Furnace Service, AFUE and What They Mean for You in the Rio Grande Valley

December 31, 2015

Curious temperature changes and the hope of early spring can let us down as we wait until the end of the winter season. With the unpredictable weather this time of year, it’s important to double check that your furnace service is done and that your furnace is set for any weather change. Part of owning and using a furnace is understanding the system and preparing for when it might need repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to know and can tell you what kind of productivity you can expect from your system. If you are unsure of your AFUE, this percentage can be clarified at your next furnace maintenance appointment from one of our experts at Cytech Heating & Cooling L.C..

So, what does this AFUE rating suggest 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 not as much energy efficiency paralleled to a new furnace each 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.

Considering the age of your furnace and the potential of overspending on your heating costs has hopefully offered some insight into the significance of your furnace’s AFUE. There are many factors that go into selecting a new furnace or remaining with your furnace service plan. Over time still, smaller efficiency levels can radically influence your energy usage, monthly bills and ease. Don’t ignore the AFUE rating of your furnace and consider it when determining whether it’s time for furnace replacement.

If you have any further uncertainties about furnaces, or you just want some help determining the AFUE rating of your existing furnace, give our professionals at Cytech Heating & Cooling L.C. a call at 956-381-1162.