A couple of years ago, I wrote an article titled “Four Steps to Start Optimizing a Poorly Performing Duct System.” Since then, I regularly receive calls and emails about the article. One frequently ...

While recently eating dinner with my colleague Paul Wieboldt, we started talking about the common defects found in many duct systems today. As we listed the various duct system flaws typically ...

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.

Saving time and cost while delivering a superior solution – those were the qualities that earned PanelDuct the overall Irish Times Innovation Award for 2015. The company's novel ventilation ducting ...

Q: I just discovered that the air ducts in my concrete slab have problems. An odor alerted me to standing water, debris and even a dead animal in the ducts below my floor. I have galvanized air ducts ...

In the last blog, I looked at the fundamentals of mechanical ventilation and heat recovery and this week I'll be looking specifically at the system that we are installing in the Denby Dale Passivhaus.