Retro-Commissioning of HVAC Equipment

A Letter from Paul:  Retro-Commissioning of HVAC Equipment  Definition of Retroactive: Extending in scope or effect to a prior time or to conditions that existed or originated in the past. One of the new buzzwords in the HVAC industry is retro-commissioning. This has turned out to be a valuable tool ... Read More

Ask the Expert Q & A

A Letter from Paul:  Ask the Expert Q&A PM Contracting is a commercial heating ventilation and air conditioning TEAM who has been designing and installing systems since 2004. PMC is comprised of sheet metal workers, pipefitters and service technicians. With the collaboration of our project managers, estimators and field personnel, ... Read More

Bipolar Ionization – Plasma Air Technology

A Letter from Paul: Bipolar Ionization – Plasma Air Technology Every so often, we run across a product that looks like a black box. We wonder, “What is inside this box”? and “Why does it cost so much”? The manufacturer tells us that the black box will do all sorts ... Read More

Technical Knowledge Isn’t Enough

A Letter from Paul: Technical Knowledge Isn’t Enough When I was in high school, I was kind of a nerd. I went to a prep school and took advanced math, chemistry, and physics classes. At the time, I thought it was a good method to engage my brain and keep ... Read More