Rheem® Heat Pump, Classic™ Series, 208-230 V Voltage Rating, 20 A Amperage Rating, 234 W Power Rating, 1/5 hp Rating, 60 Hz Frequency Rating, 1 ph Phase, 850 rpm Rotational Speed, 36000 Btu BTU Rating, 4077 cfm Rating, 9 EER Rating, 14.3 SEER Rating, 7.5 HSPF Rating, Scroll Compressor Type, R-454B Refrigerant Type, 3/8 in Liquid Line Size, 3/4 in Suction Line Size, 30 A Fuse Rating, 1-Row, 19-1/2 sq-ft Face Area, 22 FPI Coil Rating, 3 ton Tonnage, 72 dB Sound Level, 2 Number of Stages, 35 in H x 33-3/4 in W x 33-3/4 in D Dimensions