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Save energy with clean filters! Try Filterscan Wifi.

How much are clogged air filters costing you?

Find out using the table below.

To find the right row, round your average total monthly spending on energy (electricity, gas, fuel oil, etc.) to the nearest hundred dollars. Not sure what that is? According to the Department of Energy, the average household spends $183 a month on home energy.

To find the right column you need to estimate how often you are running your system with a clogged filter. To do this, first determine how often you replace your air filter each year. If it's 4 or more times a year, then stop. Congratulatons! You are probably replacing the filter before it becomes clogged.

If it is less than 4 times a year, however, multiply that number by 3 and subtract the result from 12. That is the number of months you may be running your system with a clogged filter. For example, suppose you change your air filter 2 times a year, Then 12 - 3 * 2 = 6. Based on filter manufacturer recommendations for the most common home air filters, you could be running your system with a clogged filter for 6 months every year.

Where the appropriate row and column meet is an estimate of how much you would be saving every year if you never allowed the air filter to become clogged. For example, if you spend about $200 a month on energy and you only change your air filter twice a year, you could save $90 a year by always replacing your air filter as soon as it became clogged.

Money saved if you never run your system with a clogged air filter
    Number of months a year the filter is clogged
    3 6 9 12
Average Monthly spending on energy

$100 $23 $45 $68 $90
$200 $45 $90 $135 $180
$300 $68 $135 $203 $270

How did we create this table?

A clogged air filter full of dirt causes your heating and cooling system to run longer in order to keep the temperature constant. The Department of Energy (DOE) has estimated that once an air filter becomes clogged, the heating and cooling system is using 15% more energy than when the air filter was new. This inefficiency increases quickly as the filter become more and more clogged. The DOE has also estimated that, on average, half of a household's energy use if for heating and cooling. So a conservative estimate of what you can save from never running your system with a clogged air filter is to take half of your average monthly energy bill, multiply it by 15% and multiply that by the number of months the system is running with a clogged air filter. That is how we calculated each entry in the table. And remember that these are not just one-time savings, but continue year after year.

Clean air filters are energy efficient

So if saving a chunk of change on your utility bills isn’t motivation enough for you to swap air filters, do it for the planet. That seemingly trivial task can create significant monetary and environmental savings.

Additional tips on saving energy in your home:

  • Install a programmable thermostat that can adjust temperatures according to your schedule.
  • Apply sealing and insulating ducts to improve the efficiency of your heating and cooling system by as much as 20 percent— and sometimes much more.
  • Install energy-saving showerheads, faucets or flow restrictors, as well as low-flow toilets.
  • Put an insulating blanket on your water heater to conserve that heat energy.
  • Keep your water heater temperature no higher than 120°F.
  • Caulk or cover drafty windows.
  • Install dimmer switches, timers, or motion sensors to efficiently regulate the lighting in your home.

The solution to air filter clogs? FILTERSCAN air filter monitors!

Prevent air filter clogs by always replacing your air filter at the appropriate time. Products such as CleanAlert’s FILTERSCAN WiFi in combination with the AirFilterSentry Notification Service can help you determine when is the right time to change your air filter.