What is the purpose of a low-water cutoff?

The purpose of a low-water cutoff is to prevent boiler operation when the water level is too low. This feature is essential for the safe operation of a boiler system. If the water level drops below a certain point, the boiler can overheat, potentially leading to serious damage or even failure. The low-water cutoff detects this low water level and automatically shuts down the boiler to protect it from such hazardous conditions. Ensuring that the boiler does not operate without sufficient water is crucial for maintaining both safety and durability in the operation of steam and hot water systems.