beginner furnace maintenance

Furnace Filter Install: Beginner’s Guide, Year-Round Comfort

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An illustrated guide titled "Furnace Filter Install: Beginner's Guide, Year-Round Comfort," demonstrating a simple three-step process to replace an air filter—locating the furnace slot, removing the dirty old filter, and sliding in a clean new one—alongside a depiction of fresh airflow providing cozy winter heat and relaxing summer cooling.

Last January, our field inspector opened a furnace cabinet and found a 16x24x1 filter seated in a slot built for a 16x25x1. That quarter-inch gap had spent four months routing unfiltered air straight onto the evaporator coil. The homeowner’s utility bill had climbed nearly 20 percent, and they had no explanation for why. In our … Read more