DuraVent DuraChimney II Chimney Pipe
DuraChimney II pipe is available in lengths of 12", 18", 36", and 48". To calculate the installed length of DuraChimney II pipe, subtract 1" from each length listed.
Product Features
Double-Wall, Air-Cooled Safety
Stays cooler on the outside while maintaining a hot internal draft path—enhancing chimney performance and protecting surrounding framing.
Unitized, Lightweight Sections (Faster Installs)
Factory-built inner/outer walls arrive pre-assembled, eliminating the need for field assembly and reducing installation time and errors.
UL 103 / ULC S604 Class A Listing
Tested and listed for high-temperature solid-fuel use to meet North American safety standards.
High-Temperature Rating
Rated for continuous 1000°F flue gases; also tested for short-duration over-temperature events per Class A requirements.
Durable Stainless/Galvanized Construction
.016" 430 stainless steel inner wall with a .021" galvanized outer wall (stainless outer wall available by quote) for extended service life.
2" Clearance to Combustibles
Air-cooled design maintains the required 2-inch clearance for safe chase and framing layouts.
Broad Diameter Options
Available inner diameters: 10", 12", 14", and 16" to match standard fireplace outlets and design requirements.
Professional Installation Required
DuraVent requires that all DuraChimney II components be installed by a qualified professional.
Product Specifications
| Specification |
Detail |
| Brand / Series |
DuraVent® DuraChimney® II (DCA) |
| Component Type |
Chimney Pipe Length |
| Inner Diameter (ID) |
10", 12", 14", 16" |
| Outer Diameter (OD) |
13", 15", 17", 19" |
| Overall Length / Angle |
12-Inch Section, 18-Inch Section, 36-Inch Section, 48-Inch Section |
| Construction |
.016" 430 stainless inner wall; .021" galvanized outer wall (stainless outer available by quote); 1.5" Air Gap Between Walls |
| Design |
Double-wall, air-cooled; unitized (no field assembly of inner/outer walls) |
| Listing / Certification |
UL 103; ULC S604 (Class A chimney) |
| Temperature Rating |
1000°F continuous; short-duration higher-temp compliant per UL 103 |
| Clearance to Combustibles |
2" minimum |
| Fuel Compatibility |
Wood (primary); also oil, coal, gas, where listed—follow the fireplace manufacturer’s instructions |
| Typical Application |
Factory-built alternative to masonry chimney; fireplace/chimney chase installations |
| Finish |
Galvanized outer (option: stainless outer by quote) |
| Joint / Connection |
Twist-Lock Connection |
| Maintenance |
Inspect annually; clean as needed per solid-fuel best practices |
| Warranty |
Limited Lifetime |
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