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 ...

When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. To supply this air to the furnace room, ...

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 ...

The WiFi signal at the top floor of my house poor, so I am exploring the possibility of routing a cable from the first floor modem up 2 floors to the top floor. The options for routing this cable are ...

As many contractors attest, a supply air plenum is a sheet metal box attached to a furnace or air handler’s outlet and is used as a central manifold connector for other ductwork. As the air blows from ...

Is it a bad idea to run standard cat5e/RG6 cable through a homes heating/cooling air ducts? I have a long house with a central duct running down the length between the ground and upper floors. I'd ...

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 ...

Household air pollution killed 3.2 million people in 2020, according to the latest data from the World Health Organization (WHO). Considering that the average American spends approximately 90% of ...

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 ...

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 ...