A power vent oil furnace is an furnace operated with oil that uses a powered vent to draw out combustion air. Power vent oil furnaces are typically used in homes where there is a chimney in poor condition, or to vent another appliance not attached to a chimney.
Power vents are effective in venting homes, as they use fans to blow the smoke produced to an outside vent that is located at the side of the home. Power vents are made from galvanized pipe and do not need vent pipe seals. They also offer longer vent lengths than traditional systems.
Power vents are typically used in older oil furnaces that are not as efficient in venting heat as newer furnaces.