Furnace Service, AFUE and What They Mean for You in Lake Forest

Interesting temperature changes and the expectation of early spring can mess with us as we wait until the end of the cold season. With the random weather this time of year, it’s crucial to ensure that your furnace service is complete and that your furnace is prepared for any weather swing. Part of owning and utilizing a furnace is knowing the system and preparing for when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to note and can disclose to you what kind of efficiency you can anticipate from your system. If you are unaware of your AFUE, this percentage can be determined at your next furnace service appointment from one of our professionals at 1st Choice Heating & Air Conditioning, 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 littler its AFUE will also be. This means less energy efficiency than with a new furnace every winter when your system is in use.
  • Think about 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.

Considering the age of your furnace and the likelihood of overspending on your heating costs has hopefully given some understanding into the weight of your furnace’s AFUE. There are many factors that go into choosing a new furnace or remaining with your furnace service plan. Over time though, smaller efficiency levels can drastically influence your energy usage, monthly bills and ease. Don’t overlook the AFUE rating of your furnace and think of it when choosing whether it’s time for furnace replacement.

If you have any further uncertainties about furnaces, or you just want some help finding the AFUE rating of your existing furnace, give our professionals at 1st Choice Heating & Air Conditioning, Inc. a call at 949-204-0859.

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