4 Ton Low NOx Single Stage Convertible Natural Gas/Electric Packaged Unit, Volts: 208-230, Hertz: 60, Phase: 1, Refrigerant: R410A, Factory Charge: 107 oz, EER: 11, Department of Energy Guide SEER (Range): 14, CFM: 1775, BTU Input: 108,000, BTU Output: 87,500, Cooling BTU: 45,500, Heating BTU: 108,000, Overall Dims: 44-8/9''H X 56-3/23''W X 47-33/50''D, Weight: 560 lbs ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***