How can I determine the age of my furnace?

March 28, 2019

When you move into a new home, there is a lot to take in and consider as you get settled in. You’re figuring out all of the new appliances and different spaces. For some homeowners, it also means contemplating what upgrades or updates need to be made at some point. It may not always be top of mind, but your heating and cooling system should be on the list of potential to-dos. It plays a key role in home comfort, so learning a little bit more about your system is very valuable.

As long as they are working without challenges, we don’t pay a lot of care to our furnaces. But as soon as it goes out, or causes problems, we absolutely notice. That’s why it’s a worthy idea to find out how old your furnace is. Then you have an understanding of what you might deal with down the road. And this doesn’t just apply to homeowners moving into a new space. Anyone who isn’t clear how old their furnace is should take time and figure it out.

How can you find out how old your furnace is?

Your furnace should have a sticker located someplace on the exterior or interior paneling. If you don’t see a sticker with the model and serial number on the outer panels, find where the paneling opens up and look if it’s located inside that door.

Write down—or take a photo of—the serial number to keep for your records. Then visit the manufacturer’s website or search for guidelines on how to determine the manufacturing date. You may try searching for “find manufacturing date of YOUR BRAND furnace.” The serial number usually provides insight into the age of your system, but it does vary among brands. For example, for some brands, the first four numbers represent the year and month it was manufactured. In the photo below, the serial number means this particular system was made in July 2015.

Serial number on a furnace 

If you are still having challenges, you can communicate with the manufacturer directly, or contact Temperature Doctors Heating & Cooling, Inc for assistance.

Why is the age of your furnace significant?

Usually, when you’ve had a furnace about 15 years, it’s time to start searching for a replacement system to help improve efficiency and overall operations. Newer models often have higher energy efficiency ratings and you’ll definitely benefit from the advancements in technology over the recent years.

You don’t have to rely on age alone, there are other signs that indicate it might be time to look for a new furnace. Some of these signs include:

  • Rise in energy costs without major adjustments to the thermostat.
  • More regular and costly repairs to fix the furnace.
  • Reduction in home comfort levels—you never seem to feel warm enough.

If you have questions about whether it’s time for a furnace replacement, or if you want one of the most experienced technicians in Rockford to provide you with some guidance, we’re here for you. You can call us at (815)914-6197 or arrange an appointment with us online.