Concord® Constant Torque Gas Furnace, 96G1E Model, 70000 Btu/hr Input BTU Rating, 64000 Btu/hr Output BTU Rating, 120 VAC Voltage Rating, 8.4 A Amperage Rating, 170 to 1720 cfm Rating, 96 % AFUE Rating, 1 ph Phase, 60 Hz Frequency Rating, 1 Number of Stages, Down Flow Configuration, 1/2 in Connection, 16 in H x 17-1/2 in W x 16-3/8 in D Cabinet Dimensions, High Efficiency Blower Motor Type, Vent Vent, Ducted or Ductless, 15 A Fuse Rating, 4 ton Tonnage, 40 VA Transformer Rating, Smooth Ignition Type, Steel, Aluminum, 35 to 65 deg F Temperature Rise