A gas furnace is a key piece of equipment in a home. Most furnaces are installed centrally in the house but often are tucked away in a closet, up in the attic, or in the basement or crawl space. In other words, they may not be the easy to access. To help your home’s heating equipment live a good, long life, regular maintenance is strongly recommended. Just because the furnace is out of sight doesn’t mean it should be out of mind.
Many HVAC companies offer service agreements that include a regular scheduled maintenance program. Or maybe you’re a handy do-it-yourselfer who wants to get their hands dirty and take care of things themselves. If that’s you, here are a few furnace maintenance tips.
- Change the filter regularly. The filter prevents dirt from entering the furnace. Dirt and debris can build up on the blower fan and in the ductwork, which can also reduce air flow, wasting fuel and drastically lowering the unit’s efficiency. The filter may be changed monthly, quarterly or annually, depending on the type of filter and the conditions the furnace is operating under. Generally, we recommend changing the filter monthly. Make sure to use the proper size filter.
- Remember safety first. When maintaining your furnace, follow some basic safety practices. Most furnaces have a service switch that can be shut off so the unit won’t turn on during maintenance. Check for gas leaks and loose wires before you begin cleaning the furnace. If you smell gas smell or notice a loose wire, contact an HVAC professional.
- Clean the blower and ducts. The blower assembly is usually next to the filter, so the dust and dirt that penetrates or goes around the air filter goes to the blower. Use a damp cloth or vacuum to clean the blower, belts and pulleys to remove any accumulated dirt.
- Inspect the fan. After the dirt has been removed, make sure the fan spins smoothly and is properly secured. The bearings on the fan and motor may need lubricating, and if the fan is belt-driven, then the fan belt should be checked for proper tension.
Cleaning and maintaining a furnace is not a daunting task and is fairly inexpensive to complete. Proper maintenance will extend the service life of your equipment and help your furnace stay energy efficient.
By Kenn Garder, National Accounts Manager and Technical Support, NPI/GPI