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Should You Close HVAC Vents in Unused Rooms?
The truth behind this damaging myth.Written by Tessie Devlin
Edited by Jamie Cesanek
Last updated 10/27/2023
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Key Points
- Closing HVAC vents in unused rooms may damage your system, leading to costly repairs.
- Your heater or air conditioner produces the same amount of air regardless of how many open or closed vents you have.
- To keep air flowing through your home and save on electricity bills, you shouldn’t close more than 75% of your vents.