Air cooled pipe also has a 2 clearance to combustibles but it differs by not having any insulation.
Triple wall stove pipe clearance to combustibles.
Maintain at least 2 clearance to combustibles.
Double wall stovepipe is used when you don t have 18 or more clearance from combustibles.
The nfpa calls for an 18 clearance to combustible walls for single wall stove pipe.
Higher elevations or the use of elbows or a tee will require approximately 30 to 60 more height to provide for an adequate draft.
Solid packed chimney these pipes have smaller inner diameters usually ranging from 5 inches to 8 inches that have some insulation either double wall like simpson duravent duratech pipe or triple wall like simpson duravent duraplus pipe.
Duraplus is designed to stay cool on the outside to boost stove efficiency and to provide for a fire safe design that protects both the chimney and the building.
B vents 1 clearance class a chimneys 2 to 2 1 2 clearance.
Triple wall class a pipe is the preferred solution for homeowners installing their own system due to its increased margin of safety.
Using a heat shield on a single wall stovepipe.
Minimum chimney height at sea level of straight vertical chimney is 10 to 15 above the appliance outlet.
Carson dunlop s sketch summarizes combustible clearance requirements for the three main types of metal chimneys.
Duraplus chimney is a triple wall all fuel chimney system that is for use with wood stoves fireplaces furnaces boilers stoves ranges water heaters or other appliances fueled by wood oil coal or gas.
2 clearance to combustibles.
These pipes contain fiberglass or ceramic insulation to stay cooler on the outside and must maintain a 2 inch clearance to combustibles.
Triple wall class a pipe is for use with wood stoves fireplaces furnaces boilers ranges water heaters or other appliances fueled by wood coil oil or gas.
Both double wall and triple wall pipe can have a solid packed insulation layer.
It s triple wall and 1 clearance to combustibles is ok for vertical runs.
Most of the double wall stove pipe allows for 6 clearance from wall combustibles and 8 from ceiling combustibles.
While a double wall class a chimney pipe is adequate for most installations wood.