Furnace Service, AFUE and What They Mean for You in Des Moines

Strange temperature changes and the desire for early spring can let us down as we wait until the end of the winter season. With the random weather this time of year, it’s crucial to double check that your furnace service is taken care of and that your furnace is ready for any weather swing. Part of having and utilizing a furnace is understanding the system and understanding when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to know and can inform you what kind of efficiency you can look for from your system. If you are not informed of your AFUE, this percentage can be clarified at your next furnace tune-up appointment from one of our experts at Kohles & Bach Heating & Cooling.

So, what does this AFUE rating suggest for you? What sorts of things should you consider with AFUE?


  • The older your furnace is, the smaller its AFUE will also be. This means not as much energy efficiency paralleled to a new furnace each winter when your system is in use.
  • Think about your AFUE percentage with regard 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.

Considering the age of your furnace and the potential of overspending on your heating costs has hopefully provided some insight into the significance of your furnace’s AFUE. There are many things that go into selecting a new furnace or sticking to your furnace service plan. Over time however, lower efficiency levels can drastically effect your energy usage, monthly bills and ease. Don’t overlook 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 finding the AFUE rating of your existing furnace, give our specialists at Kohles & Bach Heating & Cooling a call at 515-207-6569.

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