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

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

Interesting temperature changes and the hope of early spring can let us down as we wait until the end of winter. With the erratic weather this time of year, it’s crucial to ensure that your furnace service is done and that your furnace is set for any weather swing. Part of owning and operating a furnace is being familiar with the system and understanding when it might need repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a significant measurement to note and can disclose to you what kind of productivity you can anticipate from your system. If you are not informed of your AFUE, this percentage can be clarified at your next furnace tune-up appointment from one of our experts at Polestar Plumbing, Heating & Air Conditioning.

So, what does this AFUE rating indicate for you? What sorts 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 paralleled to a new furnace each 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.

Taking into account the age of your furnace and the likelihood of overspending on your heating costs has hopefully offered some perception into the importance 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 still, lower efficiency levels can radically impact your energy usage, monthly bills and coziness. Don’t ignore the AFUE rating of your furnace and consider it when deciding 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 experts at Polestar Plumbing, Heating & Air Conditioning a call at 913-432-3342 or set up an appointment with us online.