What is the code for exterior duct in NYC

tatail Posted By tatail, Jun 4, 2014 at 11:32 PM

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  1. tatail

    tatail
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    Jun 4, 2014
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    Hi everyone, first of all I would like to apologize if I am posting in the wrong forum as this is my first post.

    I need some help regarding exterior natural gas duct.

    So currently I have a residential property, a natural gas boiler and water heater both are vented through existing chimney.
    What I would like to do is take out the vent through the wall and ran it outside the wall.

    I would like to ask you guys if there is any code that would prevent me from doing such in NYC.
    Also, what would be best option double wall or triple-wall duct?

    thank you
     
  2. DAKSY

    DAKSY
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    Dec 2, 2008
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    Your best bet is to call the local building department. You don't have to give them your name or address, just tell them what you plan to do & ask for the particulars or ask for guidance. Every town, city or village adheres to regulations & some are more strict than others. That being said, many of the newer gas burning Direct Vent units do not require much more than a PVC line with an approved cap mounted on an exterior wall. Yours may be in that category. Bottom line is to do it right & if you do it your way & the Authority Having Jurisdiction (AHJ) - ie. Building Dept. disagrees with your methods, you may run into a situation where you have to tear EVERYTHING out. Nobody needs that grief. Do it once & do it right.
     
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  3. Heatsource

    Heatsource
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    Dec 19, 2011
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    Bob's advice is great,

    also, what does the manual/manufacturer of these appliances say regarding how it can be vented?
    In my area if the manual says you can do it, then the building dept typically agrees.
     
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