I have been hired to write a book about the heating and cooling industry, and I honestly do not know why I was hired or anything about heating and cooling. Out of all the things I have been hired to write books about, this is the first time I am totally clueless! If the pay was not so good, I would have turned down the job and done something else. But for the pay, I could not say no! So, I have to do a whole ton of research on the different kinds of heating and cooling related technology and equipment available! So far, in my research, I have seen things and learned about radiant heated floors, smart temperature control thermostats, ductless mini-split heating and cooling systems as well as things about the outdated heating and cooling equipment like window air conditioning units, which were what most homes had before central heating and cooling became available to everyone at an affordable price. I also have been reading about space heaters, in which space heaters are a cheap way to heat your home as well as save a whole ton of money on your monthly and biweekly electric bills. Actually to be honest with you, after doing all this research and learning all about the ins and outs of the heating and cooling technology as well as the current heating and cooling systems, I almost want to become a certified heating and cooling worker! But, I actually make a few more bucks writing the books, so I think I will stick with that for now.