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  1. #1
    Join Date
    Sep 2009
    Location
    West Dundee, Illinois
    Posts
    4

    Default Multiple PVC Flues Ganged together

    I am working on designing a large house. The house will have 2 water heaters and 4 furnaces. All will be high efficiency units. My question is: Is it possible to gang the PVC flues together and gang the PVC intakes together?

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  2. #2
    Join Date
    Mar 2007
    Location
    New Mexico
    Posts
    1,258

    Default Re: Multiple PVC Flues Ganged together

    That's going to be a question for the manufacturer's. I doubt that they will be in favor of it. In theory yes, it could be done. In reality, I'm not sure you'll find an approved setup. PVC isn't that expensive. I see the problem more on the exhaust side than on the intake.

    Jim Robinson
    New Mexico, USA

  3. #3
    Join Date
    Sep 2009
    Location
    leonardo, new jersey
    Posts
    125

    Default Re: Multiple PVC Flues Ganged together

    Always check with the manufacturers web site or call, I have never seen that, I just did a job this past saturday where the unit called for 3" vent and the contractor installed a 2-1/2" and the unit would not run. You need to follow the vent schedule for sure, very sensitive units.

    Joseph Ehrhardt
    Building Forensic Specialist LLC

  4. #4
    Join Date
    Mar 2007
    Location
    New Mexico
    Posts
    1,258

    Default Re: Multiple PVC Flues Ganged together

    Just asking, in IL why wouldn't you use a boiler and baseboard or in floor radiant for the heat system? Is it for the AC system as well? I'm just not a big fan of forced air heat, but we don't need central AC here, which does change things.

    Jim Robinson
    New Mexico, USA

  5. #5
    Join Date
    Sep 2009
    Location
    West Dundee, Illinois
    Posts
    4

    Default Re: Multiple PVC Flues Ganged together

    Quote Originally Posted by Jim Robinson View Post
    Just asking, in IL why wouldn't you use a boiler and baseboard or in floor radiant for the heat system? Is it for the AC system as well? I'm just not a big fan of forced air heat, but we don't need central AC here, which does change things.
    We get good cold and hot temperatures in this area. I've seen -25F and +103F. It's hard to heat smaller rooms with just radiant floors and we do need AC.


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