What can occur if scaling is not addressed in a boiler?

If scaling is not addressed in a boiler, it can lead to decreased performance and potential damage to boiler components. Scaling occurs when mineral deposits, typically calcium and magnesium, build up on the heat transfer surfaces inside the boiler. This buildup acts as an insulating layer, which reduces the efficiency of heat transfer from the combustion gases to the water in the boiler. As a result, the boiler must work harder to achieve the desired temperature, leading to increased fuel consumption and potentially higher operating costs.

The accumulation of scale can also lead to hotspots on the heating surfaces, which can cause thermal stress and eventually result in cracking or failure of components. Additionally, excessive scaling can lead to increased pressure drops and reduced flow rates, further compromising the operation of the boiler. Therefore, proper maintenance and regular cleaning to remove scale are essential to ensure efficient and safe operation of the boiler system.