Service & TroubleshootingQuestion 82 of 110
AFUE is the efficiency rating used for what equipment?
a.Air conditioners
b.Cooling towers
c.Gas and oil furnaces
d.Duct systems
Explanation
Annual Fuel Utilization Efficiency (AFUE) expresses the percentage of fuel energy a furnace converts to usable heat over a season. A 95 percent AFUE furnace delivers 95 percent of the fuel's energy as heat. It is the standard heating-efficiency metric for furnaces.
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