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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.

Clark Tips


  • Seasonal tune-ups on your AC Unit will help save money.
  • Make certain your Air Conditioner has plenty of free space around the unit to support easy airflow.

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