Luxaire Packaged Equipment PCE4Up to 13.4 SEER2 PCE6Up to 15.2 SEER2 PCG4Up to 13.4 SEER2Up to 81 AFUE PCG4 Ultra-Low NOxUp to 13.4 SEER2Up to 81 AFUE PCG6Up to 15.2 SEER2Up to 81 AFUE PHE4Up to 13.4 SEER2Up to 7 HSPF2 PHE6Up to 15.2 SEER2Up to 7.2 HSPF2 PHG4Up to 13.4 SEER2Up to 81 AFUEUp to 7 HSPF2 PHG6Up to 15.2 SEER2Up to 81 AFUEUp to 7.2 HSPF2