Trigger Warning: This article isn't specifically about air conditioning, and it includes a markedly Christian worldview. If you would prefer that I  “stick with the A/C stuff, preacher boy,” then this is one you should skip—or not 🙂  Also, it's my birthday this week, so give me a pass.  Today, families all across the country […]

So, I hear you're just finishing trade school. Well done. You chose to take an excellent path, and now your journey is just beginning. How this will go is really up to you, and that's a good thing! You aren't going to be forced in one direction or another; you get to choose. Let's talk […]

Relays can be used for many different control applications, including controlling fans, blowers, other relays, or contactors, valves, dampers, pumps, and much more. A 90-340 is a very common, versatile relay that many techs have on their truck. So, we will use it as an example. A relay is just a remotely controlled switch that […]