Over the half-century of my commentary for these SNIPS articles, I can state without reservation, absolutely nothing is the same since that September day in 1968 when I was hired by GRIPNAIL.

Here's why the addition of rectangular duct construction tables in SMACNA’s 1995 DCS (Duct Construction Standards) as T-25a/b, known in the trade as TDC/TDF, was necessary. 

A sheet metal contractor efficiently built the duct in the UBS Arena at Belmont Park with Spiralmate® and Ventmate.

Here are the top 5 things Hennemuth Metal Fabricators considers when sending exposed duct out to our customers.

Quick Connect is the new generation of refrigeration pipefitting designed for ductless mini-split and ducted unitary, single-family residential air conditioning systems. 

CL Ward now offers a patent-pending sealed slip-and-drive system.

 With special HVAC construction tools, an RLS connection can be done in less than 25 seconds, saving 77 percent on labor costs, officials say.