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Furnace Service, AFUE and What They Mean for You in Franklin

December 31, 2015

Interesting temperature changes and the hope of early spring can keep us holding out as we wait until the end of the cold season. With the random weather this time of year, it’s vital to double check that your furnace service is complete and that your furnace is ready for any weather swing. Part of having and operating a furnace is knowing the system and understanding when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to recognize and can tell you what kind of effectiveness you can look for from your system. If you are not informed of your AFUE, this percentage can be clarified at your next furnace service appointment from one of our professionals at Winters Heating and Cooling.

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


  • The older your furnace is, the lower its AFUE will also be. This means less energy efficiency than with a new furnace in the winter when your system is in use.
  • Compare your AFUE percentage with regard to money – if your AFUE is 75%, that means that for every $100 you devote to heating your home, only $75 is spent to heat your home.

Taking into account the age of your furnace and the possibility of overspending on your heating costs has hopefully given some perception into the significance of your furnace’s AFUE. There are many things that go into choosing a new furnace or remaining with your furnace service plan. Over time though, decreased efficiency levels can drastically influence your energy usage, monthly bills and ease. Don’t ignore the AFUE rating of your furnace and think of it when determining whether it’s time for furnace replacement.

If you have any further uncertainties about furnaces, or you just want some help finding the AFUE rating of your present furnace, give our experts at Winters Heating and Cooling a call at 317-406-5783.