Up to 22 SEER2Up to 10.5 HSPF2Up to 18.5 SEER2Up to 9 HSPF2Up to 42.5 SEERUp to 15 HSPFUp to 18 SEER2Up to 9.8 HSPF2Up to 17 SEER2Up to 8.1 HSPF2Up to 15.2 SEER2Up to 8.1 HSPF2Up to 15.2 SEER2Up to 8.1 HSPF2Up to 15.2 SEER2Up to 8.1 HSPF2