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

Strange temperature changes and the desire for early spring can mess with us as we wait until the end of winter. With the unpredictable weather this time of year, it’s important to ensure that your furnace service is complete and that your furnace is ready for any weather shift. Part of having and utilizing a furnace is knowing the system and knowing when it might call for repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to note and can disclose to you what kind of efficiency you can look for from your system. If you are not informed of your AFUE, this percentage can be determined at your next furnace maintenance appointment from one of our specialists at Cytech Heating & Cooling.

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 reduced energy efficiency than with a new furnace each 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 use heating your home, only $75 is being used to heat your home.

Taking into account the age of your furnace and the potential of overspending on your heating costs has hopefully provided some perception into the importance 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 however, smaller efficiency levels can significantly effect your energy usage, monthly bills and comfort. Don’t ignore the AFUE rating of your furnace and consider it when choosing whether it’s time for furnace replacement.

If you have any further inquiries about furnaces, or you just want some help determining the AFUE rating of your current furnace, give our specialists at Cytech Heating & Cooling a call at 956-630-3522 or schedule an appointment with us online.

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