Kristof Irwin's Groups (3)

  • HVAC

    187 members Latest Activity: Jul 30 HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements, and more. Since heating & cooling are such a big part…

  • Home Energy Ratings

    105 members Latest Activity: Jun 17, 2015 Calculating them; visualizing them; explaining them; selling them .... there is a lot to discuss and debate here

  • Wrightsoft - Manual J / Manual D

    47 members Latest Activity: Feb 20 If you use Wrightsoft to calculate loads or design ducts, you likely have questions.  Get answers from veteran program users and peers here!


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