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Which Way Should Vent Covers Face

What Is An Air Supply Vent?

An air supply vent is the opposite of an air return vent—its job is to supply your home with air, either or heated or cooled, from the HVAC system or furnace and through the ducts to the vents. These types of vents can be found on the floor, ceiling, or wall of almost every room in a home to provide consistent airflow throughout.

Your air supply vents help your heating and cooling systems work more efficiently. Check all your vents regularly to make sure they are clean, unobstructed, and open. Closing supply vents throws your heating and cooling system off balance, creates airflow problems, and makes the system work harder. That’s why it’s better to keep all the vents open for optimized airflow and energy efficiency. If you find there are rooms you don’t need heated or cooled as much, talk to your HVAC specialist about zoning your system to save energy.

Speaking of efficiency, you should clean your air ducts regularly to help keep your system running at its peak. Not only do dirty air ducts contribute to asthma and other illnesses, but they can also increase energy costs by up to 30%. Home air ducts should be cleaned every three to five years for best results.

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What’s The Difference Between A Vent Cover And Vent Register?

The difference between a vent cover and vent register is functionality. While both work to prevent larger bits of debris from entering your air ducts while still allowing for proper airflow, only a vent register has the ability to change airflow direction or close the vent partly or completely with the use of a damper—a small lever that can move back and forth.

Whether you choose a vent cover or a vent register is entirely up to you. There are advantages to vent covers for interior design, as they offer a simpler, clean look. However, vent covers don’t allow you to stop, limit, or redirect airflow. This may not be a deal breaker though, since as we mentioned earlier, it’s more efficient to keep all vents open.

Why Are Air Return Vents Important?

Air return vents are essential to your HVAC system. They are what pull air from the home, return it to the system, filter it, and help maintain comfortable temperatures throughout your house. They also help remove excess moisture from the air, thus preventing your home from feeling muggy or dank.

Unlike most vents and ducts, you can clean your HVAC air return vents yourself. All you have to do is remove your vent cover and either vacuum or wipe it clean. Then, vacuum out any accessible debris inside the vent. This will help your air return vent maintain optimal function.

Where Should Return Air Vents Be?

Air return vents are often located near the center of a home, generally with one return air vent per floor. This allows the air to circulate efficiently throughout the home and back to the HVAC system. Return air vents are usually found in the lower wall of a room or hallway. Ideally, your return air vents and supply vents should be on opposite sides of the space. Otherwise, you may be pulling some of the heated or cooled air back into the system before it has a chance to circulate.

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