What should be checked after heavy black smoke conditions in a steaming boiler?

After experiencing heavy black smoke conditions in a steaming boiler, it is crucial to check the blow tubes. This is because heavy smoke can indicate incomplete combustion, often caused by restricted airflow or fuel-related issues. The blow tubes serve to remove soot and other deposits from the boiler’s tubes, ensuring efficient operation and maintaining proper heat transfer.

By inspecting the blow tubes, you can ascertain if there is a buildup of soot or obstructions that may have contributed to the combustion problem. Properly maintained blow tubes help maintain optimal boiler efficiency and prevent further issues.

While checking fuel tank levels, water levels, and safety valves is important in overall boiler maintenance, the direct link between black smoke and the need to clean or inspect the blow tubes makes this the most pertinent action following such conditions.