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

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

Strange temperature changes and the expectation of 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 vital to ensure that your furnace service is complete and that your furnace is set for any weather shift. Part of owning and operating a furnace is understanding the system and understanding when it might call for repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a significant measurement to note and can tell you what kind of efficiency you can anticipate from your system. If you are unaware of your AFUE, this percentage can be determined at your next furnace maintenance appointment from one of our experts at Street Heating & Sheet Metal Inc.

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


  • The older your furnace is, the littler its AFUE will also be. This means not as much energy efficiency compared to a new furnace every winter when your system is in use.
  • Think about your AFUE percentage proportionate 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.

Considering the age of your furnace and the likelihood of overspending on your heating costs has hopefully provided some perception into the importance of your furnace’s AFUE. There are many factors that go into choosing a new furnace or staying in your furnace service plan. Over time still, smaller efficiency levels can radically impact your energy usage, monthly bills and ease. Don’t overlook the AFUE rating of your furnace and consider it when choosing 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 professionals at Street Heating & Sheet Metal Inc a call at 605-342-5107 or schedule an appointment with us online.