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Old 02-24-2009, 09:19 AM   #1
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Hole in return duct


I found this hole in a joist bay that is being used for a return vent (unfinished basement area above furnace). My guess is they were originally going to run the gas pipe thru this hole.. but ended up enclosing it for the return vent. They subsequently suspended the gas line below to the left. I feel this hole should have been covered up in some way so that it does not degrade the return vent from pulling air via the living areas upstairs. Am I correct in this line of thought? If so, what would be the proper way to cover this hole?
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Old 02-24-2009, 09:42 AM   #2
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Hole in return duct


Probably got busted under 404.1 (not in or through a circulating air duct) and had to relocate the line.

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Old 02-24-2009, 09:59 AM   #3
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Hole in return duct


The size of whole wont affect the return system. I'd cover it up with a piece of sheet metal, if that isn't handy then you could nail a piece of plywood over it.
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Old 02-24-2009, 11:44 AM   #4
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Hole in return duct


They did the right thing by removing what was running through there, but now you need to cover that hole. It may not be affecting you much, but then there is that idiom about death by 1000 cuts.
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Old 02-24-2009, 02:34 PM   #5
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Hole in return duct


it'll suck dust that Will eventually pervade the whole area.

Piece of foil tape or expanding foam insulation will do the trick
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Old 02-24-2009, 04:42 PM   #6
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Hole in return duct


A strip of lath.
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Old 02-24-2009, 04:52 PM   #7
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Hole in return duct


They still make that? Thought it went the way of wet plaster?
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Old 02-24-2009, 05:28 PM   #8
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Hole in return duct


Plenty of furring lath around.
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Old 02-24-2009, 05:33 PM   #9
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Hole in return duct


Firring I know, lath I always associated with cool old homes from the 1920 and 1930 era.

Just a regional thing I guess.
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Old 02-24-2009, 07:14 PM   #10
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Hole in return duct


Your thinking of plaster and lath.

Its still around too. Just not as common.
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Old 02-24-2009, 09:51 PM   #11
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Hole in return duct


Looks Like a 1893 silver dollar and a little epoxy should do it!

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Old 02-24-2009, 11:24 PM   #12
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Hole in return duct


A birdie would fill that hole nicely.

or a scrap piece of plywood, or a blank 4x4 cover.

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Old 02-25-2009, 06:35 AM   #13
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Hole in return duct


If you happen to have a matching hole saw you can cut your own plug and drive it in. A scrap of foam board works nicely for this.
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Old 02-25-2009, 10:37 AM   #14
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Hole in return duct


All this advice just to cover a friggin' hole/

You guys got to much time on your hands.

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