Short advisory video (speaker: Derek Cole) arguing that homeowners should not close HVAC vents. The speaker claims closing vents does not save energy and can force the HVAC unit to work harder as air 'backs up' into the system; he recommends keeping vents open and unobstructed by drapes or furniture to maintain cooling.
Here's my controversial take on closing vents in your home. You should never close vents in your home. The air in your home, the H Vac unit, the air distribution system, is made and designed to keep the home cool. You have the room that you're not using. You think closing the vent will save you energy. It's not saving you energy. It's not doing anything but potentially causing a problem because that air is going to try to back up into the system and the units are going to have to work harder to push it back out because you're in this constant push and pull to get the air where it needs to go. So leave vents open and leave vents unobstructed from drapes furniture. Leave it clear so you can have a cool summer.
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