DuraPlus Chimney System Parts

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Supports up to 40' of DuraPlus Chimney pipe. Use adapter to attach DVL or DuraBlack stove pipe to the support box. Painted black. Trim Collar included

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Required where chimney pipe terminates above the roofline. Removable screws allow cleaning of the chimney and spark arrestor screen. Made of stainless steel. Shown with optional spark arrestor screen.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with corrugated metal and tile roofs. Available in sizes 6" and 8", in 0/12-6/12 and 7/12-12/12 styles. Made of dead soft aluminum.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the tee; suspended from a wall. Supports up to 35' of DuraPlus chimney. Starter section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the chimney when it extends more than 4' above the roof. Provides stability to chimney against wind and snow. Mounting brackets and adjustable legs included.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Supports up to 40' of DuraPlus Chimney pipe. Use adapter to attach DVL or DuraBlack stove pipe to the support box. Painted black. Trim Collar included

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the chimney when it extends more than 4' above the roof. Provides stability to chimney against wind and snow. Mounting brackets and adjustable legs included.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Supports up to 40' of DuraPlus Chimney pipe. Use adapter to attach DVL or DuraBlack stove pipe to the support box. Painted black. Trim Collar included

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the chimney when it extends more than 4' above the roof. Provides stability to chimney against wind and snow. Mounting brackets and adjustable legs included.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in installations where a 7" or 8" Dura-Vent Chimney system passes through a roof opening with less than the normal 2" minimum clearance to roof trusses or rafters. Chimney pipe must be centered within the Close Clearance Shield.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Required where chimney pipe terminates above the roofline. Removable screws allow cleaning of the chimney and spark arrestor screen. Made of stainless steel. Shown with optional spark arrestor screen.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the tee; suspended from a wall. Supports up to 35' of DuraPlus chimney. Starter section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Designed for installation in flat ceilings only. Supports 35' of DuraPlus chimney pipe. Use adapter to attach DVL or DuraBlack to the support box. A 2" wide trim collar is included. Not Painted, but can be painted with a high temperature paint.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to weather proof the penetration of chimney pipe through the roof. Storm Collar required. Select roof flashing based on the pitch of the roof. With a flat roof with no pitch, use flat roof flashing. For example, a 6/12 pitch has a vertical rise of 6" over a horizontal distance of 12". Made of Galvalume.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to support the tee; suspended from a wall. Supports up to 35' of DuraPlus chimney. Starter section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to size chart to determine size of support box needed. Supports up to 40' of DuraPlus chimney. Starter Section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in ceiling/floor penetrations when a ceiling support is not used. Not required when passing through the roof. Fits on underside of ceiling and adjusts to cover framing.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in installations where a 7" or 8" Dura-Vent Chimney system passes through a roof opening with less than the normal 2" minimum clearance to roof trusses or rafters. Chimney pipe must be centered within the Close Clearance Shield.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to weather proof the penetration of chimney pipe through the roof. Storm Collar required. Select roof flashing based on the pitch of the roof. For example, a 6/12 pitch has a vertical rise of 6" over a horizontal distance of 12". Made of Galvalume.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Designed for installation in flat ceilings only. Supports 35' of DuraPlus chimney pipe. Use adapter to attach DVL or DuraBlack to the support box. A 2" wide trim collar is included. Not Painted, but can be painted with a high temperature paint.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Required where chimney pipe terminates above the roofline. Removable screws allow cleaning of the chimney and spark arrestor screen. Made of stainless steel. Shown with optional spark arrestor screen.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in ceiling/floor penetrations when a ceiling support is not used. Not required when passing through the roof. Fits on underside of ceiling and adjusts to cover framing.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Designed for installation in flat ceilings only. Supports 35' of DuraPlus chimney pipe. Use adapter to attach DVL or DuraBlack to the support box. A 2" wide trim collar is included. Not Painted, but can be painted with a high temperature paint.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Required for installations that pass through an attic to prevent insulation and debris from accumulating near the chimney. Fits over Firestop Radiation Shield or a support box. Consists of two parts, a collar and a base.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in installations where a 7" or 8" Dura-Vent Chimney system passes through a roof opening with less than the normal 2" minimum clearance to roof trusses or rafters. Chimney pipe must be centered within the Close Clearance Shield.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to weather proof the penetration of chimney pipe through the roof. Storm Collar required. Select roof flashing based on the pitch of the roof. For a flat roof with no pitch, use flat roof flashing. For example, a 6/12 pitch has a vertical rise of 6" over a horizontal distance of 12". Made of Galvalume.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Adjusts from a minimum of 4 3/4" to a maximum of 7 3/4" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16" with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2" into the room beyond the interior wall.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use to adapt on a zero-clearance fireplace when using DuraPlus directly off the unit. Starter section built in.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Use in ceiling/floor penetrations when a ceiling support is not used. Not required when passing through the roof. Fits on underside of ceiling and adjusts to cover framing.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 6", 9", and 12" chimney pipe has 1" insulation blanket; 24" and 36" have 1/2" insulation. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal or gas. It is designed to boost efficiency by staying cool on the outside and providing a hot draft on the inside.