In boiler operation, what does overheating usually indicate?

Overheating in boiler operation is a critical condition that typically signals potential damage to the components of the boiler system. When the temperature of the boiler exceeds the designed limits, it can lead to severe consequences such as thermal stress, warping, or even failure of materials that are not able to withstand extreme heat. This situation may arise from various factors like poor water quality, inadequate circulation of water, or malfunctioning temperature controls.

Recognizing overheating as a sign of potential damage helps operators take immediate corrective action, such as adjusting firing rates, improving heat transfer, or performing maintenance checks. By addressing overheating promptly, operators can prevent more severe operational issues, enhance safety, and ensure the longevity of the boiler system.