The Pandonmar (Boiler) is an essential industrial machine used to generate steam or hot water by applying heat energy to water. It operates on the principle of heat transfer, where fuel combustion produces heat that is transferred to water inside the boiler to create steam under controlled pressure and temperature. Boilers are mainly classified into two types: fire-tube boilers, where hot gases flow through tubes surrounded by water, and water-tube boilers, where water flows through tubes heated by external gases. Each type serves different purposes depending on the pressure and capacity requirements. A standard Pandonmar boiler consists of key components such as the furnace (combustion chamber), boiler shell, burner, heat exchange tubes, safety valves, and feedwater system. The furnace is where fuel (such as gas, coal, diesel, or biomass) is burned to generate heat, while the shell and tubes facilitate efficient heat transfer to the water. Safety devices ensure proper pressure regulation and prevent accidents. Pandonmar boilers are widely used in power plants, factories, refineries, food processing industries, and buildings where continuous steam or hot water supply is required. They play a crucial role in industrial operations, power generation, and heating systems, supporting energy efficiency and production reliability. Regular maintenance, inspection, and adherence to safety standards are critical for preventing boiler failures or explosions. Modern boilers often include automated control systems and monitoring equipment to improve performance, efficiency, and safety.