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  1. #1

  2. #2
    Join Date
    Dec 2008
    Location
    Maryland
    Posts
    2,724

    Default Re: water heater expansion tank

    Think the answer you are looking for is between the last shutoff valve and water heater.


  3. #3
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,991

    Default Re: water heater expansion tank

    Yes, no, and maybe

    If there is no backflow device (check valve) or pressure regulator - no ... unless water utility requires it.

    If there is a backflow device or pressure regulator - yes ... except that the code only requires a means to control thermal expansion, so most AHJ permit expansion tanks or pressure relief valves (not the T&P relief valve).

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

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