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

Curious temperature changes and the hope of early spring can mess with us as we wait until the end of the winter season. With the unpredictable weather this time of year, it’s vital to double check that your furnace service is complete and that your furnace is set for any weather swing. Part of having and using a furnace is understanding the system and preparing for when it might require repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is a central measurement to recognize and can inform you what kind of effectiveness you can look for from your system. If you are not informed of your AFUE, this percentage can be clarified at your next furnace service appointment from one of our specialists at McFadden Heating & Cooling.

So, what does this AFUE rating mean for you? What sorts of things should you consider with AFUE?


  • The older your furnace is, the lower 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 in relation 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 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 staying in your furnace service plan. Over time though, smaller efficiency levels can drastically influence your energy usage, monthly bills and coziness. Don’t overlook 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 verifying the AFUE rating of your present furnace, give our experts at McFadden Heating & Cooling a call at 1-866-781-0111 or schedule an appointment with us online.