A furnace refers to the heating unit in a warm-air, or forced-air, system. After air is heated in the furnace, a blower forces it through ducts. The warm air is then released through vents or registers in your home.
As with any piece of equipment, many of the sounds you will hear from your furnace are perfectly normal, especially when it starts and stops operating.
To get more familiar with its sounds, listen closely the next time your furnace turns on and starts heating your home. Pay attention to the various sounds it makes and observe how long the sound generally continues. By doing this, you’ll be more aware of anything that changes, such as a noise you’ve never heard before.
To help you distinguish between minor and major problems, here’s a list of common sounds you may hear from your furnace. These are general guidelines provided solely for educational purposes. A correct diagnosis can only be made after a system inspection by an oilheat service professional. (This is just one reason why we always promote the value of annual maintenance!)
All warm-air systems have an air filter to screen out dust and other impurities. In general, you should check the filter’s condition about once a month during the heating season and change or clean it when necessary. Refer to your owner’s manual for instructions or contact an oilheat service contractor if you’re not familiar with this procedure.
If you have a whole-house air cleaner connected to your furnace, you can get the most out of it by keeping the thermostat setting to “on” instead of “auto.” This provides continuous circulation and filtration of indoor air and helps maintain a balanced temperature throughout your home.
If you have any concerns about the operation of your heating system, please get in touch with an oilheat service professional and request a furnace inspection.
Did you know that you can qualify for rebates when you install a new oil furnace? Read more about oilheat rebates in South Carolina.