man replacing a furnace filter
March 16, 2023

Are you looking at your aging furnace and wondering how long a furnace should last? Though it may seem like a good idea to hold off on furnace replacement for as long as possible, you could be spending more on repairs and expensive heating costs from inefficient operation. Here’s what you need to know about the factors that can affect the lifespan of your furnace, and when to know when it’s time for a replacement. 

How Long Do Furnaces Last?

The life expectancy of a furnace is dependent on how well it has been maintained. Though the average lifespan of a furnace is about 15 to 30 years, if it’s not well taken care of, that can be severely decreased. If your furnace is oversized or was incorrectly installed—which are both more common than you think—it can also have a reduced lifespan. 

The Department of Energy reports that a 20 year old furnace is around 20% less efficient than newer, high-efficiency models. An aging furnace is also more vulnerable to cracks and damages that can lead to carbon monoxide leaks in your California home. Here are some other signs that your furnace might need to be replaced:

  • Frequent need of repairs

  • Expensive repair costs

  • Uneven room temperatures

  • Large increases in your energy bills

How To Make Your Furnace Last Longer

The most important thing that you can do to extend the life of your furnace is regular maintenance. During a tune-up, an experienced technician will inspect your furnace to ensure safe and efficient operation. Technicians are also trained to look for early signs of damage to avoid the future need of costly emergency repairs. 

Greiner makes maintenance easy with our Maintenance Value Plan. For $14.95 a month, you can become a MVP Club member and get benefits like:

  • 2 Precision tune-ups per year of your heating and cooling system

  • Water heater safety inspection

  • Priority scheduling

  • 20% discounts on repairs

  • 75% discount on diagnostic house calls

  • Peace of mind 12-month repair guarantee

California Furnace Services From Greiner Heating, Air, & Solar 

If your furnace is getting older, it might be time to upgrade to a high-efficiency furnace rather than continue with repairs. The team of experts at Greiner can help determine the lifespan of your furnace with honesty you can trust. We provide industry-leading furnace services throughout the Central Valley region. 

Find out the lifespan of your furnace. Call 916-545-1784 or contact us online.

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