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.
Fort Hamilton is located on the southwestern tip of Brooklyn, New York, at the base of the Verrazano-Narrows Bridge. Take Exit 13 from the Turnpike Cross the Goethals Bridge. Take the Staten Island Expressway to the Verrazano Narrows Bridge. Cross the bridge and get off at the first exit in Brooklyn (92nd Street).