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

Curious temperature changes and the expectation of early spring can let us down as we wait until the end of the winter season. With the erratic weather this time of year, it’s vital to make sure that your furnace service is complete and that your furnace is ready for any weather shift. Part of having and operating a furnace is knowing 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 know and can inform you what kind of efficiency you can expect from your system. If you are unsure of your AFUE, this percentage can be verified at your next furnace maintenance appointment from one of our professionals at Heartland Heating & Cooling.

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 reduced energy efficiency than with a new furnace every 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 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 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 comfort. Don’t disregard the AFUE rating of your furnace and reflect on it when determining whether it’s time for furnace replacement.

If you have any further uncertainties about furnaces, or you just want some help finding the AFUE rating of your present furnace, give our experts at Heartland Heating & Cooling a call at 515-344-3579.

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