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Home Care Library

Forced Air Heating

Routine Care Task

Replace furnace air filters


There are two reasons for replacing this air filter:

As a filter gets dirty over time, it begins to clog with dust, pollen, etc.A dirty filter means the fan motor of the air conditioner has to work harder to move air through it, which means it has to consume more energy, and is therefore more expensive to operate.

The filter helps to clean the circulating air, which makes room cleaning easier and less frequent, improves indoor air quality, and helps to provide relief to allergy sufferers.


Monthly during heating season: January, February, November, December (yearly)

NOTE: The tasks and timings shown here for your Forced Air Heating are based on a single-family home (owned), located in Massachusetts, United States, with priority set at ‘1 star' or higher, for all possible goals.

If you set your personalization differently in your Home Wizard app, then you may get reminders for different tasks and timings in your recommended home care program for your Forced Air Heating.

How To

forced air heat care This task involves removing the old air filter and replacing it with a new one (or washing the old filter depending upon manufacturer's directions). The filter is typically rectangular in shape, about 20 inches by 16 inches, and about 1 inch thick. It slides into the main ductwork (near the inside fan unit) to help take dust, pollen, etc. out of the air that circulates in your home or building.

Something you might want to consider is getting a 'permanent' air filter for your furnace. This is a filter that you can wash and re-use, instead of the paper kind that you have to replace and throw away.

Helpful Accessories

Furnace Air Filters
Furnace Air Filters

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  • Allergy Control
  • Health & Safety
  • Senior Safety
  • Child Safety

The benefits of this task are moderate, as a dirty filter requires more energy to operate your air handler. Also, if people in your house have respiratory problems, then this task becomes more important.


The cost of this task is relatively low. It is estimated that this task should only take about 15 minutes to complete, and the task is relatively easy to do. No specialized tools are required. However, you do need to purchase the appropriate filter for your air handler in advance.

Other Routine Care Tasks

Forced Air Heating