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

December 31, 2015

Strange temperature changes and the expectation of early spring can mess with us as we wait until the end of winter. With the random weather this time of year, it’s crucial to double check that your furnace service is done and that your furnace is ready for any weather swing. Part of owning and operating a furnace is understanding the system and preparing for when it might need repair or maintenance. A furnace’s AFUE (Annual Furnace Utilization Efficiency) is an important measurement to note and can tell 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 service appointment from one of our specialists at Cool Power LLC .

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


  • The older your furnace is, the littler its AFUE will also be. This means not as much energy efficiency than with a new furnace in the winter when your system is in use.
  • Think about 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 spent to heat your home.

Taking into account the age of your furnace and the possibility of overspending on your heating costs has hopefully offered some perception into the weight of your furnace’s AFUE. There are many factors that go into choosing a new furnace or sticking to your furnace service plan. Over time however, lower efficiency levels can radically impact your energy usage, monthly bills and comfort. Don’t ignore the AFUE rating of your furnace and consider it when determining whether it’s time for furnace replacement.

If you have any further inquiries about furnaces, or you just want some help verifying the AFUE rating of your existing furnace, give our experts at Cool Power LLC a call at 631-246-4029.