Why is it important to maintain a proper fuel oil supply level?

Maintaining a proper fuel oil supply level is crucial primarily to prevent air from entering the lines, which can lead to operational issues with the burner. When the fuel oil level is too low, the pump may start to suck air along with the oil. This air can create bubbles and cavitation, causing inconsistent fuel delivery to the burner. Inconsistent fuel flow can result in inefficient combustion, leading to poor heating performance, potential damage to the burner components, and increased maintenance requirements.

Ensuring an adequate level of fuel oil helps to maintain a steady supply, allowing the heating system to function optimally and minimizing the risk of air getting into the system. This aspect is essential for the reliable operation of a heating system, particularly in colder seasons when consistent heating is necessary for comfort and safety.