A short instructional segment advising homeowners not to block floor HVAC vents or place furniture directly against return vents on outside walls. The speaker explains that blocked vents disrupt airflow — warm/cool air should rise, hit the ceiling, and circulate down to condition the wall — and recommends leaving space around vents and returns. The speaker also references a smoke test as a way to observe airflow.
What 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.
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