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Blog Title: What is AFUE of a furnace?

Main Que: What is AFUE of a furnace?

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  • Query By: Eda Stone (Suffolk, VA)
  • Date: 07/23/2016

Answer: Every furnace has an AFUE (annual fuel utilization efficiency) rating which is assigned to it by its manufacturer. This rate talks of how much heat a furnace generates from per unit of fuel. The higher the AFUE rate more the efficiency. AFUE is calculated through a complex formula that takes into account many factors, such as fuel use, electricity use, and the fans used in the furnace.

  • Replied By: Edith (New York, NY)
  • Replied Date: 07/28/2016