Results 1 to 7 of 7
  1. #1
    Just wondering what you guys are using to seal around these components? Here in my area about 80% of the residential units are installed as upflow with the units in a utility closet in the garage. The return is under the slab and the supply is ran using fiber board mains with flex duct branches in the attics. Anyhow, most of the installers are using alum. foil tape to seal around the joints on the furnace, coil, filter and duct in the utility closet. It just doesn't look right having a high dollar system all taped up.

  2. #2
    Join Date
    Jan 2006
    Posts
    214
    try duct sealant or high heat silicone,the foil tape deteriorates over time and looks like a hack installed it.

  3. #3
    Join Date
    Sep 2004
    Location
    Memphis
    Posts
    2,502
    we only use clear silicone on the furnace, coil, & plenums. If we're running round pipe then we'll duct tape the joints with rated tape. If its square duct, we pooky it.
    Life is like a jar of jalapenos. What you do today might burn your ass tomorrow.

  4. #4
    Thanks guys, I was also thinking Silicone or RTV would be a good option but was just a little concerned about the vapors that it might produce using it around the furnace. I guess that it must not be an issue.

  5. #5
    Join Date
    Jan 2006
    Posts
    52
    Have not heard it called pooky in years,does that mean i'm getting old

  6. #6
    Join Date
    Nov 2005
    Location
    Orange County Calif
    Posts
    128
    Duct sealer here or (pookie) lol

  7. #7
    Join Date
    May 2002
    Location
    Houston Texas
    Posts
    6,323
    Actually I use foil backed hard cast "UL" 181 tape on any component seal. Ducts get rated tape with mastic duct sealer.

    The foil backed hard cast tape when installed properly will never fail and looks very nice. Always use a squeegee with aluminum tape.

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