Energy Efficiency

Does Closing Vents in an Unused Room Save Energy? This and other common HVAC misconceptions

Mar 29, 2023

As homeowners, we rely on our heating, ventilation, and air conditioning (HVAC) systems to keep our homes comfortable year-round. However, there are many misconceptions about HVAC systems that can lead to inefficient operation and unnecessary expenses. Here are some common HVAC misconceptions and the truth behind them.

1. "Closing vents in unused rooms will save energy"

Many people think that closing vents in unused rooms will save energy, but this actually causes your HVAC system to work harder. When you close vents, it creates pressure imbalances in your ducts, which can lead to leaks and damage to your system. It’s better to keep all vents open and use a zoning system to control temperatures in different areas of your home.

2. "A larger HVAC system is always better."

Bigger is not always better when it comes to HVAC systems. An oversized system can lead to short cycling, which means it turns on and off frequently, wasting energy and reducing its lifespan. It’s important to have your HVAC system properly sized for your home by a professional.

3. "Routine maintenance isn't necessary"

Some homeowners believe that their HVAC system doesn’t need regular maintenance, but this couldn't be further from the truth. Routine maintenance is essential to keep your system running efficiently and prolong its lifespan. Neglecting maintenance can lead to costly repairs and a shortened lifespan for your system.

4. "Changing the air filter once a year is enough."

Changing your air filter regularly is one of the easiest and most important things you can do to maintain your HVAC system. However, changing it once a year is not enough. A dirty air filter restricts airflow, which makes your system work harder and can lead to breakdowns. It’s recommended to change your air filter every 1-3 months, depending on usage.

5. "Ceiling fans cool a room."

Ceiling fans don't actually cool a room, they only circulate air. While they can make a room feel cooler by creating a breeze, they don't actually lower the temperature. It's important to use ceiling fans in conjunction with your HVAC system to enhance its efficiency, not as a substitute.

By understanding these common HVAC misconceptions, homeowners can take better care of their systems and save money on energy bills and repairs. For more information on how to properly maintain your HVAC system, see our blog post about maintenance or contact Cooling Cloud HVAC today!