There is nothing new under the sun
I learned the hard way that there is nothing new under the sun, especially when it comes to HVAC units.
Every year, my town hosts an HVAC building competition where some of the best HVAC technicians and heating and cooling designers build their best air conditioners, furnaces, and air purifiers and then display them to be voted on.
Whoever has the most unique or just the best HVAC unit wins a huge check. I was still a young HVAC technician, but I thought I knew all there was to know about basically any heating or cooling unit. I had worked as an HVAC technician for four years and for three years I worked in a heating and cooling business as well as an air conditioner and furnace warehouse. I decided to enter the contest, and I had high hopes. Most of the HVAC technicians would make some kind of central air conditioner, electric furnace, or maybe even a UV light air purifier. Some of the more advanced HVAC technicians would build their own smart thermostat. I decided to build an HVAC unit never seen before in the heating and cooling competition. I decided to build a SEER rating device that could be used not only on air conditioners, but also on furnaces of all types. This was no easy task as SEER rating devices are hard to build and the technology is complicated. I went to work in my heating and cooling shed I had built in my backyard. It took several weeks, but I finally finished my SEER rating device in time for the HVAC competition. I won the competition, although my SEER rating device was listed with several other SEER rating devices similar to mine.