This book was written specifically for boiler plant operators and supervisors who want to learn how to lower plant operating costs, as well as how to operate plants of all types and sizes more wisely. Going beyond the basics of "keeping the pressure up", the author explains how to set effective priorities to assure optimum plant operation, including safety, continuity of operation, damage prevention, managing environmental impact, training replacement plant operators, logging and preserving historical data, and operating the plant economically. The book can also serve as an important reference for managers and superintendents who are interested in reducing a facility's operating expense.