What Happens When You Close Vents in Unused Rooms?

You might have heard of this life hack before — close the vents to your unused rooms, and you’ll save money on your next energy bill. But is it actually true? You may want to learn more before you close vents throughout your home. Don’t Expect to Save Money It’s a tempting idea. If you close the vents to the rooms you don’t use often, then cool air will theoretically only head to the rooms you’d actually like to keep at a refreshing temperature. This means you’ll save money, since you can raise the thermostat a few degrees, safe in the knowledge that your air conditioner won’t have to work as hard to keep you cool. Right? Not really. See, the problem is that closing the vents of some rooms will lead to an increase in pressure in your entire HVAC system. This pressure means that your air handler will have to work even harder to get the air through to the rooms you want to be cooled. The result could actually be an increase in your energy bill. You’ll Pay More for Repairs Increased pressure is also not a good thing because it can lead to another expensive side...

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