When renovations called for the addition of a roof to the 19-year-old Arthur Ashe Stadium in the New York City borough of Queens, sheet metal contractors were hired to make and install ductwork at the tennis facility named for the late tennis star.
In 1948, research by R.G. Huebscher established flow resistance for different shapes of ductwork at equal velocities, which allowed the creation of the duct-sizing calculator or “Ductulator” for picking equivalent sizes of rectangular ducts based on the baseline round duct size.
Lennox’s 2017 Home Energy Report Card survey found that many homeowners are willing to take drastic measures if it means saving money on their energy bills.
Linx Industries, a division of DMI Cos. and formerly known as Lindab USA, has hired Raymond Yam as its large project specialist, where he will provide nationwide sales support for the company’s ductwork systems.
Builders generally remain confident in the single-family home market, according to the most recent survey from Wells Fargo and the National Association of Home Builders.
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