
Homeowners in our chilly region should know all about the efficiency of their heating systems. If you have a furnace or boiler, that means understanding AFUE ratings. AFUE (annual fuel utilization efficiency) ratings tell you how efficient a heating system is. By law, AFUE ratings are displayed on new furnaces and boilers so that consumers can compare them. The higher the AFUE, the more efficient the system, and the more you'll save on heating bills.
What AFUE Means
AFUE is a measurement sig...
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