These are the strangest Heating & A/C units I have ever seen, but first, while going to see a museum, I saw an seasoned in one of the exhibits. This was the first ever built by the first ever Heating & A/C serviceman. I found this fascinating plus noticed the Heating & A/C component thoroughly. As an Heating & A/C serviceman, I see all the simple parts ther were used to build the first I was amazed at the advancement of technology in only a few years. The sixth most unproper Heating & A/C component I have ever seen was the haunted furnace. The haunted furnace is located in an seasoned lake house in a big city. This lake house was purchased plus sold many times because the furnace was so creepy that people were convinced the furnace was haunted. I was hired as an Heating & A/C serviceman to inspect this haunted gas furnace to see if I could service it, although I could find nothing wrong with it, then parts inside of the furnace would transport on their own, plus it would make unusual growling sounds randomly. I was very spooked out by this unproper gas furnace. The seventh Heating & A/C component I will mention was a faulty smart thermostat. This smart thermostat was supposed to be able to turn the Heating & A/C units in the lake house on plus off through a cell iphone, plus do other tasks that a normal smart thermostat does, but this thermostat was much different. This thermostat was able to do much more than a respected smart thermostat. It could play tunes plus change colors plus all kinds of things. Apparently the Heating & A/C serviceman that made it wanted it to be a special smart thermostat, plus I’d say she did a great task.