HVAC professionals across the country are experiencing a recent change that is driven by energy codes. This change is related to duct-leakage testing on new and often retrofitted HVAC systems. A lot ...

This American National Standard, ANSI/SMACNA 016-2012, covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Contains updates to ...

SAN FRANCISCO (CN) - A trade association's copyright challenge to the online posting of a 1985 air duct manual is bogus because the manual has been "incorporat(ed) by reference" into state and federal ...

Many people share the same energy concerns and problems. Here are a few answers to recent letters and e-mails I’ve received from readers: Cold air leaks from the indoor air handler: A reader in ...

If you trace this duct down, you'll find that it connects to an opening at the exterior of the building. This is essentially just a hole in the side of the building that brings in fresh outdoor air.

According to Natural Resources Canada air leakage represents 25-40 per cent of the cost of heating and cooling a home while the US Department of Energy puts the cost at 30 per cent or more. Given that ...