Double Wall Chimney Pipe Clearance

Can someone tell me what the typical clearance is for the chimney.

Double wall chimney pipe clearance. Double wall stove pipe can reduce the clearance needed to combustibles in many situations and typically has a stainless steel inner wall that will provide a much loger time of service that a typical single wall setup. Clearance to non combustible materials is 0 but pipes should not actually touch cement bricks or other non combustibles. If you are using a b vent typically a double walled air insulated vent for gas appliances typically you ll see a fire clearance stamped right into the metal of the chimney stating 1 inch minimum clearance to combustibles as you ll see in this photo. Dsp double wall stove pipe black stove pipe connects a wood stove to insulated chimneys.

Double wall stovepipe is used when you don t have 18 or more clearance from combustibles. Double wall system features a black aluminized steel outer casing and stainless steel inner liner. The double wall black pipe has been tested by warnock hersey to underwriters laboratories standard 103. Double wall is 12 insulated pipe usually stainless steel can be a little as 2 but is much more expensive.

6 clearance to combustible materials. Double wall pipe could be associated with either double wall black pipe like dvl or double wall chimney pipe like duratech. Using a heat shield on a single wall stovepipe allows you to reduce the clearances from 18 to 6 to the wall and 9 to the ceiling. What is the offset and rise for both black pipe and chimney pipe.

Rockford s double wall chimney pipe has a limited lifetime warranty. Single wall black pipe is 18 from combustible surfaces. This pipe has a clearance of only 6 to combustible materials and keeps flue gases warm for better draft. Most of the double wall stove pipe allows for 6 clearance from wall combustibles and 8 from ceiling combustibles.

6 7 8 inner diameters. The maximum temperature must not exceed 1000 f continuous and 1700 f intermittent. The double wall black pipe is listed for six 6 inches clearance to combustible material. When combining lengths remember to subtract 1 5 from each to account for overlap.

Double wall pipe should not be cut. Double walled or close clearance stove pipe is used to connect your stove to the chimney.