HVAC Terms You Should Know

Whether you are an HVAC journeyman, a seasoned HVAC technician, a dispatcher for an HVAC company, or simply a customer, read on to learn the most common HVAC terms you should know.

Air Changes Per Hour (ACH)

Air Conditioner (AC)

Annual Fuel Efficiency Ratio (AFUE)

British Thermal Unit (BTU)

Chiller

Coil

Condenser Coil

Controller

Ductwork

Dehumidifier

Diffuser

Evaporator Coil

Fresh Air Intake

Grille

Heating Coil

Heat Pump

Heat Transfer

Outside Air Temperature (OAT)

Packaged Unit or RTU (Rooftop Unit)

Plenum Space

Radiation

Refrigerant

Seasonal Energy Efficiency Ratio (SEER)

Split System (Zoned)

Subcooling

Thermostat

Variable Air Volume (VAV)