With model building codes mandating tighter and tighter ductwork, and with homeowners and building owners desiring increasingly higher efficiencies from their ducted systems, many new products have hit the market to help builders and installers efficiently and effectively meet those requirements.
A couple of months ago, I addressed the topic of how proper HVAC system design could not guarantee the installed performance of a system. Since that article, I have received a number of emails requesting I go into further detail about the measurements I mentioned and how to verify the installed performance of a system.
Have you ever noticed dirt streaking out of the sides of any of the supply vents on the HVAC systems you service? Dirt streaking on supply vents is a common problem HVAC professionals encounter on a daily basis.