Dryer vent/ducting

Discussion in 'Remodel Forum & Blog' started by DIY, Feb 21, 2010.

  1. DIY

    DIY Member

    Dec 24, 2006
    Hi all,
    Does anybody here have any first hand experience with periscope type duct that is square in shape,and measures 2" x 6" for limited space installations, and is said to work as well as the standard 4" round duct?

    Thanks to all!
  2. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego, CA
    ALthough they are a little flimsy, they seem to work ok. I have not seen any actual test results about air flow. Be sure to tape all joints with foil tape, or you will "leak" lint.
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  4. Gary Swart

    Gary Swart In the Trades

    Sep 1, 2004
    Yakima WA
    The only ducting I am aware of the should be avoided is the flexible tubing. That's because the ridges inside catch lint and eventually create a fire hazard.
  5. asktom

    asktom Member

    Nov 9, 2009
    Victor, MT
    We have sold them for years with never a problem. Do tape the joints.
  6. Master Brian

    Master Brian DIY Senior Member

    Nov 13, 2008
    Does that hold true if I use about 4' of the flexible aluminum(?) stuff to make a connection to rigid dryer tubing. It was used to simply a sort of complex bend and make connection to the dryer easier. Most of it will eventually be buried behind a finished wall, I'm guessing it should be replaced with rigid pipe. Sorry for the intrusion...
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