2 Ton Ultra Low NOx Single Stage Convertible Natural Gas/Electric Packaged Unit, Volts: 208-230, Hertz: 60, Phase: 1, Refrigerant: R410A, Factory Charge: 76 oz, EER: 11, Department of Energy Guide SEER (Range): 14, CFM: 1005, BTU Input: 54,000, BTU Output: 43,800, Cooling BTU: 22,600, Heating BTU: 54,000, Overall Dims: 40-8/9''H X 47-33/50''W X 47-33/50''D, Weight: 408 lbs **Ultra Low NOx Unit is not LP Compatible**