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Thread: Noisy duct work

  1. #1
    Join Date
    Oct 2011
    Posts
    36

    Hmm Noisy duct work

    I have finally found the duct work that makes noise when the fan on the furnace shuts off. It is found just above the actual furnace and would be a pain to take out. The sheet metal buckles when fan is on and then retracts when fan shuts off and makes a bang noise. My question is, can i crease the metal somehow with out taking it out ??? or is there another way of keeping the metal from buckling without creasing the metal? any tricks of the trade

    Thanks

  2. #2
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,763
    screw a piece of angle metal across the popping section.

  3. #3
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,754
    Quote Originally Posted by t527ed View Post
    screw a piece of angle metal across the popping section.
    X2

  4. #4
    Join Date
    Oct 2011
    Posts
    36
    The ductwork is right where the air conditioning condenser (I hope i got the name right ???)is located above the furnace, is there a chance a screw could cause damage?? could it be crazy glued on ??

  5. #5
    Join Date
    Jul 2007
    Location
    Mount Airy, MD
    Posts
    7,281
    Thread relocated to AOP

  6. #6
    Join Date
    Jan 2001
    Location
    Pamnyra VA.
    Posts
    710
    Identify what is causing the problem.you're only band aiding an underlying problem.

  7. #7
    Join Date
    Oct 2011
    Posts
    36
    Quote Originally Posted by skibme View Post
    Identify what is causing the problem.you're only band aiding an underlying problem.
    When ductwork was installed it was not cross creased on the one side like the other 3 sides therefore it now flexes.

  8. #8
    Join Date
    Jul 2007
    Location
    Delaware
    Posts
    3,824
    How long has it been installed?
    Always here

  9. #9
    Join Date
    Oct 2011
    Posts
    36
    Quote Originally Posted by energy star View Post
    How long has it been installed?
    A little over a year

  10. #10
    Join Date
    Jul 2007
    Location
    Delaware
    Posts
    3,824
    Did it make the noise before the new system was installed? Or is this a new house?
    Always here

  11. #11
    Join Date
    Oct 2011
    Posts
    36
    Quote Originally Posted by energy star View Post
    Did it make the noise before the new system was installed? Or is this a new house?
    Actually this is a new piece of ductwork that was installed when new furnace was installed. I'm not sure what it is called but it is the ductwork that the evaporator coil sits in ??

  12. #12
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,766
    Plenum.

    Post pic.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  13. #13
    Join Date
    Jul 2007
    Location
    Delaware
    Posts
    3,824
    Air flies out your supply vents doesn't it?
    Always here

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