In HVAC, you will hear the word “flux” used in two totally different parts of the trade. Magnetic flux is the lines of force that emanate from a magnet, and you often hear about magnetic flux lines in discussions of motor theory. This type of flux has nothing to do with that… Flux in soldering, […]

We had a class with our refrigeration techs, and the topic of leaking and bypassing service “angle” valves and ball valves came up. One of the techs pointed out that most valves recommend loosening the top nut on ball valves and the packing nut on angle valves before turning the stem for maximum longevity of […]

Humidifiers are a big part of HVAC systems in dry locations, especially in the winter. I have no experience with them personally because they aren't prevalent at all in Florida. I asked some of the HVAC School contributors to weigh in with some of their top humidifier tips. Thanks to Nathan Perney, Steve Domansky, and […]