XL15c Heat Pump Heat Pump Up to 15.2 SEER2 Up to 7.5 HSPF2 XL15c Gas/Electric Gas Electric Up to 15.2 SEER2 Up to 81 AFUE XR13.4c Air Conditioner Air Conditioner Up to 13.4 SEER2 XL15c Dual Fuel Dual Fuel Up to 12.2 SEER2 Up to 7.5 HSPF2 Up to 81 AFUE XR13.4c Gas/Electric Gas Electric Up to 13.4 SEER2 Up to 81 AFUE XR13.4c Heat Pump Heat Pump Up to 13.4 SEER2 Up to 7 HSPF2 Priority 15 Gas/Electric Gas Electric Up to 15.2 SEER2 Up to 81 AFUE Priority 15 3PH Gas/Electric Gas Electric Up to 15.2 SEER2 Up to 81 AFUE Choice 14 Gas/Electric Gas Electric Up to 14.3 SEER2 Up to 81 AFUE Choice 14 3PH Gas/Electric Gas Electric Up to 14.3 SEER2 Up to 81 AFUE Priority 15 Heat Pump Heat Pump Up to 15.2 SEER2 Up to 8.1 HSPF2 Priority 15 3PH Heat Pump Heat Pump Up to 15.2 SEER2 Up to 8.1 HSPF2 Choice 14 Heat Pump Heat Pump Up to 13.6 SEER2 Up to 7 HSPF2 Choice 14 3PH Heat Pump Heat Pump Up to 13.6 SEER2 Up to 7 HSPF2 Priority 15 Dual Fuel Dual Fuel Up to 15.2 SEER2 Up to 8.1 HSPF2 Up to 81 AFUE Choice 14 Air Conditioner Air Conditioner Up to 14.3 SEER2