I was interested in reading a little bit about the Heating, Ventilation & A/C machine industry, although I did not want to invest in going to university to become a certified heating as well as A/C maintenance specialist or anything quite like that! I already have my career as well as a great task. I just wanted to know some more about heating as well as cooling as well as maybe learn a few pointers to save myself and others some money on Heating, Ventilation & A/C machine repair. So, I got myself what I call an audio education on being a Heating, Ventilation & A/C machine specialist in the heating as well as A/C business. I found some seasoned tapes in a thrift shop from the 1990’s that had 4 volumes of instructional stuff on it to prepare for a test to become a certified heating as well as cooling maintenance specialist! They came from a long gone university in the city from back then. I listened to all 4 of these tapes, as well as I can tell you, that 50 cents I spent for the tapes has totally paid off in hundreds of dollars! I was actually able to learn enough to service a few heating as well as A/C concerns I have had throughout the last few years! These were heating as well as A/C concerns that I would have otherwise called a heating as well as A/C maintenance contractor about as well as had them dispatch a heating as well as A/C maintenance specialist to our residence! The visits alone, without the heating or air conditioning repair figured in the bill was 200 bucks to start! It is totally amazing the things you find in thrift shops. Some are a bit funny, some are worthless, as well as some things can save you money or make you a ton of money! It is seriously odd how things tend to work out periodically.