If I had grasped how to repair my own heating plus cooling system, I would have been able to save a lot of currency over the years.
Not only that, I would also have a nice sense of accomplishment by fixing my own a/c or heater.
I realize that not everyone is cut out to be able to install and service A/C, but I guess if I had l acquired the knowledge when I was younger, I would have been able to do it. I may not have decided to be a heating and A/C tech for my main source of income, but I also could have used it as a little side hustle. Between fixing my own heating and A/C when it has broken down throughout the years, plus also repairing the heating and A/C systems for other people as moonlighting work easily could have helped me financially. But the dude that came to repair my A/C not too long ago had to climb up into the attic to deal with whatever the complication was. Ironically the guy who fixes the A/C has to practically pass out from heat stroke because of the sites he has to go plus crawl into. Then at my other house when I needed A/C assistance, sometimes they had to go under the crawl section of the house. That, too, is legitimately hot, plus it may have even had the skeletons of old disgusting animals that died under there as well. Not to mention legitimately living spiders! My point is, being the A/C guy is not all glamorous and everything, but it pays a nice living plus it also can save you currency if you can service your own heating and cooling system.