1.5 Ton Two Stage Geothermal Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Config. Horizontal, Return Air Option: Left Return, EER: 15.9, Stage: Two, Motor Type: ECM, Refrigerant: R410A, Metering Device: TXV, Factory Charge: 43 oz, Water Loop - Cooling BTU: 19,600/Heating BTU: 22,000, Ground Water - Cooling BTU: 22,300/Heating BTU: 18,200, Ground Loop - Cooling BTU: 20,200/Heating BTU: 14,100, Connection Size: 1", Dimensions: 18''H x 23''W x 47''D, CFM: 600 Weight: 158 lbs