american standard gas furnace/vent question
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  1. #1
    Hi,

    I have an American Standard single stage freedom 90 gas furnace. It has a power vent, allowing me to vent horizontally.

    I want to know what size vent pipe is required. It goes about 40 ft, with a 90 degree elbow in it.

    There is 2" pipe now, which I found out was too small for my water heater. So, while I'm at it, I want to make sure I have the correct size for the furnace.

    Thanks,

    Jeff

  2. #2
    Join Date
    Feb 2004
    Location
    chicago suburbs
    Posts
    4,422
    NO DO IT YOURSELF QUESTIONS!
    FILL OUT YOUR PROFILE!!

  3. #3
    Join Date
    Feb 2004
    Posts
    2,597
    it would depend on what size furnace it is, as well as length and number of elbows which you mentioned. the installers hopefully knew what they were doing and went by specs.

    check out the manual.

    good luck

  4. #4
    Join Date
    Jun 2001
    Location
    Louisville, KY
    Posts
    12,115
    Read the door. Big chart that you can't miss. If it doesn't make sense, call a pro.

  5. #5
    Join Date
    Nov 2002
    Location
    emerald city, sc
    Posts
    1,469
    you cant tie your water heater into a 90 furnace vent system, time to call a pro.
    i wanted to put a picture here

  6. #6
    Join Date
    Feb 2005
    Posts
    655

    Thumbs up

    Jeff:
    First of all the term is not Power vented It is Direct Vented.
    If you are not Licensed which I suspect, You are playing with fire.

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