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Should I Close Vents in Unused Rooms?

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When you’re searching for ways to save energy at home, one common tip you might come across is to close the supply vents in rooms that you don’t use very often. Although this might seem like a good idea at first, the truth is that closing off supply vents can lead to many negative consequences, including actually raising your monthly utility bills. Today we’re going to address this common misconception by answering the question, “Should I close vents in unused rooms?”

Why closing vents in unused rooms seems like a good idea

In theory, closing vents in unused rooms seems like a good idea. By closing off the vents in a room, you’d expect that cool air would skip that room and be delivered to the spaces that need it instead. As a result, your air conditioner would be able to focus its energy on only cooling rooms that you occupy, which would decrease the amount of work it would have to do. But is that really what happens?

What actually happens when you close vents in unused rooms?

The truth is that closing off the vents in unused rooms can lead to some unintended consequences. You see, air conditioners are designed to deliver a specific amount of air based on your home’s size and specifications. Supply and return vents are strategically placed so that the amount of air that comes out of your supply vents is equal to the amount of air that is sucked in by your return vents. If you close off the vents in a room, you throw off the intended pressure balance that your system is designed to operate under, which can lead to the effects below.

The side effects of closing vents in unused rooms

If you have any questions about closing vents in unused rooms, or if you’d like a cooling system serviced or installed in your home, contact Hydes, your Indio, CA, air conditioning contractor.

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