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Picture of How to Do Seasonal Furnace Maintenance
While not everyone does it, it’s extremely important to perform furnace maintenance to ensure that it’s running effectively and safely. It’s actually not all that difficult—pretty much anyone can do it, and if you’re a homeowner, you should know how to do it.

Materials:

• New air filter
• Light oil for motor bearing

Tools:

• Screwdriver
• Vacuum (with long snorkel attachment)

Step 1: Turn off furnace power

Picture of Turn off furnace power
The first step is to turn off the gas and power that operates your furnace. There should be a switch located close to your furnace. If this is not the case, go to your electrical service panel and turn off the proper breaker. To turn off the gas, locate the gas line, which is connected to the furnace via a black pipe and turn it off by using the shut-off valve.