picture of a man lowering his heating bill by learning about AFUE

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

Strange temperature changes and the expectation of early spring can keep us holding out as we wait until the end of winter. With the unpredictable weather this time of year, it’s important to make sure that your furnace service is complete and that your furnace is set for any weather shift. Part of owning and operating a furnace is being familiar with the system and preparing for when it might need repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to note and can inform you what kind of effectiveness you can look for from your system. If you are unaware of your AFUE, this percentage can be determined at your next furnace tune-up appointment from one of our specialists at Thornberry Bros Inc.

So, what does this AFUE rating mean for you? What types of things should you consider 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 every winter when your system is in use.
  • Think about your AFUE percentage in relation to money – if your AFUE is 75%, that means that for every $100 you devote to heating your home, only $75 is being used to heat your home.

Considering the age of your furnace and the potential of overspending on your heating costs has hopefully offered some perception into the weight of your furnace’s AFUE. There are many factors that go into choosing a new furnace or sticking to your furnace service plan. Over time though, decreased efficiency levels can radically effect your energy usage, monthly bills and comfort. 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 questions about furnaces, or you just want some help finding the AFUE rating of your current furnace, give our professionals at Thornberry Bros Inc a call at 859-745-1564 or arrange an appointment with us online.