HVAC pro Derek Cole explains why blocking floor vents with furniture kills your heating and cooling. When a couch covers a vent, air bounces off the ceiling instead of conditioning the wall, forcing it back into the ductwork and wasting energy.
I have seen, and what you need to be careful of, is when the vents are in the floor, do not put the furniture over the vents. Do not put a couch smack dab against the wall at the return. That will cause a problem. So back up a little bit, give it a little bit of room, and don't put furniture and things like that over the floor grills because it's trying to If it's on the floor, okay, it's supposed to be on an outside wall. So it's trying to condition that wall. So the air is blowing up. I mean, if you were like doing a smoke test, you can actually see it. The air would be going up, hitting the ceiling, and then falling back down to condition the wall. So if you have furniture or something in the way, obviously that can happen. So it's going to affect that room, that situation. It's also going to affect the heating in there itself because it's now starting to push. It's kind of like closing a vent. I think we talked about that before. I know that there's an article on LinkedIn about it. It's kind of like closing the vent. I mean, it's pushing the air right back down to the hole, which cannot be good as well.
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