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klein 01-07-2009 07:10 AM

Cold air return
I have at least a one inch gap under my bedroom door. I was planning on cutting in a cold air return in the wall but was wondering if the gap is letting enough air back through already. The furnace has a central cold air return in the basement hallway and the plan was to put in a "pass through" vent in the bedroom wall. It's been functioning alright w/o it so far but I don't know if I should still cut a hole in my wall if I've got this huge gap under the door.

Garasaki 01-07-2009 09:09 AM

The gap under the door will serve you fine. In fact that's one of the reasons it's like that.

The problem with a passthru vent is that it will allow sound to pass right thru too, which is usually not a good thing.

I would be inclined to suggest, if it ain't broke, don't fix it.

PS Oh yeah, the whole reason I clicked on your thread, was to point out that "Cold Air Return" is a bit of a misnomer and a personal pet peeve of mine. It's much more accurate to leave off the "cold air" bit and just call it return.

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