Furnace Service, AFUE and What They Mean for You in Rock Hill

Interesting temperature changes and the hope of early spring can let us down as we wait until the end of the cold season. With the erratic weather this time of year, it’s vital to make sure that your furnace service is done and that your furnace is prepared for any weather shift. Part of owning and operating a furnace is knowing the system and knowing when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to recognize and can inform you what kind of productivity you can expect from your system. If you are unsure of your AFUE, this percentage can be determined at your next furnace service appointment from one of our experts at US Air Heating and Cooling.

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


  • The older your furnace is, the littler its AFUE will also be. This means less energy efficiency than with a new furnace in the winter when your system is in use.
  • Compare 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 being used to heat your home.

Considering the age of your furnace and the possibility of overspending on your heating costs has hopefully provided some insight into the significance of your furnace’s AFUE. There are many elements that go into selecting a new furnace or staying in your furnace service plan. Over time still, lower efficiency levels can significantly effect your energy usage, monthly bills and comfort. Don’t ignore the AFUE rating of your furnace and think of 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 professionals at US Air Heating and Cooling a call at 803-980-4328 or arrange an appointment with us online.

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