2.5 Ton Single Stage Convertible Natural Gas/Electric Packaged Unit, Volts: 208-230, Hertz: 60, Phase: 1, Refrigerant: R454B, Factory Charge: 2 lbs 12 oz, EER2: 11, Department of Energy Guide SEER2 (Range): 13.4, CFM: 1109, BTU Input: 60,000, BTU Output: 48,000, Cooling BTU: 28,400, Heating BTU: 60,000, Overall Dims: 46-7/16''H X 50-11/16''W X 35-1/16''D, Weight: 432 lbs ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***