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Should You Close HVAC Vents in Unused Rooms?
The truth behind this damaging myth.Written by Dominique Sabins
Edited by Jamie Cesanek
Last updated 10/24/2024
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Key Points
- Closing HVAC vents in unused rooms may damage your HVAC system, leading to costly repairs.
- Your heating or cooling system produces the same amount of air regardless of how many closed vents you have.
- You shouldn’t close more than 75% of your vents if you want to keep air flowing through your home and save on electricity bills.