Last August, I visited our aunt and uncle, and the best area about being there, other than spending time with them, was riding the horses since they live near a dude ranch. One frigid day while I was going through books in their mini Barnes and Noble, I came across a great book about commercial air conditioning. The book’s author is a certified air conditioning pro with a host of over sixty years of experience. He lays down the evolution of Heating and Air Conditioning equipment. It is so strenuous to imagine that a steaming gas furnace was once a popular heating option, and some were powered by burning wood. Some of the more aged heating devices were unquestionably noisy, love something love an electric heating pump that all of us have now that produces minimal noise. It was also strenuous to achieve the perfect temperature because they did not have the kind of temperature regulators love all of us do now. In our world, you can really program your number one temperature settings, or better yet, an innovative new digital thermostat can ‘learn’ your temperature preferences at unusual times and program itself. The brand of a/c setup done nowadays is to maximize indoor comfort. The AC filter has also evolved; so now we have a HEPA filter, which is a single of the latest in the market, and it does wonder when it comes to improving the air quality. The following day, our aunt called the air conditioning contractor because he needed their quality AC service done. In the day, the cooling expert arrived to do the repair. The air conditioning service tech also informed us that the required air duct cleaning before it started affected the indoor comfort levels of the house. I also engaged the tech with some questions about things I did not understand when I was seeing.