2113.9 Termination.
BC § 2113.9
Chimneys serving appliances that operate at less than 600°F (316°C) shall extend at least 3 feet (914 mm) above the highest construction, such as a roof ridge, parapet wall, or penthouse, within 10 feet (3048 mm) of the chimney outlet, whether the construction is on the same building as the chimney or on another building. However, such constructions do not include other chimneys, vents, or open structural framing. Any chimney located beyond 10 feet (3048 mm) from such construction, but not more than the distance determined from Equation 21-2 and Table 2113.9, shall be at least as high as the construction. Chimneys serving appliances that operate at between 600°F (316°C) and 1,000°F (538°C) shall extend at least 10 feet (3048 mm) above the highest construction, such as a roof ridge, or parapet wall or penthouse within 20 feet (6096 mm) of the chimney outlet, whether the construction is on the same building as the chimney or on another building. However, such construction does not include other chimneys, vents or open structural framing. Any chimney located beyond 20 feet (6096 mm) from such construction, but not more than the distance determined from Equation 21-2 and Table 2113.9, shall be at least as high as the construction. D = F × √ A (Equation 21-2) where: D = Distance, in feet, measured from the center of the chimney outlet to the nearest edge of the construction. F = Value determined from Table 2113.9. A = Free area, in square inches, of chimney flue space. Table 2113.9"F" Factor for Determining Chimney Distances Type of Fuel"F" Factor600°F (316°C)and less600°F (316°C) to 1,000°F (538°C)Greater than1,000°F (538°C)Gas 2 2 3 No. 2 Fuel Oil 2.5 2.5 3No. 4, No. 6 Fuel Oils, Solid Fuels and Incinerators3 3 3
