A Clean Furnace Filter Will Help Your HVAC Operate Efficiently

Hollub Heating and Air ConditioningOne of the simplest and most effective things you can do to keep your HVAC system operating efficiently is to change the furnace filter regularly. The filter is your system’s first line of defense against dust and other debris and is a key factor in keeping your indoor air clean.

Why Is the Furnace Filter So Important?

The primary job of the filter is to keep the air flowing through the ductwork clean. Unfiltered air leads to a buildup of dust and pet hair on coils, inside ducts and on the moving parts of the air handler. This layer of grime increases friction in moving parts, resulting in early equipment failure. It also reduces heat transfer across coils, so your system uses more energy to produce the same heating or cooling that it would with clean coils.

Running your HVAC system with a dirty filter leads to several problems that interfere with your system’s energy efficiency. A clogged filter slows airflow. When your air conditioner is running, reduced airflow leads to excessive ice buildup on the evaporator coil, reducing heat transfer and making your system run more than it needs to in order to keep your home cool. A dirty filter also forces the air handler to work harder to try to maintain the correct airflow, so your system uses more electricity than it would if you had taken the time to change the furnace filter.

Keeping your indoor air quality high is a secondary benefit of clean furnace filters. If you change the furnace filter regularly, your HVAC system will be able to maintain correct airflow while also cleaning dust and pet hair from the air. An inexpensive fiberglass filter is adequate for most HVAC systems, but you should talk with your HVAC contractor about using more efficient filters if you’re concerned about removing dust mites, pollen, tobacco smoke and other allergens from your indoor air.

To learn more about how to change the furnace filter in your home, contact the pros at Hollub Inc. or call us at (312) 829-8000 to schedule a service appointment.

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