Why Does an AFUE Rating Matter?
It’s always important to make sure that you are making the most informed decision when you are shopping for any new appliance. Purchasing a new heater or having an old one replaced is no exception. You’ll want to keep in mind the energy efficiency of any potential heating system because it greatly affects how well the heater is going to work for your home. One of the easiest ways of determining the energy efficiency level of a furnace is looking at its AFUE rating. What Is AFUE Rating? AFUE is a short name for Annual Fuel Utilization Efficiency, a particular rating that’s usually attached to heating systems. This rating measures how well a boiler or furnace turns the energy it uses to heat. For instance, if a heating system has an AFUE rating of 90 percent, it can only convert 90 percent of the energy it uses to heat, and the 10 percent that remains is wasted. How Is AFUE Rating Determined? The AFUE rating doesn’t have much to do with the system’s overall power level – keep that in mind. It can only measure how well the heater utilizes the energy/fuel it expands. AFUE ratings are expressed in percentages as you can see in the example given above. The figure represents the exact...
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