Best way to seal off retired heat register

joe71March 29, 2011

We are doing a kitchen remodel, and the new configuration will have a cabinet in front of our heat register. So, our installer made a new floor register for us using some flex duct. The original register needs to be sealed off, so the installer put a piece of drywall over the opening. However it seems to be leaking a bit (into the wall and basement)and I am wondering if there is a better way to seal off this duct opening (the duct opening is in the wall, at the base of the wall). Any ideas?

Thanks in advance.

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Do you have access from below?

Find the line feeding the old duct and remove it, then close off the hole left in the remaining duct.

    Bookmark   March 29, 2011 at 4:05PM
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Echo what was said above. Otherwise it sounds like the duct leading to the old register is still trying to deliver air?

    Bookmark   March 29, 2011 at 11:49PM
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maybe just air leakage between basement & kitchen

    Bookmark   March 30, 2011 at 5:45PM
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Thanks brickeyee. That makes sense.
Another question: What is the best way to seal off the hole in the duct, once I remove the feeder? Should I just tape a piece of sheetmetal over the hole?

    Bookmark   March 31, 2011 at 3:23PM
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