Which maintenance task is essential for ensuring boiler efficiency?

Regularly checking and cleaning safety devices is essential for ensuring boiler efficiency because these devices play a critical role in the safe and effective operation of the boiler system. Safety devices, such as pressure relief valves and low-water cut-offs, are designed to prevent dangerous conditions that can arise due to malfunctioning equipment. If these devices are dirty, blocked, or inoperable, it can lead to unsafe operating conditions, reduced efficiency, or even boiler failure.

Maintaining the cleanliness and functionality of these safety devices helps in preserving the overall integrity of the boiler system and ensures it runs at optimal efficiency. Regular maintenance not only keeps the system safe but also reduces the risk of unnecessary energy consumption due to inefficiencies caused by neglecting these components.

In contrast, merely checking the appearance of the boiler does not provide an accurate measure of its operational efficiency or safety. Keeping the boiler room cool, while important for worker comfort, does not directly affect the operational efficiency of the boiler. Disconnecting power during operation is not standard procedure and may compromise safety and operational standards.