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

Furnace Service, AFUE and What They Mean for You in Portland Metro

Curious temperature changes and the desire for early spring can keep us holding out as we wait until the end of the cold season. With the unpredictable weather this time of year, it’s important to make sure that your furnace service is taken care of and that your furnace is ready for any weather shift. Part of having and utilizing a furnace is knowing the system and understanding when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to recognize and can inform you what kind of productivity you can look for from your system. If you are unsure of your AFUE, this percentage can be determined at your next furnace service appointment from one of our specialists at Central Air Inc.

So, what does this AFUE rating indicate for you? What kinds 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 than with a new furnace each 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.

Taking into account the age of your furnace and the possibility of overspending on your heating costs has hopefully provided some understanding into the significance of your furnace’s AFUE. There are many elements that go into selecting a new furnace or sticking to your furnace service plan. Over time however, decreased efficiency levels can significantly effect your energy usage, monthly bills and ease. Don’t overlook 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 existing furnace, give our professionals at Central Air Inc a call at 503-656-1908 or set up an appointment with us online.