The amount of pre-mix air to an atmospheric burner is typically:
a. 10% to 12%
b. 5% to 8%
c. 20% to 50%
d. 30% to 40%
e. 100%
Answer: D
The amount of pre-mix air to an atmospheric burner is typically:
a. 10% to 12%
b. 5% to 8%
c. 20% to 50%
d. 30% to 40%
e. 100%
Answer: D