When it comes to caring for your heating and cooling system, you may not think you need to do much more than schedule annual maintenance (or biannual maintenance, if you have a heat pump.) While this service is imperative, there is one task that you can and should be doing on your own: changing the air filter.
Here in Jacksonville, we of course utilize our air conditioning systems more than our heaters. But, whichever you use and for however long you use it, they both come equipped with air filters to strain our dust and other contaminants from the air. This helps keep your blower motor and other important components free of debris, and also improves your indoor air quality.