HVAC units are the worst. I don’t actually think that HVAC units are the worst. However, I don’t like certain aspects of HVAC units due to the way that HVAC companies produce them. I guess that the problem all starts with the HVAC industry. A long time ago, HVAC companies used to make HVAC units that would last a long time. Back then, the quality of an HVAC unit was considered the most important part of the HVAC unit. People paid more money, but they knew that they were going to get an HVAC unit that was going to last them a while. Unfortunately, HVAC units are just not made like they used to be made. Now, it seems that HVAC units are made to break down. I think that HVAC companies realized that it is more profitable to build an HVAC unit that needs to be constantly repaired. Instead of making money by selling quality HVAC units, they make their money by selling parts to repair the HVAC units. Also, since the HVAC units do not last as long, they make money by selling HVAC units more frequently, and they sell them for a higher price. I think that the business practices of the people that create HVAC units are unethical, and I do not support it at all. I have no idea how the HVAC companies get away with stuff like this. It just seems completely unfair that people would get away with treating the people that need HVAC units like this. This is why I think that HVAC units are the worst.