Replacing Your Furnace Filter

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A clean furnace filter protects your furnace from contaminants. Replacing your filter is easy with step-by-step instructions from a residential construction consultant in this free video on replacing your furnace filter.

Part of the Video Series: Home Repair & Maintenance
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Video Transcript

Hi, I'm Tyler Elliott with Elliott Remodeling, and in this segment I'm going to show you how to replace your furnace filter. In forced air heating systems, the filter is the first line of defense against any sort of contaminants getting inside of your furnace. Your furnace filter is usually located somewhere other than where your furnace is, although occasionally it is located on the furnace. In this case, in the ceiling of the second floor. Replacing your filter is really quite simple. Simply open the grate, remove the old filter and place the new one in and close the grate. All you need to do is make sure that they are the same size, usually 20 X 25 X 1 or 20 X 20 X 1, either of which are both standard sizes for residential homes. A good time to replace your filter is every six months, although depending on your area and how much debris is in your house, you may need to do it more often. Once again, I am Tyler Elliott, and that's how you replace your furnace filter.


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