Before selecting duct materials, it helps to understand how air flows from your heating/cooling unit through the duct network. Most systems use either a hot air furnace or an air conditioner ...

Fill in the blank with the appropriate answer. When installing a ventilating duct in a transformer vault, per Part III of Art. 450, the duct shall be constructed of material that is _____. A.

Sealing ducts is now recognized as being very important. In fact California, always a bell-weather state, is now requiring duct testing and sealing on most change-outs and new construction. Building ...

While recently eating dinner with my colleague Paul Wieboldt, we started talking about the common defects found in many duct systems today. As we listed the various duct system flaws typically ...

A duct for air handling may seem to be a straightforward component, but when that duct is part of the environmental control system on an aircraft, there are potentially a number of requirements it ...

Fiberglass insulation is not airtight. Heck, it will barely even slow air propelled by convection, differential pressure or wind. It is especially helpless against air moving through a leaky pipe ...

Compare plans tailored to your home & budget. According to the U.S. Department of Energy, a leaky air duct can cost hundreds of dollars in heating and cooling bills. If simple repairs don’t fix the ...