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

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

Strange temperature changes and the desire for 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 vital to double check that your furnace service is complete and that your furnace is set for any weather change. Part of owning and utilizing a furnace is being familiar with the system and understanding when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a significant measurement to recognize and can disclose to you what kind of effectiveness you can look for from your system. If you are unaware of your AFUE, this percentage can be verified at your next furnace service appointment from one of our experts at Banister's Heating & Air Conditioning Services.

So, what does this AFUE rating mean for you? What kinds of things should you think on with AFUE?


  • The older your furnace is, the littler its AFUE will also be. This means not as much energy efficiency compared to a new furnace in the winter when your system is in use.
  • Consider 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 spent to heat your home.

Bearing in mind the age of your furnace and the possibility of overspending on your heating costs has hopefully offered some insight into the weight of your furnace’s AFUE. There are many things that go into choosing a new furnace or staying in your furnace service plan. Over time still, decreased efficiency levels can drastically impact your energy usage, monthly bills and comfort. Don’t overlook the AFUE rating of your furnace and think of it when deciding 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 existing furnace, give our specialists at Banister's Heating & Air Conditioning Services a call at 575-887-7777 or schedule an appointment with us online.