Why isn't a induced draft fan used when burning natural gas or liquids?
A. More expensive
B. Higher maintenance requirements
C. Hard to clean
D. All of the above
E. A and B
Answer: E
Why isn't a induced draft fan used when burning natural gas or liquids?
A. More expensive
B. Higher maintenance requirements
C. Hard to clean
D. All of the above
E. A and B
Answer: E