man plumbing forced air heating system
Photo: David Carmack
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Change Your Furnace Filter

You can't see this, but you'll feel it: If you have forced-air heating, change the furnace filter—before you start the heating season. You'll notice a difference in the air quality, and your furnace will run more efficiently.

Time: 10 minutes

Richard Trethewey, Plumbing and Heating Expert
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