Have you ever wondered how much you have to keep up with a HVAC unit? Between filters, ducting, and yearly check-ups for debris and or leaks. It takes a lot of time and depending on the kind you get, expensive. Don’t get it confused though, if you think something is wrong with the unit before a year or a few weeks you may want to call it in as it can cost even more than what the unit is worth to begin with. Other ones that are smaller, a window unit for instance, you may want to clean it yourself and keep up with filter changes. Usually window units don’t get maintenance check-ups because they are pretty easy to keep up with. You may or may not call them in order to get a certain part if you choose to replace it. There are other kind that plug in. Most of the time those are portable heaters. It gets hotter than colder in some environments based on location as well. You can’t forget about the big to small fans,those just need to be dusted out every so often. Those kind of HVAC devices uses a motor instead of ducts, outside air or coils. It simply pushes air out by a propeller. So dust is your biggest enemy with these devices. This little bit I’ve informed you about is the surface of all the knowledge you might want to know when getting involved with purchasing a cooling and heating device.