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

Interesting temperature changes and the hope of early spring can mess with us as we wait until the end of winter. With the random weather this time of year, it’s vital to double check that your furnace service is taken care of and that your furnace is ready for any weather shift. Part of owning and utilizing a furnace is understanding the system and knowing 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 unsure of your AFUE, this percentage can be clarified at your next furnace service appointment from one of our experts at Giordanos Heating and Air Conditioning.

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


  • The older your furnace is, the smaller 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 taken to heat your home.

Considering the age of your furnace and the possibility of overspending on your heating costs has hopefully offered some perception into the weight of your furnace’s AFUE. There are many elements that go into choosing a new furnace or sticking to your furnace service plan. Over time still, lower 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 inquiries about furnaces, or you just want some help determining the AFUE rating of your present furnace, give our experts at Giordanos Heating and Air Conditioning a call at 203-734-7648.

Back To Blog