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

December 31, 2015

Interesting temperature changes and the desire for early spring can keep us holding out as we wait until the end of winter. With the erratic weather this time of year, it’s crucial to double check that your furnace service is taken care of 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 call for repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a significant measurement to note and can inform you what kind of effectiveness you can expect from your system. If you are not informed of your AFUE, this percentage can be clarified at your next furnace service appointment from one of our professionals at Oak Grove Heating & Air Conditioning.

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


  • The older your furnace is, the littler its AFUE will also be. This means less energy efficiency than with a new furnace every winter when your system is in use.
  • Consider 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.

Taking into account the age of your furnace and the likelihood of overspending on your heating costs has hopefully provided some understanding into the significance of your furnace’s AFUE. There are many factors that go into picking a new furnace or remaining with your furnace service plan. Over time still, decreased efficiency levels can drastically impact your energy usage, monthly bills and ease. Don’t disregard the AFUE rating of your furnace and reflect on it when deciding 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 experts at Oak Grove Heating & Air Conditioning a call at 601-292-9763.