HVAC Glossary
Common HVAC terms in one convienent place.
Look up definitions to make learning fast and easy.
AC Recharge
AC RefrigerantAn AC recharge is when an HVAC professional changes or refills the refrigerant that cools warm air as it passes through your HVAC system.
AHRI Certification
HVAC CertificationAHRI is the Air Conditioning, Heating, and Refrigeration Institute. AHRI is a trade association that represents HVAC equipment manufacturers as well as manufacturers of water heating and commercial refrigeration equipment.
Air Purifier
Air QualityAn HVAC air purifier is an air cleaning unit that connects to your home’s HVAC system. Also known as an air cleaner, air purification systems vastly improve your indoor air quality.
Air Conditioner
Air ConditionerAir conditioners remove heat and humidity from the air in your home and place it outside to reach your desired indoor temperature. Central AC cools your entire home, while ductless AC cools just one portion or room in your home.
Air Filter
Indoor Air QualityAir filters are installed in HVAC systems to remove dust, dander, allergens, and other harmful particles from the air in your home. You can change and maintain air filters on your own.
ASHRAE Certification
HVAC CertificationASHRAE certifications are credentials earned by professionals who have demonstrated their expertise and knowledge in heating, ventilation, cooling, or refrigeration. Sponsored by the American Society of Heating, Refrigerating, and Air Conditioning Engineers.
Air Handler
Air HandlerAir handlers circulate air throughout your home to maintain your desired temperature. They’re typically found inside the home and paired with a heat pump.
AFUE
Energy EfficiencyAnnual Fuel Utilization Efficiency (AFUE) measures how efficiently a furnace converts fuel to energy. The higher the AFUE rating, the more efficient the furnace.
Getting Started Guide
Learn helpful HVAC tips and tricks before you purchase your system.Repair or Replace
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