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

Curious temperature changes and the desire for early spring can let us down as we wait until the end of winter. With the random weather this time of year, it’s vital to make sure that your furnace service is taken care of and that your furnace is ready for any weather change. Part of owning and using a furnace is knowing 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 note and can tell you what kind of efficiency you can look for 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 Patterson & Stirling Inc.

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


  • The older your furnace is, the lower its AFUE will also be. This means not as much energy efficiency compared 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 spend on heating your home, only $75 is being used to heat your home.

Considering the age of your furnace and the possibility of overspending on your heating costs has hopefully provided some perception into the weight of your furnace’s AFUE. There are many factors that go into selecting a new furnace or remaining with your furnace service plan. Over time however, decreased efficiency levels can drastically impact your energy usage, monthly bills and ease. Don’t disregard 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 existing furnace, give our experts at Patterson & Stirling Inc a call at 814-833-5558.

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