Ever since Nikola Tesla invented the modern induction motor, we have been struggling with varying the speed of motors efficiently and reliably. The trouble in the HVAC industry is that there are several different types of technologies in play, and they can easily get confused. ECM (electronically commutated motor) In residential and light commercial HVAC, […]

This article was written by up-and-coming young tech and new contributor Kaleb Saleeby. Thanks, Kaleb! Recently, I came across a work order description in my dispatch that made me scratch my head. Clean Salamander broiler I had to ask the omniscient Google for answers. It turns out it has nothing to do with vividly-colored, “fireproof” […]

We all know (or should know) that venting refrigerant is a big no-no and can result in trouble from the EPA. There are many other potential violations, but two of them can easily occur if you aren't thinking ahead at the disposal of mercury and oil. Mercury is found in fairly large quantities in the […]