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frosty74
31-03-2007, 06:12 AM
anyone have a site where i can download a calculator to size up a ducted system for a home.

regards

mark:D

Peter_1
31-03-2007, 09:54 AM
http://www.constructionbook.com/hvac-ducts/

Peter_1
31-03-2007, 09:54 AM
And perhaps http://www.hvacware.net/engrproj.html