These pipes route the cool air through ceiling vents or ducts in each room. The pipes which distribute air in the room are called air conditioning ducts. The distribution system is made of an HVAC ...

You can apply the Manual D procedure to constant volume systems and zoned variable air volume systems, over a full range of duct construction materials. Manual D includes a number of informative ...

You can apply the Manual D procedure to constant volume systems and zoned variable air volume systems, over a full range of duct construction materials. Manual D includes a number of informative ...

Duct heaters are used to heat moving gas streams. They are installed in the middle of a moving air / gas stream in order to provide forced flow heat convection. A duct heater can also be used to ...

Although regular maintenance can help reduce the wear and tear on your system, a rigid air duct cleaning schedule may not be needed. To learn more about how to maintain your air ducts, we talked ...