1. General Discussion. Introduction; systems of mechanical draft; chimneys v. mechanical draft; mechanical draft and economizers.
2. Forced Draft. Systems; closed fire-room system; closed ashpit system; small fan required; usual pressure; forced draft and economisers; advantages; disadvantages.
3. Induced Draft. Introduction; temperature of gases; advantages; disadvantages.
4. Fuel and Air. Weight of coal to be burned; evaporation per lb. of coal; effect of rate of evaporation; weight of air required; volume of air and gases; volume of gases to handle; leakage; factor of safety.
5. Draft. Relation to rate of combustion; resistance of grate; resistance due to economizer; draft required under different conditions.
6. Economizers. Effect of adding; ordinary proportion and cost; increase of temperature of feed water.
7. Fans. Type and proportions of fan used; relation between revolution of fan and draft; capacity of fan.
8. Proportioning the Parts. Diameter of fan wheel required; speed at which the fan must run; power required to run the fan; size of engine required; steam used by fan engine; choosing the fan for forced draft, for induced draft without economizer, for induced draft with economizer; location of the fan; breeching and up-take; inlet chamber; discharge chimney; by-pass; water for bearings.
Appendix. Tables. Index. 156 pages. 13 plates. 16mo.
Cloth, $2.00.