The purging process for a furnace should be done
a) before each burner is lit
b) with the fuel valve closed
c) with the fuel valve in the open position
d) before the second burner is lit
e) with the pilot light on
Answer: B
The purging process for a furnace should be done
a) before each burner is lit
b) with the fuel valve closed
c) with the fuel valve in the open position
d) before the second burner is lit
e) with the pilot light on