How Long Does a Furnace Last? Your Questions Answered
Most furnaces last between 10 and 15 years, with some models managing to reach 20 years before needing replacement. Explore answers to common questions around energy efficiency, age, and maintenance to make an informed decision about when it’s time for an upgrade.
Why Your Furnace’s Age Matters
While it’s understandable to try to save money by continuing to run an older furnace, it might actually be costing you more in the long run. Old furnaces often struggle to heat a room efficiently, requiring longer run times to achieve what newer furnaces can do quickly.
The age of a furnace can also contribute to significantly higher energy bills. Even worse, older furnaces are more likely to break down without warning due to worn-out parts.

5 Signs You Need to Replace Your Furnace
How long should a furnace last? The estimated lifespan is around 10 years with the proper care and maintenance.
If you notice any of the following warning signs of furnace trouble, you may need a replacement sooner:
-
Unusually high energy bills compared to previous years
-
Constant cycling
-
Extremely slow heating
-
Yellow pilot light
-
Strange noises
-
Unpleasant odors
The Short-Term and Long-Term Benefits of a New Furnace
Investing in a brand-new furnace may seem unnecessary when your current model technically still works. However, the short-term and long-term benefits can have positive impacts on everything from your finances to your overall well-being. Review some of the benefits of upgrading your heating system.
Cleaner Indoor Air
An old furnace has a tendency to leave the air overly dry or dusty. Switching to a new model may provide relief from sinus discomfort, dry eyes, and asthma symptoms.
Lower Energy Bills
Tired of spending too much on energy bills, especially during the fall and winter? Energy-efficient heaters warm up homes much faster, offering a more comfortable atmosphere at a lower cost.
More Comfortable Home
Say goodbye to dealing with on-and-off cycling or painfully slow heating. An energy-efficient furnace can significantly improve the comfort of your home, especially when paired with duct or window sealing.
Reduced Risk of Breakdowns
Have you ever worried about your furnace breaking down in the middle of winter? A new furnace is significantly less likely to experience issues such as blocked vents, corroded sensors, or worn parts.
However, a new furnace still requires regular maintenance to keep these issues at bay. You can extend your furnace’s lifespan through simple actions, such as swapping out filters and keeping up with yearly tune-ups.
The Average Cost of a New Furnace
Now that you understand how long a furnace can last, you may be wondering about what you’ll have to spend when the time comes. Ultimately, the cost of a new furnace depends on factors like the model you choose and the size of your home. However, the increased comfort in your home and vastly reduced energy bills will make the investment more than worthwhile.
We offer flexible financing options for new and replacement furnace services. You can also utilize our Pro Service Plan to enjoy discounts and priority service for yearly maintenance.
Need a quote? Give us a call and we’ll be happy to provide an estimate for a new furnace.
Why Choose Comfort for Heating Installation?
At Comfort Heating & Air, we’re proud to be a local business that provides central Kentucky homeowners with friendly service, great pricing, and undeniable results. Whether you need a new furnace installation or an inspection on your current model, our customers enjoy our Exceptional Service Guarantee.
Are you considering a new furnace installation? Whether you have questions or need an inspection, our friendly and experienced team is standing by to help. Schedule an Appointment today for your heating needs today.