All boilers must be properly tuned in order to operate safely and at optimum performance. Any combustion system, whether burning gas, oil, coal, wood or any other fuel, requires a certain fuel/air ratio for each boiler load point. It is important to understand how the different operating parameters interact in order to properly tune a boiler. Tuning of the drum level control loop requires special knowledge and experience.
I have tuned numerous boilers and combustion system for maximum efficiency, while at the same time ensuring that the system operates safely across its full load range.