This article was inspired by a podcast episode about the house being the most underappreciated duct with Joe Medosch. You can listen to that podcast HERE. We probably think about sheet metal, flex duct, or the ever-controversial duct board when we think about ducts. It’s probably shiny and out of sight in most homes. But […]

Grounding is an area of many myths and legends in both the electrical and HVAC fields. This is a short article, and we will briefly cover only a few common myths. For a more detailed explanation, I advise subscribing to Mike Holt's YouTube Channel HERE. Myth – Current Goes to Ground Actually, current (electrons) will […]

As we discussed in an earlier podcast, a TXV maintains a specified and constant superheat at the evaporator coil outlet. It does this through a balance of forces between the bulb pressure (opening force), equalizer pressure (closing force), and spring pressure (closing force). We can actually adjust the spring pressure on some valves. But why […]