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  1. #1
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,152

    Default WATER HEATER AND BOILER VENT PIPES

    HEY ALL

    found this in crawl space today. two water heaters vented together but this opening in vent stack. same thing for boiler. am i right that this is spewing co into crawl. my co detector did read low levels when water heater fired. or is this a right config???

    cvf

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  2. #2
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,682

    Question Re: WATER HEATER AND BOILER VENT PIPES

    unlisted horizontal draft hood. That and the single walled connector should not be there.

    Listed and approved draft hoods only and B-vent only in crawl space.

    Condition of chimney?
    clean out?
    Liner?
    Clearances to combustibles off that single walled pipe?
    Support?
    Screws?

    Keep the fire in the fireplace.

  3. #3
    Dariusz Rudnicki's Avatar
    Dariusz Rudnicki Guest

    Default Re: WATER HEATER AND BOILER VENT PIPES

    If this is on the water vent pipe, it will act as a second draft hood, and double draft hoods are not permitted. It dilutes exhaust gases and might cause spillage into the crawlspace.


  4. #4
    Join Date
    May 2007
    Location
    Frankfort, KY
    Posts
    326

    Default Re: WATER HEATER AND BOILER VENT PIPES

    Quote Originally Posted by Bob Harper View Post
    unlisted horizontal draft hood.
    That's all it's gonna take for me to give it the red tag.

    Nice even rusting too.

    Measured Performance more than just a buzzword

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