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

December 31, 2015

Interesting temperature changes and the expectation of early spring can let us down as we wait until the end of winter. 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 set for any weather change. Part of having 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 central measurement to note and can disclose to you what kind of productivity you can look for from your system. If you are not informed of your AFUE, this percentage can be determined at your next furnace maintenance appointment from one of our professionals at Lanz Furnace and Fireplace.

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 paralleled to a new furnace in the winter when your system is in use.
  • Consider your AFUE percentage proportionate 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.

Bearing in mind the age of your furnace and the likelihood 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 staying in your furnace service plan. Over time still, smaller efficiency levels can radically influence your energy usage, monthly bills and comfort. Don’t ignore the AFUE rating of your furnace and think of it when determining whether it’s time for furnace replacement.

If you have any further uncertainties about furnaces, or you just want some help determining the AFUE rating of your present furnace, give our specialists at Lanz Furnace and Fireplace a call at 608-291-3606.