HVAC Industry Terms

  • HVAC

    Heating, Ventilation, and Air Conditioning

  • SEER

    Seasonal Energy Efficiency Ration is the rating of the system’s performance during a season, wherein the use and load of the system is at its peak.

  • EER

    Energy Efficiency Ratio

  • HSPF

    Heating Seasonal Performance Factor

  • AFUE

    Annual Fuel Utilization Efficiency

  • AHRI(ARI)

    Air Conditioning, Heating, and Refrigeration Institute

  • HERS

    Home Energy Rating System. This state regulated program is now required by law and enforced by third-party (not the hired contractor) organizations to test the overall efficiency of your home, rating it on a scale of 0-250 in compliance with Title 24 Building Energy Efficiency Standard’s prescriptive requirements.