Understanding Flues. A flue is simply a passage for conveying exhaust gases from an appliance to the outdoors. A flue may be a duct, pipe, vent, or chimney. An unlined chimney is technically a flue, even though an unlined chimney is a fire hazard. This can cause confusion, as many view flues not just as a passage for venting, but as a safe passage for venting.
Show map of the US. Fort Ontario is a historic fort situated by the City of Oswego, in Oswego County, New York in the United States of America. It is owned by the state of New York and operated as a museum known as Fort Ontario State Historic Site.
In a little over a month, Pontiac's forces had overrun most of the British forts in the region extending from the Pennsylvania frontier to Lake Superior. By mid-1763, Detroit was the only British post west of Niagara, New York, that had not fallen to American Indian attack. The well-organized American Indian offensive slowed in the summer of 1763, however, when Pontiac failed to capture this major British post.