Your air filter collects dust and debris that could get into the furnace and cause problems. It does this job pretty well, but it has one major drawback: it can’t get rid of the debris that it collects. In this article, we'll go over some reasons why it's so important to change your air filter. That way your furnace can run at its best for years to come.
HVAC Unit Lifespan: If the air filter gets too dirty, it can get clogged to the point that air can't get through. When the furnace runs, the lack of airflow will trap the heat in the system. Without a new air filter, the furnace will overheat after it runs for a few minutes. Dirty furnace filters also cause your furnace to work harder than it should. The harder your furnace works, the quicker its parts will wear out.
High Energy Costs: Because your furnace works harder with a dirty filter, it will run longer and more often. That means it will burn more fuel or use more electricity whenever it gets cold. It can get to the point that your furnace struggles to keep your home warm. This increases your energy costs during the winter.
Poor Air Quality: The purpose of the air filter is to catch dust, pet hair, and other allergens in your home. Trying to pull air through a dirty filter can knock some of that caught dirt loose and make any problems worse. That can be a huge deal for people already living in areas with low air quality. And it can be an even bigger problem for people suffering from breathing issues.
Safety Concerns: Dirty filters can cause an enormous number of safety concerns. They can clog the system and overheat. If the furnace overheats enough, or if something flammable gets caught inside, it can cause a fire.
