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, ...
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 ...
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