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  1. #1
    Join Date
    Mar 2007
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    Philadelphia PA
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    3,177

    Default oil tank vent pipe size

    Can someone remind me of the minimum size for the oil tank vent pipe?

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  2. #2
    Jeff Remas's Avatar
    Jeff Remas Guest

    Default Re: oil tank vent pipe size

    1-1/4" per NFPA. They increased it to 2" then decreased it back to 1-1/4". If you start putting tanks in series then you may have to increase it is size depending on whether or not your areas has adopted the IFC or the NFPA. They differ in requirements.


  3. #3
    Join Date
    Mar 2007
    Location
    Philadelphia PA
    Posts
    3,177

    Default Re: oil tank vent pipe size

    Jeff - Thanks!

    "There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
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