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Podcast: HVAC School - For Techs, By Techs
Episode: Duct Design Facts w/ Jack Rise
Description: Jack Rise returns to the podcast to share some duct design facts with us and talk about his Manual D book on the ACCA website. Before we can even start thinking about duct design, we need to think about the total effective length; even before that, we also need to think about finding the critical path. The critical path is the path with the greatest resistance to airflow (from the return to supply); the fittings in the critical path contribute to the duct's total effective length. Flex duct is a controversial and somewhat complicated building...