Furnace Service, AFUE and What They Mean for You in Jefferson City

December 31, 2015

Curious 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 crucial to ensure that your furnace service is done and that your furnace is prepared for any weather swing. Part of owning and using a furnace is knowing the system and knowing when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to note and can disclose to you what kind of efficiency you can anticipate from your system. If you are unaware of your AFUE, this percentage can be clarified at your next furnace maintenance appointment from one of our specialists at Stieferman Heating Company Inc.

So, what does this AFUE rating suggest for you? What kinds of things should you think on with AFUE?


  • The older your furnace is, the smaller its AFUE will also be. This means less energy efficiency paralleled to a new furnace in the winter when your system is in use.
  • Think about your AFUE percentage in relation to money – if your AFUE is 75%, that means that for every $100 you devote to heating your home, only $75 is taken to heat your home.

Taking into account the age of your furnace and the likelihood of overspending on your heating costs has hopefully offered some understanding into the weight of your furnace’s AFUE. There are many factors that go into selecting a new furnace or remaining with your furnace service plan. Over time however, decreased efficiency levels can drastically impact your energy usage, monthly bills and ease. Don’t ignore the AFUE rating of your furnace and consider it when determining whether it’s time for furnace replacement.

If you have any further inquiries about furnaces, or you just want some help determining the AFUE rating of your existing furnace, give our experts at Stieferman Heating Company Inc a call at 573-203-3908.