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 SMART filter seal has been added to the Smart Air & Energy Solutions™ brand lineup of products. The filter seal is a durable, yet flexible, high-strength film designed to fit tightly over the air ...

Plenums can be designed and manufactured to almost any shape, size, or other design requirements. Decorative finishes, such as epoxy powder coating can be specified to match enclosure colors. Chromate ...

Q: I’m confused about maintenance of my crawlspace, which also serves as a cold-air return plenum for an oil furnace. No cold-air return ducts, just crawlspace. The crawlspace looks quite dirty, and ...

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, ...