DuraVent Locator   |  Login

DirectVent Pro Thimbles and Support Boxes

Date: Jan 26, 2017

Adobe Acrobat Document Product Bulletin

DuraVent approves the field application of noncombustible insulation within the clearance to combustible distance (in wall thimbles or support boxes only) if/when desirable. Approved insulation must be listed / compliant with ASTM E136/ULC S114 as Non-Combustible, have a melting temperature above 2000°F/1100°C, be water resistant with low moisture absorption and be acceptable to the AHJ. Materials would include those made from stone (aka “rockwool” or “mineral wool” insulations). NOTE- Fiberglass insulation is NOT approved!

The latest UL approved installation instruction now available online at www.duravent.com.

Parts & Sizes Chart

For current pricing and availability, please call customer service at (800) 835-4429.
Information published in all M&G DuraVent bulletins is current at time of publication and is subject to change without notice.