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Furnace Service, AFUE and What They Mean for You in West Valley

Strange temperature changes and the hope of early spring can mess with us as we wait until the end of the winter season. With the erratic weather this time of year, it’s vital to double check that your furnace service is done and that your furnace is ready for any weather change. Part of having and operating a furnace is understanding the system and preparing for when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to know and can inform you what kind of efficiency you can look for from your system. If you are unsure of your AFUE, this percentage can be determined at your next furnace tune-up appointment from one of our professionals at Select Comfort System Heating & Air Conditioning.

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 lower its AFUE will also be. This means reduced energy efficiency than with 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 spend on heating your home, only $75 is taken to heat your home.

Bearing in mind the age of your furnace and the possibility of overspending on your heating costs has hopefully given some insight into the importance of your furnace’s AFUE. There are many factors that go into picking a new furnace or staying in your furnace service plan. Over time though, lower efficiency levels can drastically effect your energy usage, monthly bills and coziness. Don’t ignore the AFUE rating of your furnace and reflect on it when determining whether it’s time for furnace replacement.

If you have any further inquiries about furnaces, or you just want some help verifying the AFUE rating of your existing furnace, give our experts at Select Comfort System Heating & Air Conditioning a call at 801-305-4777 or arrange an appointment with us online.