HVAC and an AC Unit


The HVAC system is a group of components that work together to provide air conditioning, heating, and ventilation for your home. In this post, we’ll discuss what makes up an HVAC unit and how it differs from an AC unit.

Heating and Cooling Systems Are Different

The primary difference between HVAC and an AC unit is that the former provides cooling, while the latter provides heating. If you have a lot of windows in your house, then it’s likely that you’ll need to have both types of systems installed.

HVAC systems use fans to move air around your home or business building. They work by pulling hot air through vents into rooms with lower temperatures and pushing coolant out of them toward higher temperature areas (like kitchens). This helps regulate room temperatures so that everything stays comfortable for everyone inside!

There are several different types of HVAC systems, but the most common ones are split systems and central air. In a split system, each room is controlled by its own unit that can be placed in any corner or location. A central air system works differently; it’s installed in one central location (usually an attic or basement) and sends coolant throughout your home via ducts.

HVAC Control

The HVAC control system is a system that controls the temperature, humidity, and airflow of a building. It’s responsible for making sure that all of your home’s systems work together to keep you comfortable indoors.

The most common type of HVAC is air conditioning, which cools or heats your home by circulating air through vents. An AC unit can be used as either an exterior device (mounted outside) or an interior one (mounted inside). Both types use fans to move hot or cold air around as needed in order to maintain specific temperatures throughout different parts of your space at different times during the day/night cycle.

An HVAC system is made up of multiple components, like the blower motor and the condenser. Each component plays a crucial role in keeping your home comfortable no matter what the weather. The blower motor circulates air through vents, while the condenser works to cool or heat it before returning it back into your living space.

HVAC Building Standards and Energy Efficiency

What’s the difference between HVAC and an AC unit? The answer is simple: HVAC systems are more energy efficient than AC units. When you look at the numbers, it’s obvious why this is so.

HVAC systems use less energy than air conditioning units because they use less electricity to cool your home or office space. If you compare how much electricity it takes to run an average-sized home with both types of heating/cooling system types, you’ll find that an HVAC system uses about half as much electricity as an AC unit does (the average U.S.-sized home consumes about 600-kilowatt hours per month). That means that if your house needs 700 kWh per month for heating/cooling purposes but only 500 kWh from one source—your utility company—you’ve saved money!

An AC Unit Is Simply One Piece of an HVAC System

The AC unit is a component of the HVAC system, but it’s not the only one. The HVAC system includes a variety of components, including:

  • An air handler (also called an extractor fan) that provides outdoor air to your home’s living spaces and cools it down with refrigerant gas before returning the cooled air back into your home’s conditioned space
  • A furnace or heat pump which heats or cools indoor spaces using electricity or natural gas
  • Fans that move warm or cool outside air through ductwork into rooms in which people will be spending time

HVAC is a system, while an AC unit is a single component.

There are two main differences between HVAC and AC units:

  • HVAC is a system, while an AC unit is a single component.
  • An AC unit cools the air by removing heat.

HVAC systems are also responsible for filtering the air that’s circulated through your home. Filters remove dust, pollen, and other allergens from the air so that you don’t have to worry about suffering an asthma attack or getting sick when it’s time to turn on the AC in the summertime air conditioning systems are designed to operate at peak efficiency when all of these components work together in a balanced system.

If any one component is malfunctioning or broken, it can lead to inefficient performance and higher energy bills addition to being more energy efficient, HVAC systems are also more efficient at heating and cooling your home than AC units. While an AC unit cools your entire house by blowing the cold air through a series of ducts throughout the building, an HVAC system uses a central unit that pumps warm or cool air into your home using vents instead of ductwork.

This allows for better efficiency because only one source needs to be used—the central unit—instead of multiple ones like in AC systems HVAC system contains multiple components that work together to cool and heat the air in your home…!


It’s important to remember that an HVAC system is a complex one, and it can be difficult to keep track of all the parts. This is why it’s important to have your HVAC contractor do the work for you. Your AC unit will have a much easier time working properly if someone else knows what they are doing!

We hope you found this blog post on What’s the Difference Between HVAC and an AC Unit? useful. Be sure to check out our post on 5 Tips for Checking an HVAC System When Buying a New Home for more great tips!

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