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What’s the Difference Between an HVAC and an AC System?

 HVAC vs AC system Hoschton, GA

People use the words “HVAC” and “AC” interchangeably, especially in informal conversation. However, while the two terms are similar, they don’t quite mean the same thing. Learn more about the main differences between HVAC and AC from Clark’s Heating and Air, your go-to service provider for HVAC installation in Hoschton, GA.


HVAC stands for heating, ventilation, and air conditioning. If you have a central HVAC system in your home, then you have both a heating unit and a cooling unit. The heating unit would most likely be in the form of a furnace, which could be either gas or electric.

The ventilation part of HVAC simply refers to the ductwork system in your home used by both your heating and cooling units. You probably don’t think of the ventilation part of your system that much, but it’s just as important as the cooling and heating devices. A professional company like ours will include the ductwork when performing HVAC maintenance.


The “AC” part of HVAC refers to, of course, the air conditioner. Window air conditioner units aren’t typically considered part of HVAC as they work independently of a central HVAC unit. Portable ACs aren’t part of an HVAC system, either.

What About Heat Pumps?

Some homes have heat pumps as part of the central HVAC. Heat pumps are unique in that they offer both heating and cooling from one device. Instead of having a furnace that warms your home and an AC that cools it, the heat pump does both. We provide heat pump installation and replacement as part of our HVAC services.

Whether you are planning to install an HVAC or AC system in your home, it’s best to work with a professional. For quality HVAC repair and other services in Hoschton, GA, you can rely on the experienced team at Clark’s Heating and Air. Contact us today to schedule an appointment.

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