You want to keep your Indianapolis home warm without having high energy bills. Covering HVAC vents in unused areas might seem like a great way to reduce energy usage. You might also consider doing this to make certain areas warmer. However, you should avoid covering these vents. Keep reading to find out more about why this isn’t a good idea.

Air-Circulation Problems

Closing or covering HVAC vents doesn’t mean heat stops going to them. Your furnace or heat pump will still move heated air to these vents. With nowhere to go, this air can cause problems with air pressure and circulation. This can lead to damage to your heating system. Keep in mind that the return air vent needs to be able to pull air from the area. With the vents closed, this doesn’t happen, resulting in airflow issues.

Heat-Exchanger Damage

The heat exchanger is an important component of your heating system. When you cover HVAC vents, the pressure that builds up can strain this part of your HVAC system. If the heat exchanger develops a crack, this can lead to dangerous carbon monoxide leaks. Keeping vents open throughout your home helps reduce this risk.

Reduced Efficiency

Trying to save money by closing vents can actually result in higher energy bills. Your heating system works less efficiently when one or more vents are covered or closed. To lower your energy bills, make sure your heating system can run efficiently. This involves having routine HVAC maintenance done, changing air filters, and making sure that all vents are unblocked.

Mold or Mildew Growth

Closing or covering vents can make it possible for mildew or mold to grow inside ducts. Covered vents block moisture inside ductwork, allowing mold or mildew to thrive. This can lead to health problems for you and your family while also reducing your indoor air quality (IAQ).

For more advice on using your HVAC system, please contact Mowery Heating, Cooling, and Plumbing. Our heating and cooling experts can answer your questions about HVAC vents and other components.