PAY ATTENTION: Flexible duct must be properly installed to perform as intended. Attention to detail will make or break the duct system. July 2, 2018 In order to understand the foundational principles ...
For the past 50 years, engineers have been “designing” duct systems. Quite often, they were not actually designing the systems, but were sizing duct the duct according to some rule of thumb. The rules ...
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