4 Ton Single Stage Convertible Natural Gas/Electric Packaged Unit, Volts: 460, Hertz: 60, Phase: 3, Refrigerant: R410A, Department of Energy Guide SEER (Range): 14, CFM: 1600, BTU Input: 78,049, BTU Output: 64,000, Cooling BTU: 49,000, Heating BTU: 78,049, Overall Dims: 41''H X 44''W X 69''D, Weight: 598 lbs