How to Install Your Furnace Air Filter
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How to Install Your Furnace Air Filter

Regularly changing the filters in your heating system is an important part of keeping everything in good shape. However, if you’ve never changed an air filter on your own before, it can seem a little confusing. Here is a step-by-step guide to changing the filter on your own.

Turn Off the Furnace and Examine the Old Filter

Filters are not a one-size-fits-all deal. Remove the existing furnace filter after you’ve safely shut off your furnace, then look at exactly what filter size and type you’ll need. Some filters can even be reused if you clean it periodically, so make sure that you actually need to buy new ones before you dash to the store.

Also, the old filter will have an arrow on it indicating in which direction the air flows. Make a note of that so you can install the new filter properly later on.

Buy a Quality Replacement Filter

Don’t just purchase the first furnace filter that looks like it will do the job. Check out online readings to make sure you are buying a model that will effectively clean your air as it flows through your home. Some brands are adept at removing dust and smoke while others barely make a difference in your air-quality. Do your research to make sure that you are installing an air filter that will actually do its job well.

Install It Correctly

Take the new filter to the proper place and refer to your previous note about the direction of airflow. The filter will have markings indicating how it should be placed, so don’t just slap it on and hope it’s facing the right direction. Then, record when you changed the filter so you’ll know when it needs to be replaced again.

If you’re not comfortable replacing your dirty filters or handling other issues with your heating system, consider hiring a company like Robert B. Payne to do it for you. The HVAC company will ensure that your system is running smoothly and address any problems they spot. To schedule an appointment or speak to a representative, call 540-373-5876 or visit

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