Description
3' Concentric Flex is an affordable alternative to elbows, perfect for navigating around obstacles like studs, joists, or trusses. It ensures precise vent placement and speeds up installation while reducing the number of pipe joints. Save on parts and labor by using DirectVent Pro Concentric Flex to quickly adjust vent positioning for up & out or cross-corner setups, as well as vertical installations.
Can also be used for simple rear-vent, up & out, or cross-corner installations. Features twist-lock collars on both ends and factory-installed, continuous spring spacer.
DirectVent Pro Additional Info:
DirectVent Pro offers superior performance with its tight inner connections, eliminating the need for gaskets or sealants (unless required by the appliance manufacturer). The black pipe lengths, extensions, and elbows showcase laser-welded outer wall seams for a smooth, refined finish. The low-profile locks, free of hems or beads, provide an elegant appearance that enhances any interior. Trusted & specified by nearly every major stove and fireplace manufacturer in the U.S. and Canada, DuraVent’s direct vent system also has one of the widest selection of termination caps available.
Applications:
DirectVent Pro is a unitized, coaxial (concentric) venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces.
Materials and Construction:
.020” aluminum inner wall. .018” galvanized steel outer wall. Painted outer walls made of laserwelded .018” galvalume steel. Caps also available in stainless steel and copper. Outer pipe brings combustion air to the appliance. Inner pipe exhausts flue gases to the outside. Gaskets or sealants not required (unless specified by the appliance manufacturer).
Clearances:
Specified by the appliance manufacturer.
Diameters:
4” x 6 5⁄8” and 5” x 8”.
Listings:
DirectVent Pro, in combination with the gas appliance, has been tested and listed as a decorative gas appliance system or as a direct vent heater system by a major testing agency, such as UL, CSA, or Warnock Hersey. Check with your appliance manufacturer for approval.
Technical Specifications
View AllCloseAdditional Product Info
Installation Instructions:
• DirectVent Pro Installation Instructions (PDF, 2.3MB)
• Direct Vent Instructions- Converting A Class-A Metal Chimney or A Masonry Chimney to A Direct Vent Systems (PDF, 1.3MB )
• DirectVent Pro Chimney Liner System (PDF, 1.2MB)
Sales Sheets:
• DirectVent Pro Product Brochure (PDF, 2.3MB)
• DirectVent Pro Comparison (PDF, 772KB)
Catalogs:
• DirectVent Pro Catalog (PDF, 6.2MB)
• DuraVent All Products Catalog (PDF, 47.4MB)
Bulletins:
• Changes to DuraVent DirectVent® Pro Galvanized Steel Pipe (PDF, 85KB)
• Direct Vent Factory Built Reline (PDF, 193KB)
• DuraVent Wins a Vesta Award at HPBA EXPO (PDF, 91.1KB)
