The National Air Duct Cleaners Association (NADCA); also known as the HVAC Inspection, Cleaning, and Restoration Association; today announces the publication of a white paper on methods of inspecting ...

To fully understand how to install a high-velocity HVAC system, one must know what it is and what it does. Basically, it is a small duct, high-velocity airflow, heating and cooling system designed to ...

Duct routing looks simple on drawings, but once construction starts, it becomes one of the most challenging coordination tasks in a building project. Engineers design ducts for performance, ...

Q I live in a home that was built with transite heating (heating and air conditioning ducts under the poured concrete floor in the basement). We've had continuing problems with water infiltration.

Though suspended ceilings (above, right) remain the most popular ceiling system option, facility managers report that 17% of their total building square footage still features an open plenum ...

While exposed ceilings in office interiors lend a spacious, open feel, this trendy architectural feature has created a new challenge: finding a viable return air path. Plenum ceilings use the area ...

QUESTION: We have a 1,440-square-foot basement under a full two-storey home heated with a high-efficiency gas furnace. We have four warm air outlets in the basement with no cold air returns. A friend, ...