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  1. #27
    Join Date
    Dec 2002
    Location
    Rochester, MN
    Posts
    5,304
    Quote Originally Posted by phbsales View Post
    They could be talking about combustion air intake as a part of the code.
    Two stage A/C has nothing to do with this.

  2. #28
    Join Date
    Jun 2008
    Location
    Cincinnati, Ohio
    Posts
    2,176
    Quote Originally Posted by MPLSRYAN View Post

    Contractor S claims that Contractor Es plan is a code violation. One of Es options was a two stage AC and a furnace with a variable speed blower. S says that they cant put in a two stage AC because our basement is unfinished.
    I thought I saw something about a furnace in there.....

  3. #29
    Join Date
    Dec 2007
    Location
    Cedar Grove, Wi-Sheboygan
    Posts
    1,582
    Most laundry driers and hot water tank's use indoor air for combustion as well as most all 80% furnaces take combustion air from the indoor area, but if you have too many appliances using internal combustion air then yes you will have to account for the lost indoor makeup air as this can lead to negitive pressure inside the home and really cause problems, but this is not anything that can not be easily overcome with the addition of a air intake into the basement to supply combustion air for all needed appliance's.

  4. #30
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,125
    Quote Originally Posted by MPLSRYAN View Post
    .then things got weird.


    Contractor S claims that Contractor Es plan is a code violation. One of Es options was a two stage AC and a furnace with a variable speed blower. S says that they cant put in a two stage AC because our basement is unfinished.
    Unfinnished basement does not prevent 2 stage systems from being installed.

    Its not a code violation.(atleast not around here)
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