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

Curious temperature changes and the expectation 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 important to double check that your furnace service is done and that your furnace is set for any weather swing. Part of possessing and operating 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 central measurement to note and can tell you what kind of efficiency you can anticipate from your system. If you are unsure of your AFUE, this percentage can be clarified at your next furnace tune-up appointment from one of our professionals at Scott Temperature.

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


  • The older your furnace is, the smaller its AFUE will also be. This means reduced energy efficiency compared to a new furnace in the winter when your system is in use.
  • Compare 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 spent to heat your home.

Considering the age of your furnace and the likelihood of overspending on your heating costs has hopefully provided some insight into the importance of your furnace’s AFUE. There are many elements that go into choosing a new furnace or staying in your furnace service plan. Over time still, decreased efficiency levels can significantly impact your energy usage, monthly bills and comfort. Don’t overlook 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 verifying the AFUE rating of your existing furnace, give our professionals at Scott Temperature a call at 785-269-0465.

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