NATE - North American Technician Excellence Practice Test
NATE Gas Heating 2
What is the AFUE rating and what does it measure for a gas furnace?
Select your answer
A
Annual Fuel Utilization Efficiency; measures what percentage of fuel energy is converted to heat
B
Airflow Factor Under Extreme conditions
C
Average Furnace Unit Efficiency; measures BTU output
D
Annual Flue Utilization Effectiveness
Hint