HVAC work is never just “HVAC” work. One minute you're brazing copper, and the next you're troubleshooting a blown fuse in a disconnect or running a new whip to a condenser. Because our trade is so varied, you never know what you're going to find when you open a service panel or crawl into an […]

Some quick basics: An ohmmeter is used to measure the resistance to electrical flow between two points. The ohmmeter is most commonly used to check continuity. Continuity is not a “measurement” as much as it is a yes/no statement. To say there is continuity is to say that there is a good electrical path between […]

How many times have you looked at the bottom right-hand side of an evaporator coil and seen all sorts of rust, even on a fairly new coil? You may have noticed that many evaporator coils and even some condenser coils will start to corrode where the galvanized steel endplates touch the copper U-bends of the […]

In this live recording from the AHR Expo, Kaleb Saleeby, Nate Adams, Michael Housh, and Steve Rogers discuss building performance. The building science world is an exciting place; we're all excited about improvements to reheat dehumidification, which is when we use waste heat to take care of humidity without cooling. As equipment becomes more efficient, […]

In this episode, Nate Adams and Michael Housh give the HVAC 2.0 rebuttal to the idea of standard load calculations. They take a different, possibly more radical approach to proper sizing. Michael and Nate believe in doing real-world load calculations, not just relying on models for load calculations. They are on the side of replacing […]