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flue pipe sizing

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JK_3
JK_3 Member Posts: 240
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  • Matt_67
    Matt_67 Member Posts: 287
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    flue pipe sizing

    Hi guys, can someone tell me where i can find comprehensive flue pipe sizing charts. I misplaced mine and have a situaton with sizing multiple appliances including that I am not sure that a newly installed liner was sized properly. thanks for your help.


    P.S. Happy birthday Dan and wishing you many more.

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  • Standard Flue sizing can be

    found in NFPA 54 National Fuel Gas Code for Category I equipment. All other equipment is Mfr's instructions.

    Keep in mind that flue liners are actually 20% less capacity than a standard double wall type B vent.
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