Furnaces are big investments! It’s important to keep them in good condition for as long as possible. You certainly don’t want to require a replacement anytime soon. And the energy cost of heating is a big investment, too. Paying extra just because of a furnace running inefficiently would be miserable. So what can you do to make sure your furnace stays happy and healthy?
Annual maintenance must be done by qualified professional HVAC technicians. But that’s just once a year. There’s definitely something you can do more often! Your furnace has an air filter, and that air filter needs to be changed. Why? When? How? We’ve got the answers to your questions.
