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Thread: Dryer vent

  1. #1
    Wade Johnson's Avatar
    Wade Johnson Guest

    Default Dryer vent

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  2. #2
    Join Date
    Mar 2007
    Location
    Atlanta, Georgia
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    Default Re: Dryer vent

    1502.3 Duct Size. The diameter of the exhaust duct shall be as required by the clothes dryer's listing and the manufacturer's installation instructions.

    1502.4 Duct construction. Exhaust ducts shall be constructed of minimum 0.016 inch-thick rigid metal ducts, having smooth interior surfaces with joints running in the direction of air flow. Exhaust ducts shall not be connected with sheet metal screws or fastening means which extend into the duct.

    The most common duct size is 4 inch single wall. 4.5 double wall would be about 4 inch interior diameter. It would be smooth wall metal duct with joints running in direction of air flow. Unusual but seems to meet the basic criteria. The clothes dryer mfg instructions may be the gotcha.

    Last edited by Bruce Ramsey; 06-02-2011 at 10:20 AM.
    "The Code is not a peak to reach but a foundation to build from."

  3. #3
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,245

    Default Re: Dryer vent

    Quote Originally Posted by Wade Johnson View Post
    Can you use 4.5 inch double wall pipe for a dryer vent?
    You mean Type B Gas vent for dryer ducts? No.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  4. #4
    Wade Johnson's Avatar
    Wade Johnson Guest

    Default Re: Dryer vent

    Thank you. I have tried to log into your website "askcodeman" but it won't let me.


  5. #5
    Join Date
    Mar 2007
    Location
    Atlanta, Georgia
    Posts
    1,078

    Default Re: Dryer vent

    Jerry, Can you help me undestand why B Vent is not allowed?

    "The Code is not a peak to reach but a foundation to build from."

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