A. Yes, but it is necessary in order to obtain good results that boiler
and fire-box be in good condition, coal broken to the proper firing
size; then, with the hearty and intelligent co-operation of both
engineer and fireman, smokeless firing is both economical and
practicable.
23. Q. In what condition should the fire be in order that the best
results may be obtained from the combustion of the coal?
A. The fire should be as light as the work being done by the engine will
permit, evenly distributed over the grates and free from clinkers.