A system that that forces air into the furnace where combustion gases are removed by natural or mechanical means
A. Induced draft system
B. Forced draft system
C. Balanced draft system
D. All of the above
Answer: C
A system that that forces air into the furnace where combustion gases are removed by natural or mechanical means
A. Induced draft system
B. Forced draft system
C. Balanced draft system
D. All of the above
Answer: C