The Heil® PGR5 small package gas heating/electric cooling system and PAR5 small package air conditioning system are now available in 2-, 2.5-, 3-, 3.5-, 4-, and 5-ton cooling capacities, featuring single- and three-phase electrical options for use in residential or commercial applications. The units are Energy Star®-qualified and offer high energy-efficiency ratings. The package units include tin-plated evaporator coils (PGR5 and PAR5) and stainless steel heat exchangers (PGR5 only) for durability and comfort. The stainless steel and tin-plated designs are corrosion-resistant for long system life. They can achieve up to 16 SEER, up to 12.5 EER, and up to an 80.1 percent AFUE ratio (PGR5 only). The package units include a two-stage Copeland Scroll™ compressor, which operates most of the time in the quieter, lower stage to improve comfort.