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 ...

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 ...

Many in our industry believe the duct material used in an installation determines how well the HVAC system moves air. Because of this mentality, flexible duct often gets a bad name. The issue isn’t ...

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 ...

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 ...

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 ...

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 ...