GRANBY Oil-Fired Warm Air Furnace, 1/2 hp, Input BTU Rating: 119/140/154 MBtu/hr, Output BTU Rating: 66/79/91 MBtu/hr, 1230 cfm, 86 to 86.8 % AFUE Rating, High Efficiency Gas/Oil Burner, Electronic Ignition, Blower Motor, 4 Speed, Chimney Vent, Stainless Steel, 29-3/8 in H x 21-1/2 in W x 53-1/2 in D