DuraFlexSS 304 Product Catalog
Planning Your Installation
1
Verify the venting requirements of the appliance used. Choose the liner system
appropriate for the appliance and installation.
2
Refer to the Typical Installations for the type of liner installation similar to your situation.
Identify the needed parts for installation.
3
The size of the liner should match the outlet size on the appliance or the size of the vent/
manifold that penetrates into the masonry chimney.
4 Determine the length of liner needed.
5
Make sure of a proper fit for the Top Plate of the reliner to provide a secure, leak-proof
installation.
6
If a free-standing appliance is used, select the vent or stovepipe pieces to connect from the
appliance to the liner (refer to the appropriate section of catalog).
7
Important! Check to be sure the installation complies with all local and national code
requirements, including clearance to combustibles. Contact the local building inspector for
permit requirements.
Design Recommendations
• The following design recommendations are intended only
as a general guideline to assist in the design and selection of
liner components for your installation. Always read and follow
DuraVent Installation instructions (enclosed with the cap or sup-
port box) before installing DuraFlex. Installation instructions can
be viewed online at www.duravent.com, under catalogs
and instructions.
• Before relining a chimney, it should be cleaned and inspected
to verify the integrity of the mortar and masonry. In addition,
have a certied chimney professional determine if the masonry
was constructed with 0” or 1” clearance to the surrounding
combustibles. This is an important re safety issue that may have
an inuence on how the liner is installed.
• Be sure to select the proper liner for the application. DuraFlex
SS is used for appliances that use oil, wood, or wood-pellets for
fuel; DuraFlex AL is for a non-condensing gas appliance.
Refer to the appliance manufacturer for installation requirements
aecting venting. Keep the vent path as straight as possible for
best performance.
Stainless Steel Flexible Relining | DuraFlex
800-835-4429 | DuraVent
164