What is the result of excessive soot build-up in boiler tubes?

Excessive soot build-up in boiler tubes leads to reduced efficiency and an increased risk of overheating. When soot accumulates, it acts as an insulating layer on the heat exchange surfaces, which impairs the transfer of heat between the combustion gases and the boiler water. This insulation effect reduces the overall thermal efficiency, meaning that more fuel is needed to achieve the desired steam production or heating effect.

As a result of decreased heat transfer, the boiler may operate at higher temperatures in an attempt to compensate for the energy loss, elevating the risk of overheating. Overheating can lead to various serious issues such as tube failure, reduced equipment lifespan, and potentially dangerous operating conditions. Therefore, maintaining clean boiler tubes is essential for optimal performance and safety.