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  1. #27
    Join Date
    Jan 2009
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    ?

  2. #28
    Join Date
    Apr 2002
    Posts
    11,808
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    some one read a chart, every calculator is a little different

    a grain is just an easy to use number it is 1/7000 of a pound

    divide the two sets of answer by 7000 and see if there is much difference when you look at 3 significant figures
    The way we build has a greater impact on our comfort, energy consumption and IAQ than any HVAC system we install.

    http://www.ductstrap.com/

  3. #29
    Join Date
    Apr 2002
    Posts
    11,808
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    Quote Originally Posted by unclebingo View Post

    If only the outside Dry Bulb and Coincident Wet Bulb figure could easily be calculated without the need of an online tool. Otherwise I could enter the formula in the Excel sheet and let it generate the numbers.
    get a book, it is possible
    The way we build has a greater impact on our comfort, energy consumption and IAQ than any HVAC system we install.

    http://www.ductstrap.com/

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