This type of duct is risky because it can sag, allowing lint to build up at low points and trapping lint in its ridges. Handel recommends a rigid metal duct. “The smooth walls allow the air to ...

Replace it with a rigid metal duct instead. It'll certainly be cheaper than rebuilding your house. Even if you have a metal duct, you'll still need to clean it out every few months, disconnecting ...

Galvanized rigid steel and aluminum are the traditional materials for electrical ... and electrical and tel/data conduit and ducting (click here to see Fig. 2). In electrical installations, the ...

All questions and answers are based on the 2017 NEC. Underlined text indicates a Code change. Q. What are the Code rules regarding wiring installed in ducts specifically fabricated for environmental ...