What is a low-water cut-off?

A low-water cut-off is a safety device designed to monitor the water level within a boiler system. Its primary function is to prevent potentially dangerous situations that could arise if the water level falls below a certain threshold. When the water level dips too low, the cut-off activates, shutting down the boiler to avoid overheating and potential damage or catastrophic failure. This is crucial in maintaining safe operating conditions, as low water levels can lead to overheating of the boiler components, and even explosion if not properly managed.

In contrast, devices that increase water levels or regulate steam pressure are part of different aspects of boiler operation and would not fulfill the safety role essential to the function of a low-water cut-off. The mention of a type of water heater is irrelevant in this context, as it does not relate to boiler safety or water level management. Understanding the role of the low-water cut-off is essential for ensuring safe boiler operation and compliance with safety regulations.