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

Strange temperature changes and the hope of early spring can keep us holding out as we wait until the end of the cold season. With the erratic weather this time of year, it’s vital to make sure that your furnace service is taken care of and that your furnace is set for any weather swing. Part of possessing and utilizing 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 an important measurement to note and can disclose to you what kind of effectiveness you can expect from your system. If you are unsure of your AFUE, this percentage can be determined at your next furnace tune-up appointment from one of our professionals at Lycoming Heating Company.

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 not as much energy efficiency paralleled to a new furnace in the 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 devote to heating your home, only $75 is taken to heat your home.

Bearing in mind the age of your furnace and the potential of overspending on your heating costs has hopefully provided some perception into the weight of your furnace’s AFUE. There are many elements that go into picking a new furnace or remaining with your furnace service plan. Over time however, decreased efficiency levels can significantly impact your energy usage, monthly bills and comfort. Don’t ignore the AFUE rating of your furnace and think of it when choosing whether it’s time for furnace replacement.

If you have any further questions about furnaces, or you just want some help verifying the AFUE rating of your existing furnace, give our specialists at Lycoming Heating Company a call at 570-326-4450 or schedule an appointment with us online.