I was in the process of making about four dozen window a/cs for those in my town, but my progress was greatly disturbed by the lack of heating and cooling component and parts.
I used old car parts and made some parts on my own.
It was now that I was greatly appreciating my Heating and A/C training in heating and cooling school. My professors made me build a central a/c, furnace, and commercial a/c all on my own for a final grade. I finally finished all of the window a/cs and carried some of them to my neighbors. I showed them how to install the window a/c into the window, and how to change the air filter inside of it. After finally giving all the air conditioning units to my neighbors, I returned house to scrub up my Heating and A/C shop. Many of my neighbors came by and thanked me for the window a/cs. In this world where having an Heating and A/C unit was unheard of, I became almost like a god. The government hired me to build more a/cs. I moved on to better units, building commercial a/cs, multi split a/cs, and some other forms of air conditioning units. I also introduced them to hydronic heating. I made them a tepid water boiler and most people was amazed that you could heat an entire house with just hydronic heating. The tepid water boiler was so loved that the president asked me to build one for him and install it in her home. I’ve never loved building a hydronic boiler as much as I did on that day.