![Grease Duct - Construction Grease Duct - Construction](http://duravent.com/images/product/Feature5612.jpg)
Fire-rated (DIS3Z) significantly reducing installation footprint and frees up space for other use. No need to build an expensive fire-rated chase or apply two layers of fire wrap typically required for welded steel grease duct designs.
Diameters:
Available in 5"- 36"; 3" wall insulation and single wall. DuraStack Pro is now UL 1978 listed for applications where 1" air insulated, 1", 2", or 4" AES Wool Insulated grease duct is required. Please see the DuraStack Pro product pages for more details.
Certification:
UL1978, UL2221 (2 HR)
IMC, UMC and NFPA96 Code Compliance
Assembly:
Blanket insulation is already installed in the portion that lines up with the outside casing. We provide an insulation band to be field installed behind the outside band.
Goes together with the inner flange and inner locking band (with centering extension). The outer locking band is on the outside for more support, making it a stronger system.
Listings:
DuraVent, Inc. Model DIS3Z grease ducts have been tested and listed by UL to UL/ULC Standards. UL 1978 Grease Duct and UL2221(2 hr Fire Rating). IMC, UMC and NFPA96 Code Compliance.
Grease Duct is subjected to rigorous and stringent requirements of the UL1978 & UL-2221 standard, including continuous firing at 500°F (260°C), plus 30 minute firing at 2000°F (1093°C).
Catalog:
Installation Instruction:
Sales Sheet:
- Zero Clearance Grease Duct Sales Sheet (
PDF, 304KB) - Kitchen Exhaust Duct: What Owners Need To Know (
PDF, 2MB) - Kitchen Exhaust Duct: What Contractors Need To Know (
PDF, 2MB) - Leak Testing Kitchen Exhaust Systems: The One Method That Truly Holds Water (A Grease Duct White Paper) (
PDF, 2MB) - Minimizing Safety Risks in Commercial Kitchens with Factory-Built, UL Listed Grease Duct (A Grease Duct White Paper) (
PDF, 3.7MB) - How Restaurant Rehab Incorporates Factory- and Field-Fabricated Grease Duct to Solve Code and Space Issues (A Factory-Built Grease Duct Case Study) (
PDF, 1MB) - Recipe for Success: How Pre-fabricated Grease Duct Keeps Restaurant Construction on Fast Track (A Pre-fabricated Grease Duct Case Study) (
PDF, 215 KB) - Type 1 vs. Type 2 Exhaust Hoods – What’s the Difference? (
PDF, 728KB) DURASTACK® PRO MODEL DAS1, DIS1, DIS2, DIS4 (
PDF, 728KB)
Spec Sheet:
Submittal: