What is the purpose of a low-water cutoff?

The purpose of a low-water cutoff is to shut down the boiler if water levels drop below a safe operating limit. This safety device plays a critical role in protecting the boiler from potential damage due to low water conditions. When water levels decline, it can lead to overheating and damage to the boiler's components, including the potential for a boiler explosion.

The low-water cutoff is designed to monitor the water level in the boiler and immediately deactivate the burner or the entire boiler system if it detects that the water level has fallen below a predetermined threshold. This automatic response helps ensure that the boiler operates within safe parameters, preventing operational issues and enhancing overall safety for users and the facility.

In contrast, increasing the pressure of the boiler, regulating the temperature of the steam, or enhancing combustion efficiency are functions associated with other components and controls within the boiler system, but they do not directly relate to the primary safety function of a low-water cutoff.