A boiler is a device that converts chemical energy to heat energy. Boilers are widely used devices for industrial purposes to generate hot water and steam. A boiler system with higher efficiency is essential for system performance. The boiler water treatment process is crucial and increases boiler efficiency operations. This paper discusses how to treat water, reduce cost by using alternative fuel. Another essential thing is heat recovery and energy management. In the water treatment part, discuss what the problems are and what the solution is. In cost reduction, part discusses what the alternate fuel is and how it works. Also, discuss how can heat recovery methods and how to manage energy. This paper discusses how to optimize, improve, and apply the above operations for industrial boilers.