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  1. #1

    Best HVAC load calculation and duct sizing program

    Hello, Im new to the forum and a new business owner also. Im looking to purchase a sizing program but would like some advice on which one is the best since there is a few on the market. I will be doing mostly residential service work but will have a few new installs. Thanks in advance for your help.

  2. #2
    Join Date
    Oct 2010
    Anderson, South Carolina, United States
    I use wrightsoft mobile for changeouts

  3. #3
    Join Date
    Jul 2014
    Brevard County, FL

    I'm not sure what the local building code requires in your area, but in Central Florida we are required to use a program that is ACCA approved. Here is a link to the site

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