One of the fire safety features of double-wall Type B gas vent is that its outer wall, insulated by the airspace beneath it, requires only 1â clearance to combustible material in the structure.
Fort Mill, also known as Fort Mill Township, is a town in York County in the U.S. state of South Carolina. It is a suburb of the city of Charlotte, North Carolina and is located north of Rock Hill.
The Battle of Fort Sumter. When South Carolina seceded from the Union on December 20, 1860, United States Maj. Robert Anderson and his force of 85 soldiers were positioned at Fort Moultrie near the mouth of Charleston Harbor.