SMACNA, MCA and NECA all announced their respective innovators of the year at their first collaborative MEP Innovation Conference in Tampa, Florida in January.
SNIPS Industry Icon David Daw reviews the developments of the HVAC Sheet Metal Industry in the 1970s – including the transition from sheet stock to coil.
Saving labor was a priority in the 1970s as much it is today. One of the biggest developments in the ‘70s (and ‘80s) came from transitioning away from fabricating rectangular sheet metal duct “straights” using galvanized sheet stock, instead using 12,000 pound, 48” and 60” coils.
As HVAC system designers consider their options for spiral duct systems, understanding the benefits and drawbacks of single versus double-wall systems is essential.