Rheem® Endeavor Premium-Grade Variable Speed Gas Furnace, Classic Series, R951V Model, 70000 Btu/hr Input BTU Rating, 66500 Btu/hr Output BTU Rating, 115 V Voltage Rating, 17 A Amperage Rating, 500 to 1980 cfm Rating, 1/2 hp HP Rating, 95 % AFUE Rating, 746 W Wattage, 1 ph Phase, 60 Hz Frequency Rating, 1 Number of Stages, 4-Way, Multi-Position Configuration, Connection Type: NPT, 1/2 in Connection, Electric Fuel Type, 11 in Dia x 10 in W Blower Size, 34 in H x 21 in W x 29.63 in D Cabinet Dimensions, ECM Motor Type, 5 ton Tonnage, Electronic Ignition System, Direct Spark Ignition Type, 0.25 kPa, Stainless Steel/Steel, 30 to 60 deg F Temperature Rise, Domestic Domestic/Import