Search Search Search Day & Night Series Day & Night Series Performance Series (6)QuietComfort® Series (3) Packaged System Type Packaged System Type Air Conditioner (3)Gas Electric (3)Heat Pump (3) Sort by SEER2 Sort by SEER2 Sort by SEER2High to LowLow to High SEER2 Value SEER2 Value Reset Sort by HSPF2 Sort by HSPF2 Sort by HSPF2High to LowLow to High HSPF2 Value HSPF2 Value Reset ENERGY STAR® ENERGY STAR® Yes (3)No (6) PAR5 Air ConditionerUp to 16 SEER2 PGR5 Gas ElectricUp to 16 SEER2Up to 81 AFUE PHR5 Heat PumpUp to 15.5 SEER2Up to 7.5 HSPF2 PDD4 Gas ElectricUp to 13.4 SEER2Up to 6.7 HSPF2Up to 81 AFUE PHD4 Heat PumpUp to 13.4 SEER2Up to 6.7 HSPF2 PHJ4 Heat PumpUp to 13.4 SEER2Up to 6.7 HSPF2 PGD4 Gas ElectricUp to 13.4 SEER2Up to 81 AFUE PAD4 Air ConditionerUp to 12.4 SEER2 PAJ4 Air ConditionerUp to 13.4 SEER2