Ducane Split System Heat Pump, High-Efficiency, Series: LYNX 4HP18V, 33400 Btu/hr Heating, 34400 Btu/hr Cooling, 208/230 V 1 ph 60 Hz Power Source, 12 EER, 19 SEER, 9.6 HSPF, 3.3 COP, Inverter Driven Compressor, R-410A Refrigerant, 3/4 in Suction Line, 3/8 in Discharge Line, 1/3 hp Motor, 35 A Fuse, -15 to 125 deg F, Grommet Mounting, Steel, 29.38 in W x 31.25 in D x 33.75 in H Dimensions,