How AFUE affects your bill

Furnace Service, AFUE and What They Mean for You in Wisconsin Rapids

Strange temperature changes and the expectation of early spring can let us down as we wait until the end of winter. With the erratic weather this time of year, it’s important to ensure that your furnace service is complete and that your furnace is prepared for any weather change. Part of owning and using a furnace is being familiar with the system and knowing when it might call for repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a significant measurement to know and can inform 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 maintenance appointment from one of our specialists at Rapids Sheet Metal Works Inc.

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


  • The older your furnace is, the smaller its AFUE will also be. This means not as much energy efficiency compared 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.

Bearing in mind the age of your furnace and the potential of overspending on your heating costs has hopefully given some insight into the weight of your furnace’s AFUE. There are many factors that go into picking a new furnace or sticking to your furnace service plan. Over time though, smaller efficiency levels can radically influence your energy usage, monthly bills and ease. Don’t disregard the AFUE rating of your furnace and consider it when choosing 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 present furnace, give our specialists at Rapids Sheet Metal Works Inc a call at 715-421-5555 or set up an appointment with us online.