If the furnace is dirty it uses more fuel, works less efficiently, and costs you more money. Stay warm in the wintertime and save by cleaning your furnace. If you’ve never done it before, don’t worry. This guide on how to clean a furnace will make it easy.


How to Clean a Furnace


Safety First

Before you begin, take a few steps to ensure your safety.

  • Turn off your thermostat. If it doesn’t turn off, turn it to its lowest possible setting.
  • You can turn off the appropriate circuit breaker or turn off the power going to the machine itself.
  • If you have a gas heater, turn your gas off as well.
  • The tubes leading from the furnace are the outputs and they can get very hot. Don’t touch!


How to Clean the Exterior

A clean furnace should include cleaning the exterior for the simple reason that, dust plus heat can equal a burning smell. However, we did just mention that the outputs, part of the exterior, can get very hot. To remove cobwebs, dust, and other debris, use a long-handled duster. Start from the top and move your way to the bottom of the output.

How to clean a furnace filter


How to Clean the Filter

Locate your service panel and open it up (you may or may not need a screwdriver). Locate your filter and check it. If it’s hard to see through, take action. Some filters are reusable and can be cleaned, others just have to be replaced (disposable filters will have cardboard frames while permanent models will be made of metal or fiberglass).

If your filter can be cleaned, all you have to do is rinse. Let the filter dry thoroughly before replacing it.

The benefit of a clean filter is cleaner air! You want your filter to efficiently remove pollen, dust, and other particulates from your home, so be sure not to forget this chore.


How to Clean the Interior

Note: We are going to say one more time to make sure the furnace has no power! Cleaning a powered-on furnace could result in shock and serious injury,

Use a vacuum extension and clean out the dust and debris from the fan, the motor, and other parts. Just get as much dust as you can and be careful not to disconnect any wiring. After vacuuming, use a cloth to wipe up any dust that the vacuum might have missed.


Cleaning the interior of a furnance


Clean a Furnace like a Pro

If you stick to just the basics, it’s easy to clean a furnace like a pro. It also has huge benefits for the health of your home and your wallet. If you are not confident taking on this chore, contact a professional to help you.