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

December 31, 2015

Curious temperature changes and the desire for early spring can mess with us as we wait until the end of winter. With the unpredictable weather this time of year, it’s crucial to double check that your furnace service is complete and that your furnace is set for any weather shift. Part of having and using 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 significant measurement to know and can disclose to you what kind of effectiveness you can look for from your system. If you are unsure of your AFUE, this percentage can be determined at your next furnace service appointment from one of our experts at JTech Mechanical.

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


  • The older your furnace is, the littler its AFUE will also be. This means less energy efficiency than with a new furnace each winter when your system is in use.
  • Compare 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 being used to heat your home.

Bearing in mind the age of your furnace and the likelihood of overspending on your heating costs has hopefully provided some understanding into the significance of your furnace’s AFUE. There are many factors that go into picking a new furnace or sticking to your furnace service plan. Over time still, decreased efficiency levels can significantly effect your energy usage, monthly bills and comfort. Don’t disregard the AFUE rating of your furnace and think of it when deciding whether it’s time for furnace replacement.

If you have any further inquiries about furnaces, or you just want some help finding the AFUE rating of your existing furnace, give our professionals at JTech Mechanical a call at 281-231-8768.