A boiler is a kind of enclosed vessel that provides a means for combustion and transfers heat to water until it becomes hot water or steam, then the hot water or steam under high pressure is then usable for transferring the heat to a process. This is one of the most needed and valuable assets of all most all the processing industries around the world. They play a crucial role in energy production while devoting significant investments on boilers, especially on boiler used fuels. If we consider boilers in Sri Lanka, the most widely used boilers are biomass boilers. Approximately four hundred biomass boilers are there, and it uses around 3200 metric-tons of biomass to compensate for the daily demand.