In low pressure oil burners, the oil and air mixture is delivered at what pressure?

In low pressure oil burners, the proper functioning is closely tied to the specific pressure range in which the oil and air mixture is delivered. The correct range for low pressure oil burners is typically between 1 to 15 psi. This lower pressure is essential for ensuring that the oil is atomized properly, allowing for efficient combustion. When operating within this range, the burner can achieve the necessary balance of fuel and air to maintain optimal heating efficiency and reduce emissions.

Higher pressure levels, as suggested by the other options, could introduce unnecessary complexity and potential operational issues. Pressures exceeding 15 psi are generally associated with medium or high pressure systems, which are designed differently and may require specialized equipment and safety measures that are not suitable for low pressure oil burners. Therefore, sticking to the established lower pressure range ensures safe and effective operation of the oil burner system.