Insulated Stove Pipe Clearances

Double wall stove pipe on the other hand requires only 8 inches of clearance from the ceiling and 6 inches from a wall.

Insulated stove pipe clearances.

The necessary clearances from combustible materials are marked on each section of a ul listed prefabricated chimney. Our pellet chimney pipe is fabricated with a unique gasket seal system which doesn t require sealant like many other brands on the market today. Listed with a 1 clearance to combustibles by ulc ord c441. For example a single wall stove pipe requires 18 inches of clearance from ceilings or walls.

Single wall stove pipe radiates more heat into the room than double wall stove pipe and requires 18 clearance from combustible surfaces where. Dvl improves stove performance by maintaining high flue gas temperatures for a strong steady draft. To 6 in the closest clearance to a wall of any connector pipe. For the insulated double wall type chimney the minimum clearance is usually two inches.

Minimum clearance from combustible material. Stove pipe is used from the top of the woodstove or freestanding fireplace to the bottom of the ceiling or wall where it will connect to class a chimney pipe or a masonry chimney. To be used for wood stoves these chimneys must be listed as ul all fuel chimneys. Clearance should be three times the diameter of the pipe e g a 6 inch pipe needs 18 inches of clearance.

Most of the double wall stove pipe allows for 6 clearance from wall combustibles and 8 from ceiling combustibles. A class a chimney pipe requires less clearance than a single or double wall stovepipe which is only intended for use within the same room as the stove. Also there are shields that can be attached to single wall pipe that can reduce the distance to 12 if there is only a portion of the pipe that comes close to a combustible surface. The nfpa calls for an 18 clearance to combustible walls for single wall stove pipe.

Once these clearances are met you must convert your stove pipe to class a chimney pipe for proper venting of your stove. Prefabricated chimneys are efficient and easy to install. 450 mm 18 in. Dvl s double wall air insulated design reduces clearances to combustibles from 18 in.

A flue pipe must never pass through a combustible floor or ceiling or through an attic roof space closet or concealed space. Choose your stove pipe type. Single wall black pipe is 18 from combustible surfaces. Heat shields may be used to reduce the clearance by the same ratio as for the stove.

6 single wall or double wall stove pipe. The minimum clearance may be reduced by 50 percent to 225 mm 9 in if suitable shielding is installed either on the pipe or on the combustible surface.