Furnace Service, AFUE and What They Mean for You in Elk River

December 31, 2015

Curious temperature changes and the hope of early spring can let us down as we wait until the end of the winter season. With the unpredictable weather this time of year, it’s crucial to double check that your furnace service is done and that your furnace is prepared for any weather swing. Part of possessing and operating a furnace is knowing the system and preparing for when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to note and can inform you what kind of efficiency you can look for from your system. If you are unsure of your AFUE, this percentage can be verified at your next furnace tune-up appointment from one of our experts at Home Comfort Heating & Air.

So, what does this AFUE rating suggest for you? What types of things should you take into account with AFUE?


  • The older your furnace is, the lower its AFUE will also be. This means not as much energy efficiency paralleled to a new furnace in the winter when your system is in use.
  • Consider your AFUE percentage in relation to money – if your AFUE is 75%, that means that for every $100 you use heating your home, only $75 is spent to heat your home.

Bearing in mind the age of your furnace and the potential of overspending on your heating costs has hopefully provided some perception into the significance of your furnace’s AFUE. There are many elements that go into picking a new furnace or sticking to your furnace service plan. Over time though, smaller efficiency levels can radically effect your energy usage, monthly bills and coziness. Don’t ignore the AFUE rating of your furnace and consider it when deciding whether it’s time for furnace replacement.

If you have any further questions about furnaces, or you just want some help verifying the AFUE rating of your current furnace, give our experts at Home Comfort Heating & Air a call at 763-276-0617.