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

Interesting temperature changes and the hope of early spring can keep us holding out as we wait until the end of winter. With the unpredictable weather this time of year, it’s crucial to ensure that your furnace service is taken care of and that your furnace is ready for any weather swing. Part of owning and operating a furnace is understanding the system and knowing when it might need repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to know and can disclose to you what kind of productivity you can expect from your system. If you are unaware of your AFUE, this percentage can be clarified at your next furnace service 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 consider with AFUE?


  • The older your furnace is, the lower its AFUE will also be. This means reduced energy efficiency compared 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 insight into the weight of your furnace’s AFUE. There are many elements that go into choosing a new furnace or remaining with your furnace service plan. Over time however, lower efficiency levels can drastically impact your energy usage, monthly bills and ease. Don’t ignore the AFUE rating of your furnace and reflect on 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.

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