Terminology - Progressive Heating, Air and Plumbing Skip to main content
Understand the complex world of HVAC and plumbing by learning common terminology used in the industry.

HVAC Terminology

Navigating the world of HVAC can be overwhelming with the abundance of technical jargon and terminology. At Progressive Heating, Air and Plumbing, we believe that understanding these terms is crucial for making informed decisions about your home’s comfort and safety. Our team is dedicated to demystifying HVAC terminology, providing you with clear explanations and insights. Let us be your guide in unraveling the complexities of this industry, making your experience with us as smooth and informed as possible.

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HVAC Terminology - Want To Know What All Those Confusing Terms Mean? Find Out Here!

  • Air Distribution System
    Any system of ducts, plenums and air handling equipment that circulates air within a space[s].
  • Capacitor
    A device to start a motor or compressor [or to keep it running once it has started – may have one indoor and one outdoor].
  • Compressor
    The pump that moves refrigerant from the indoor to outdoor unit [through coils] and back. The compressor is also known as the ‘brain’ of the system.
  • Condensate
    The liquid that condenses due to the lowering of its temperature to the saturation point Condenser [outdoor] coil – Uses refrigerant and either releases or collects heat from the outside air.
  • Condenser Fan
    Distributes air over the condenser.
  • Condensing Unit
    A refrigerating machine consisting of one or more compressors and other accessories that work together to cool your home.
  • Contactor
    In the condenser, the main switch that turns the outdoor unit on.
  • Dehumidifier
    Machine that removes moisture from the air.
  • Duct
    A tube or conduit utilized for conveying air.
  • Duct System
    A continuous passageway for the transmission of air that includes ducts, duct fittings, dampers, plenums, fans and accessory air-handling equipment and appliances.
    Eco-friendly systems – more energy efficient that help to lower utility bills and improve overall air quality – must be ENERGY STAR to qualify for tax credit.
  • Furnace
    A completely self-contained heating unit that is designed to supply heated air to spaces remote from or adjacent to the appliance location.
  • Heat Exchanger
    A device that transfers heat from one medium to another.
  • Heat Pump
    A refrigeration system that extracts heat from one substance and transfers it to another portion of the same substance or to a second substance at a higher temperature for beneficial purposes.
  • HVAC
    Heating, Ventilation and Air Conditioning.
  • Humidifier
    Machine that adds moisture to the air.
  • NATE
    North American Technical Excellence.
  • Package Unit
    A heating and a/c unit in one cabinet. This unit can either be found beside your home, in the attic or on the roof.
  • Return Air
    Air removed from an approved conditioned space or location and recirculated or exhausted.
  • SEER
    Seasonal Energy Efficiency Ratio – The higher the SEER, the more efficient the unit and lower overall utility bills.
  • Split System
    An outdoor unit [condenser or heat pump] and indoor unit [furnace with coil or air handler].
  • Supply Air
    The air delivered to each or any space supplied by the air distribution system or the total air delivered to all spaces supplied by the air distribution system.
  • Ventilation
    The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from any space.
  • Zoning System
    Sections the home into different zones so each can be controlled separately – meant for comfort more so than energy efficiency.
Still have questions? Call us today! 770-692-4138
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Progressive Heating, Air and Plumbing
9 Tower Place
Newnan, GA 30263

(770) 692-4138

License #:
CN006739 – State of Georgia


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(770) 692-4138