Insulated Stove Pipe Clearances

Rock vent pellet chimney pipe is used to safely vent your pellet burning stove or b vent listed appliance.

Insulated stove pipe clearances.

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. For example a single wall stove pipe requires 18 inches of clearance from ceilings or walls. Once these clearances are met you must convert your stove pipe to class a chimney pipe for proper venting of your stove. 6 single wall or double wall stove pipe.

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. Single wall black pipe is 18 from combustible surfaces. Prefabricated chimneys are efficient and easy to install. The necessary clearances from combustible materials are marked on each section of a ul listed prefabricated chimney.

Minimum clearance from combustible material. Double wall stove pipe on the other hand requires only 8 inches of clearance from the ceiling and 6 inches from a wall. Clearance should be three times the diameter of the pipe e g a 6 inch pipe needs 18 inches of clearance. 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.

A flue pipe must never pass through a combustible floor or ceiling or through an attic roof space closet or concealed space. Double wall stovepipe is used when you don t have 18 or more clearance from combustibles. Choose your stove pipe type. 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.

Most of the double wall stove pipe allows for 6 clearance from wall combustibles and 8 from ceiling combustibles. To 6 in the closest clearance to a wall of any connector pipe. The nfpa calls for an 18 clearance to combustible walls for single wall stove pipe. Dvl improves stove performance by maintaining high flue gas temperatures for a strong steady draft.

450 mm 18 in. Single wall stove pipe radiates more heat into the room than double wall stove pipe and requires 18 clearance from combustible surfaces where. 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. Dvl s double wall air insulated design reduces clearances to combustibles from 18 in.

Double wall is 12 insulated pipe usually stainless steel can be a little as 2 but is much more expensive. For the insulated double wall type chimney the minimum clearance is usually two inches.