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 ...

NEC cabling installation requirements are straightforward, but markings and new offerings may create confusion. You're not alone if markings and listings are making your plenum cabling selection a ...

Your air ducts and vents require regular maintenance. Ignoring tasks like replacing your filter each month can invite pollutants into your home's ventilation system. Viruses, bacteria and fungi can ...

There is a lot that goes into maintaining a home. And if there's one task that many overlook, it's having their air ducts cleaned. The ducts are hidden, so it's easy to understand why you might forget ...

All questions and answers are based on the 2017 NEC. Underlined text indicates a Code change. Q. What are the Code rules regarding wiring installed in ducts specifically fabricated for environmental ...

[Editor’s note: When we last visited with lead installer John and his helper Charlie (The NEWS, March 5, 2007), they had just learned the hard way that there’s a lot more to sealing ducts than just ...

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 ...

Q: More than 40 years ago, I read an article about a man who heated his small home by centralizing the source of heat into the crawl space. Each room had a floor register placed under a window, and ...