General Flue Venting Instructions - Mendota DXV-35 Installation & Operating Instructions Manual

GENERAL FLUE VENTING INSTRUCTIONS

The Mendota Fireplace must be vented using the Mendota/DuraVent/American Metals venting system. All
warranties will be voided and serious fire, health or other safety hazards may result from any of the following
actions: Installation by unauthorized personnel; installation of any damaged component; unauthorized modifi-
cation of vent system; installation of any components not manufactured or approved by Simpson DuraVent,
American Metals and Mendota; failure to meet all clearance requirements; failure to properly twist-lock and
positively seal all components. Consult local building codes before beginning the installation.
WARNING
Always maintain required clearances (air spaces) to combustibles to prevent a fire hazard. Do not fill air spaces
with insulation. Check installation instructions for minimum clearance requirements between the outer walls of
the vent pipe and nearby combustible surfaces. Be sure to check the vent termination clearance requirements
from decks, windows, soffit, gas regulators, air supply inlets, and public walkways, as specified in these instal-
lation instructions and local building codes. 1) Wear gloves
SAFETY PRECAUTIONS FOR THE INSTALLER:
and safety glasses for protection; 2) Exercise extreme caution when using ladders or on rooftops; and 3) Be
aware of electrical wiring locations in walls and ceilings.
The gas appliance and vent system must be vented directly to the outside of the building, and never attached to
a chimney serving another solid fuel or gas burning appliance. Each direct vent gas appliance must have its
own separate vent system. Common vent systems are prohibited.
To assure proper venting performance of the high-performance Mendota Direct Vent Fireplaces and Stoves, it is
critical that the DuraVent GS and American Metals vent pipe sections are sealed tightly and leak-proof. This
means that all pipe sections must be carefully rotated into the fully "twist-locked" position.
WE STRONGLY RECOMMEND THAT FIXED LENGTH PIPE SECTIONS BE USED IN PLACE OF
TELESCOPING SECTIONS WHENEVER POSSIBLE.
Note: When using vent pipe and components that do not incorporate a fiberglass or graphite gasket at the
joints, you must use Milpak 1000F silicate stove sealant (#65-06-00909). High temperature foil tape may be
used on the outer (air intake) pipe joint instead of the stove sealant. Contact your dealer for proper materials.
Pipe sections manufacture by American Metals do not require the use of the 1000F Silicate Stove Sealant.
DO NOT SEPARATE TELESCOPING SECTIONS. THEY MUST BE USED AS COMPLETE
ASSEMBLIES.
Note: When using Dura-vent DV pipe you must use a Milpak silicate 1000F (#65-06-00909) stove sealant
on all inner pipe joints. High temperature tape must be used on the outer (air intake) pipe joint. The sil-
icate 1000F sealant can be ordered through Mendota directly.
COMPONENT "TWIST-LOCK" CONNECTION PROCEDURE
DuraVent and American Metals pipe and fittings are designed with special twist-
lock connections. Twist-lock procedure is as follows: four (4) indentations, located
on the female ends of pipes and fittings are designed to slide straight in to the male
ends of the adjacent pipes and fittings, by orienting the four pipe identifications so
that they match and slide into the four entry slots on the male ends (Figure 3).
Push the pipe sections completely together then twist-lock one section clockwise,
approximately ¼ turn until the two sections are fully locked. The female locking
lugs will not be visible from the outside on the black pipe or fittings. They may be
.
located by examining inside of the female ends
Figure 3: Twist-Lock Piping
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