Which of the following is NOT done prior to lighting off a boiler?
a. Purge the furnace
b. Check the fuel supply
c. Fill the boiler with water
d. Open the blowoff valve
e. Check for a valid operating certificate
Answer: D
Which of the following is NOT done prior to lighting off a boiler?
a. Purge the furnace
b. Check the fuel supply
c. Fill the boiler with water
d. Open the blowoff valve
e. Check for a valid operating certificate
Answer: D