We strongly discourage the use of duct board wyes for splitting air flow to different areas. The estimated equivalent length of a duct board wye is approximately 150 feet at 900 Feet per Minute. The key flaw with fittings made into

Charles Watson, a British school teacher in the 1850’s notices he, and his students, are repeatedly getting sick in his classroom. He reasons that the indoor air quality has to be the source of the problem. Using well established principles

Here is a link to an article Paul wrote for HVAC Today. It is an overview of why Manual J is so crucial to proper design. https://hvactoday.com/use-manual-j/

Manual J is a building science related engineering calculation that helps us put value on the structure’s ability to resist the loss and gain of heat in your specific climate conditions. The information we input describes the elements of the

Why does my air conditioning system cost so much to run when it still doesn’t keep me comfortable? In the heating and air conditioning industry, we are beginning to understand the cause-and-effect relationships between inefficient building practices and wasting energy