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 ...

The Spra-Kleen humidifiers have a 1-1/2 gallon per hour capacity, which is controlled by a humidistat. According to the manufacturer, the humidifiers have a unique method of humidifying and cleaning ...

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 ...

In last week's blog post on transite heat, I explained that most sub-slab ductwork is not transite. It's not transite heat, it's not transite ductwork, and it should not be labeled as such unless the ...