DuraVent DuraFlex AL Installation - Manual (Page 4)

4
APPLICATION
The DuraFlex AL Chimney Relining
System is UL listed for relining
masonry chimneys which are intended
to be used for venting gas appliances
and decorative gas fireplaces. These
instructions cover installation from
the appliance vent connector through
the wall of the masonry chimney,
or through the damper, up to the
termination cap.
The DuraFlex AL Gas Relining System
is for venting listed Category I draft
hood-equipped or fan-assisted gas
appliances, decorative gas fireplaces,
or other gas appliances listed by
a recognized listing agency, and
approved for use with Type B Gas
Vent.
WARNING
The DuraFlex Gas Relining System
shall not be used for venting wood-
burning appliances, combination gas/
oil burning appliances, incinerators,
conversion burners, or listed Category
II, III, or IV gas appliances.
The DuraFlex AL Gas Relining System
is for use in masonry chimneys
only. It is important that B-Vents
and Vent Connectors be installed to
the DuraFlex system per DuraVent
Installation Instructions.
IMPORTANT
Read all instructions carefully before
starting the installation. Failure to
follow these instructions may create
a fire or other safety hazard, and will
void the warranty. It is important to
follow the appliance manufacturer’s
installation instructions and to check
the label on the appliance to confirm
the appliance category and any
restrictions or limitations. Consult
appliance manufacturer’s instructions
as to the maximum run allowed for
venting.
INSTALLATION PRECAUTIONS
The DuraVent DuraFlex is an
engineered product that has been
designed and tested for use as
specified above. The DuraVent
warranty will be voided, and serious
fire, health, or other safety hazards
may result from any of the following
actions:
• Installation of any damaged
component.
• Unauthorized modification of any
DuraVent product.
• Installation of any component part
not manufactured or approved by
DuraVent.
• Installation other than as instructed
by DuraVent and the appliance
manufacturer.
Consult your local building codes
before beginning the installation.
CAUTION ! Make sure you have the
proper equipment for the job, including
adequate safety protection for working
at elevated heights. Always wear
gloves and safety glasses when
handling sheet metal parts.
SIZING REQUIREMENTS
Proper sizing of the relining system
to the appliance(s) is very important.