Ways to Save If you're having problems with your heating or cooling system, there are some easy maintenance tasks you can perform. Most problems come from dirt and dust buildup, following these 5 easy tasks can ensure the longevity of your system and save you money. Of course, do-it-yourself servicing doesn't replace the need for an annual maintenance checkup. Along with cleaning your system and checking it for problems, your service technician will let you know ways to lower your monthly bills.

Understanding Your System Click the image for an illustration of a typical central heating and air conditioning system. It also includes additional components for air quality and energy efficiency. Roll over each component in the list to see a brief description.