What is the name of the pipe that connects a fuel-burning appliance to a chimney or vent?

The term used to describe the pipe that connects a fuel-burning appliance to a chimney or vent is commonly referred to as a connector. This connector is crucial in facilitating the safe and effective transport of combustion gases from the appliance to the outside through the chimney. It plays an essential role in ensuring proper ventilation, preventing backdrafts, and minimizing the risk of hazardous exhaust buildup inside the home.

While the other terms mentioned are related to chimney and vent systems, they each refer to different components or structures. A pipe flue, for instance, usually refers to the area within the chimney itself that the gases must pass through, while chimney liners are materials designed to protect the interior of the chimney and improve efficiency. An air shaft generally refers to a passage used for ventilation but is not specifically connected to the emissions from a fuel-burning appliance. Therefore, the designation "connector" specifically identifies the segment that directly links the appliance to the ventilation system.