When brazing and soldering, we have a few things we need to accomplish to make a proper connection: We can't overheat the joint until it overheats the base metal or the flux where applicable. We must bring the entire joint above the melting temperature of the brazing alloy. Draw the alloy deep into the joint. […]

As you may already know, we work on pool heaters at Kalos as a way of opening ourselves up to some extra business during the winter. We find that it's a worthwhile line of work, and it may be something that other residential HVAC companies may want to consider doing. This tech tip by Bert […]

There is a lot of misunderstanding about the HSO (hard shut-off) or “non-bleed” TXV (thermostat expansion valve) and what makes it shut off, why it exists, and how it “magically” opens. Once you understand the forces inside the valve, it is quite simple, obvious, and sadly devoid of any magic. The Three Forces  The TXV […]