Will Closing Vents in Unused Rooms Lower Utility Bills?

February 18, 2019

Here in Texas, energy costs can be high for homeowners in the summer. Some people believe it is a good idea to save energy by closing off vents in unused rooms. While this seems like a logical idea, the strategy can actually be very costly and lead to major damage in your HVAC system. Why Closing Vents to Unused Rooms Does Not Save Money Your HVAC unit relies on a certain air pressure being able to circulate through the system. When you close off some air vents, higher than normal air pressure is created. Other parts of the unit attempt to compensate for the air pressure being too high. Your HVAC unit is designed to send the same cool or warm air volume through despite the fact that some of the vents are closed. Thus, no energy is saved by closing vents. How Closing Too Many Vents Can Harm Your HVAC System Since other parts of the HVAC system try to compensate for the high air pressure, this can cause costly damage to your system. Most people have HVAC units with PSC blowers. These blowers detect the amount of airflow in the system. They are designed to reduce the airflow...

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