Duct system

Discussion in 'HVAC Heating & Cooling' started by Suzcc, Sep 29, 2011.

  1. Suzcc

    Suzcc New Member

    Messages:
    1
    Location:
    Ma
    I had my duct work insulated. The seams were sprayed with a product by Dow - called great stuff for gaps and cracks, and then the ducts were wrapped with insulation. Since then, I can't use the system due to a terrible chemical smell when it comes on. I called Dow and they said the product max temperature rating is 240 degrees. The insulation company tells me this is not the problem. Can you tell me if it is the problem?
    Thanks for your help.
    S D
    Last edited by a moderator: Sep 29, 2011
  2. BobL43

    BobL43 DIY Senior Member

    Messages:
    1,786
    Location:
    Long Island, NY
    smacks of
    AFLAC
  3. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,841
    Location:
    NW Ontario, Canada
    As far as I'm concerned, "Great Stuff" is the wrong stuff to use for duct sealant. Google for low VOC duct sealant mastic.
  4. TJanak

    TJanak New Member

    Messages:
    154
    Location:
    South TX
    Is wrapping ducks with insulation like wrapping jalapenos with bacon?
  5. BobL43

    BobL43 DIY Senior Member

    Messages:
    1,786
    Location:
    Long Island, NY
    now I'm hungry.
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