I've heard the phrase, “It's too cold to set the charge!” for as long as I've been in the trade. “We need to come back and set the charge,” or we need to come back to do XYZ [some other thing]. Granted, there are cases where you do actually need to come back, but in […]

If you don't use a scale every time you add or remove refrigerant, I suggest you begin doing so immediately, if not sooner. Weighing in while charging is fairly obvious, and it's useful so you can keep track of what you are using and how much to charge a customer. When you have a system […]

This article was written by senior furnace tech Benoît (Ben) Mongeau. Ben hails from the frozen tundra of Ontario, Canada, where high-efficiency gas furnaces are commonplace. While some codes and practices may be different from the US, I find that most of it is common sense and translates pretty well. One glaring difference between Canada […]