PCE4 Air ConditionerUp to 13.4 SEER2 PCE6 Air ConditionerUp to 15.2 SEER2 PCG4 Gas ElectricUp to 13.4 SEER2Up to 81 AFUE PCG4 Ultra-Low NOx Gas ElectricUp to 13.4 SEER2Up to 81 AFUE PCG6 Gas ElectricUp to 15.2 SEER2Up to 81 AFUE PHE4 Heat PumpUp to 13.4 SEER2Up to 7 HSPF2 PHE6 Heat PumpUp to 15.2 SEER2Up to 7.2 HSPF2 PHG4 Dual FuelUp to 13.4 SEER2Up to 7 HSPF2Up to 81 AFUE PHG6 Dual FuelUp to 15.2 SEER2Up to 7.2 HSPF2Up to 81 AFUE
