ARMSTRONG AIR® Gas Furnace, Model: A97MV, Input BTU Rating: 90000 Btu/hr, Output BTU Rating: 85000 Btu/hr, 120 VAC, 10.1 A, 693 to 1771 cfm, 97 % AFUE Rating, 1 ph, 60 Hz, 2 Stages, Configuration: Horizontal/Up Flow, 1/2 in Connection, 19-1/2 in H x 21 in W x 19-7/8 in D Cabinet, ECM Motor, Vent, Ducted or Ductless: Vent, 15 A Fuse Rating, Tonnage: 4 ton, 40 VA Transformer, Stainless Steel, 35 to 80 deg F Temperature Rise