Let's use a bit of imagination for a minute. Imagine you have two totally identical 3-ton systems. One of them is completely normal, and the other has no fins at all on the evaporator coil. They both have the same charge, airflow, and compressor capacity. What will be different in terms of readings and performance […]

Our technician, Sam, sauntered into my office this afternoon like techs often do on a slow spring afternoon before the summer hits. It's been a long day for me, lots of training prep, a bunch of little fires, and errands to stomp out, and I still didn't get my article for the day written. I […]

    Everyone in the HVAC/R trade uses some type of torch to braze or solder alloys together. So, what is the proper way to handle an oxyacetylene torch? It turns out that there’s more than one right answer. Depending on which torch rig you use, the manufacturer’s manuals for operation may vary.  Everyone (hopefully) knows […]