What is the purpose of the low water cut-off in an electric fired residential boiler?

The low water cut-off plays a critical role in the safety and operation of an electric fired residential boiler. Its primary purpose is to ensure that there is sufficient water in the boiler system. When the water level drops below a certain threshold, the low water cut-off device activates and shuts down the boiler. This is essential because operating a boiler without enough water can lead to overheating, which may cause damage to the boiler and potentially lead to dangerous situations such as boiler failure or explosion due to the absence of water needed to absorb the heat produced.

Maintaining the correct water level is vital for the boiler's efficiency and safety. This function safeguards the integrity of the system, ensuring continuous operation while preventing failures that could result in costly repairs or pose hazards to the household.