Rheem® Heat Pump, Select™ Series, 208-230 V Voltage Rating, 13 A Amperage Rating, 146 W Power Rating, 1/7 hp Rating, 60 Hz Frequency Rating, 1 ph Phase, 1075 rpm Rotational Speed, 18000 Btu/hr BTU Rating, 2401 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, 20 A Fuse Rating, 1-Row, 10.9 sq-ft Face Area, 22 FPI Coil Rating, 1.5 ton Tonnage, 73 dB Sound Level, 1 Number of Stages, Steel, 25.17 in H x 29.543 in W x 29.543 in D Dimensions