Time to put away your t-shirts and shorts, fall is here! While having your HVAC system professionally cleaned may not be in your budget, here are some do-it-yourself tips you can check-off to keep your system healthy this season. Check and Replace your Air Filters Inspecting your air filter is the most important thing you can do at home yourself; dirty air filters make your HVAC system less efficient. Depending on the type of filter, it may need to be replaced as often as onc