT, Natural, Propane Gas Fuel Type, 5 Number of Speeds, 11 in Dia x 10 in W Blower Size, 24 in W x 29.56 in D x 34 in H Cabinet Dimensions, Constant Torque ECM Motor Type, 3.5 to 5 ton Tonnage, 40 VA Transformer Rating, Direct Spark Ignition Type, 35 to 65 deg F Temperature Rise