MANY YEARS AGO, I paid good money out of my own pocket to learn how to design a duct system. I won’t say to whom I paid this money, because I got ripped off. What I “learned” was how to find .1 on a ...

Adapt your ductwork design to ensure adequate system airflow for homeowners who intend to use their blower filter as a whole-house air cleaner.

Household air pollution killed 3.2 million people in 2020, according to the World Health Organization. Pair this with the fact that the average American spends approximately 90% of their time indoors, ...

PAY ATTENTION: Flexible duct must be properly installed to perform as intended. Attention to detail will make or break the duct system. July 2, 2018 In order to understand the foundational principles ...

Years of hands-on HVAC system analysis across Colorado show a clear pattern: indoor air problems rarely start in living spaces—they start inside the ductwork.

After 20 years in development, OSHA published the Confined Spaces in Construction Standard, 29 CFR 1926 subpart AA, on May 1, 2015. The final rule is similar in content to the General Confined Space ...