picture of a man lowering his heating bill by learning about AFUE

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

Strange 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 unpredictable weather this time of year, it’s vital to ensure that your furnace service is taken care of and that your furnace is prepared for any weather swing. Part of owning and operating a furnace is understanding the system and preparing for when it might call for repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to recognize and can tell you what kind of efficiency you can anticipate from your system. If you are not informed of your AFUE, this percentage can be verified at your next furnace tune-up appointment from one of our specialists at PWA Heating & Cooling Inc.

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


  • The older your furnace is, the smaller its AFUE will also be. This means reduced energy efficiency paralleled to a new furnace every winter when your system is in use.
  • Compare your AFUE percentage in relation to money – if your AFUE is 75%, that means that for every $100 you spend on heating your home, only $75 is taken 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 insight into the weight of your furnace’s AFUE. There are many elements that go into selecting a new furnace or sticking to your furnace service plan. Over time however, decreased efficiency levels can drastically influence your energy usage, monthly bills and comfort. 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 questions about furnaces, or you just want some help verifying the AFUE rating of your existing furnace, give our specialists at PWA Heating & Cooling Inc a call at 815-768-6656 or set up an appointment with us online.