Which vent type is used with oil-burning appliances listed for Type L vents?

Oil-burning appliances that are listed for Type L vents are specifically designed to use this type of venting system due to its construction and performance characteristics. Type L vents are categorized as low-temperature chimneys and are intended for use with non-positive venting systems, which means they are not under pressure and rely on natural draft for exhaust.

Type L venting is suitable for oil appliances since it is capable of handling flue gases at the lower temperatures produced by oil combustion, while also providing the necessary clearance from combustible materials and protecting against condensation issues. The design of Type L vents is tailored to accommodate the specific requirements of oil-burning equipment, ensuring safe and efficient operation.

This is why Type L vents are directly associated with oil-burning appliances and are the correct answer. Other types of vents, such as Type B, C, and D, have different applications and construction standards that do not align with the specific needs of oil-burning appliances.