What device helps to regulate the temperature in a fuel oil burner?

The device that helps to regulate the temperature in a fuel oil burner is the thermostat. A thermostat is designed to sense the temperature of the environment and maintain it at a predetermined set point. In the context of a fuel oil burner, the thermostat monitors the temperature of the space being heated and communicates with the burner control system to turn the burner on or off as needed to maintain the desired temperature.

This regulation is critical for ensuring efficient heating and preventing overheating, which can lead to system malfunctions or safety hazards. By maintaining the correct temperature, the thermostat plays a vital role in maximizing the efficiency of the heating system and providing comfortable indoor conditions.

Other devices mentioned, such as a combustion analyzer, heat exchanger, and flame sensor, serve different functions within the heating system. A combustion analyzer is used to measure the efficiency of the combustion process and ensure that the fuel is burning correctly. A heat exchanger transfers heat from the burner to the surrounding air or water but does not control temperature directly. A flame sensor detects the presence of a flame to ensure safe operation of the burner but does not regulate temperature as a thermostat does.