Nortek Global HVAC manufactures Gibson heat pumps. Until January 2015, Nortek Global HVAC went by the name Nordyne. They license the Gibson name for a range of HVAC products, including heat pumps, air conditioners and gas furnaces.
Gibson offers two heat pumps. One is a single-stage heat pump with a Seasonal Energy Efficiency Ratio of 14 and a Heating Seasonal Performance Factor of 8.5. The other is a two-stage heat pump with a SEER of 16 and a HSPF of 9. The SEER measures how efficiently the pump cools a home, while the HSPF measures how efficiently it heats a home.