What should be regularly checked to ensure the safety of an oil burner?

Regularly checking the flame detection system is crucial for the safety and proper operation of an oil burner. The flame detection system is responsible for ensuring that the burner has a flame whenever it is operating. If the flame goes out unexpectedly, a properly functioning detection system can shut off the burner to prevent the buildup of unburned fuel, which could lead to dangerous situations such as a fire or explosion.

Moreover, the flame detection system typically includes components like photodetectors or flame rods that monitor the presence of the flame. Any malfunction in these components could result in a failure to shut down the burner if a flame is not present, leading to unsafe operating conditions. Therefore, routine checks of this system are essential to ensure that it responds correctly and maintains safe operation.

While checking other elements like the position of the heater, fuel gauge readings, and outer casing temperature is important for overall maintenance and performance, they are not as directly related to the immediate safety of the burning process as the flame detection system.