Something that a lot of homeowners learn at one time or another is that it’s not a good idea to mistreat your HVAC system. I’m not talking about beating the system up with a stick or anything like that, I’m talking about neglect with lack of HVAC maintenance and repairs and choosing not to change the air filters. While I realize a lot of people know how to take care of their HVAC systems just fine, there are many who couldn’t care less, or just don’t know any better. The air filters must be replaced in a timely fashion according to the directions. Some air filters need to be changed monthly, some every other month, and some quarterly throughout the year. Personally, I prefer the quarterly air filters because they are typically good quality and you don’t have to stress every month about forgetting to get that air filter changed on time. If you fail to replace your air filters like some of these people who seem not to care, you’ll inevitably experience serious issues with the HVAC system. Smaller problems will lead to more significant ones and in those cases it can cost a small fortune to have your HVAC repaired. With a lot of people when they learn these valuable lessons, they will start to pay attention to their HVAC and take good care of it. Others will just shrug and make the same mistakes and pay a fortune to keep their HVAC system running. Which kind of person do you want to be? There really isn’t a good excuse not to keep up with your crucial HVAC maintenance.