DuraTech is a double-wall, all-fuel chimney system that is for use with wood stoves, fireplaces, furnaces, boilers, ranges, water hearts or other appliances fueled by wood, oil, coal or gas and zero-clearance fireplaces that are factory built. With a Thermal Insulation Blanket encased between dual walls, DuraTech chimney systems offer the optimum in safety and performance. DuraTech chimney systems feature an inner wall that is 25% thicker than competitive chimneys for an extra margin of safety. DuraTech chimney vent pipe requires a 2" clearance to combustible materials. Please Note: All Stove & Chimney Pipe is chosen and classified by the inside diameter. If your flue has a 6" Inside Diameter you will choose from the 6" Stove and Chimney Pipe categories.
 | DuraTech 5" - 8" Chimney PipeWith a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners required. DuraTech's sleek 1" wall design provides for easy installations through 16" on-center framing. Designed for normal, continuous operation at 1000° F flue gas temperatures, DuraTech is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400° F, plus three ten minute chimney fire tests at 2100° F.  DuraTech Catalog 5"-8" DuraTech Installation Instructions |
| Applications | 5"-8" Double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built. |
| Materials and Construction | 5"-8" diameter pipe features inner wall of .020" 430 stainless steel. Outer wall options of .016" 430 stainless steel or .021" galvalume steel. A Thermal Tech (ceramic refractory) blanket insulation is encased between walls. Stainless steel end rings seal the pipe. DuraTech features light weight insulation, twist-lock fittings, support boxes with factory installed starter sections, elbows with 360° swivel base, select black finish pipe lengths, and five foot length pipe sections. |
| Clearances | 2" Clearance to combustibles. |
| Diameters | 5"-8" |
| Listings | 5"-8" c-UL-us Listed to UL 103 HT and ULC S604 (MH7399) (Stainless steel outer wall required for installation in Canada). |
| Warranty | Limited Lifetime Manufacturer's Warranty - DuraVent warrants that its products will be free from substantial defects in material or manufacturing, if properly installed, maintained and used. |
 | DuraTech 10" - 24" Chimney PipeDuraVent now offers DuraTech in large diameters to vent large scale residential fireplaces and building heating appliances. DuraTech chimney is tested and listed for continuous operation at 1000° F flue gas temperatures, one hour at 1400° F and terminates at 1700° F, in accordance with the UL 103 test standard. 10"-24" DuraTech Installation Instructions |
| Applications | 10"-24" large diameter DuraTech is a 1" wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. |
| Materials and Construction | 10"-24" diameter pipe feature .027" 430 stainless steel inner wall. An outer wall of .029" galvalume or .027" 430 stainless steel. A Thermal Tech (ceramic refractory) blanket insulation is encased between walls. Stainless steel end rings seal the pipe. |
| Clearances | 2" Clearance to combustibles. |
| Diameters | 10", 12", 14", 16", 18", 20", 22", and 24" |
| Listings | 10"-24" c-UL-us Listed to UL 103 and ULC S604 (MH7399) (Stainless steel outer wall required for installation in Canada.) |
| Warranty | Limited Lifetime Manufacturer's Warranty - DuraVent warrants that its products will be free from substantial defects in material or manufacturing, if properly installed, maintained and used. |
 | DuraTech 6" & 8" Combustion Air Systems Chimney PipeThe DuraPro Combustion Air System’s (CAS) uniquely engineered ceiling support boxes and wall thimbles deliver combustion air to free-standing wood and pellet stoves. Improve the efficiency of central heating systems by eliminating the use of conditioned room air for combustion. DuraTech CAS wood stove systems are available in 6” and 8” chimney diameters, using system specific triple-wall connector pipe, elbows, and tees to deliver combustion air to the appliance from outside the room through the chimney penetration, eliminating the need for a separate penetration in the structure for combustion air intake. Inbound air is circulated through baffles around the heated areas of the support box or wall thimble. For DuraTech, the pre-heated air is supplied between the stove pipe’s 2nd and 3rd wall, while the 1st wall maintains high stove temperatures. This system also enables outside air to be used as combustion air below grade and minimizes down-drafts in below grade installations. The wall thimbles for both wood and pellet stoves provide combustion air to appliances used in below grade (basement) installations, does not consume warm indoor air for combustion and is not subject to oxygen starvation, poor draft and other problems associated with ‘tight’ energy efficient homes. All products are factory finished in matte black. Made in the USA. Combustion Air Catalog DuraTech Combustion Installation Instructions |
| Applications | 5"-8" Double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built. |
| Materials and Construction | 5"-8" diameter pipe features inner wall of .020" 430 stainless steel. Outer wall options of .016" 430 stainless steel or .021" galvalume steel. A Thermal Tech (ceramic refractory) blanket insulation is encased between walls. Stainless steel end rings seal the pipe. DuraTech features light weight insulation, twist-lock fittings, support boxes with factory installed starter sections, elbows with 360° swivel base, select black finish pipe lengths, and five foot length pipe sections. |
| Clearances | 2" Clearance to combustibles. |
| Diameters | 5"-8" |
| Listings | 5"-8" c-UL-us Listed to UL 103 HT and ULC S604 (MH7399) (Stainless steel outer wall required for installation in Canada). |
| Warranty | Limited Lifetime Manufacturer's Warranty - DuraVent warrants that its products will be free from substantial defects in material or manufacturing, if properly installed, maintained and used. |
See all DuraVent Chimney Pipe.
