Why is it important to maintain proper water levels in a boiler?

Maintaining proper water levels in a boiler is crucial primarily to prevent overheating and potential damage. When the water level is too low, the boiler may not have the necessary coolant to absorb and dissipate the heat generated during operation. This can lead to overheating of boiler components, which may cause catastrophic failures, such as boiler tube rupture, or damage to critical parts like the heating element.

In contrast, while maintaining water levels can influence combustion efficiency and overall energy efficiency, the critical factor that directly ties proper water levels to safety and equipment integrity is the prevention of overheating. Ensuring the boiler has the correct amount of water helps maintain safe operating temperatures and prevents conditions that could lead to operational hazards.