General Flue Venting Instructions; Vent Components "Twist-Lock" Connection Procedure - Mendota DXV-35 DT4 Installation & Operating Instructions Manual

GENERAL FLUE VENTING INSTRUCTIONS

The Mendota Fireplace must be vented using Amerivent, Duravent, Selkirk Metalbestos, Security Chimney or ICC Brand venting
systems. 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 modification of vent system; installation
of any components not approved by 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, soffits, gas regulators, air supply inlets,
and public walkways, as specified in these installation instructions and local building codes. SAFETY PRECAUTIONS FOR THE
INSTALLER: 1) Wear gloves 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 Fireplace, it is critical that all brands
of 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, it is rec-
ommended that you use Milpak 1000F silicate stove sealant (#65-06-00909). High temperature foil tape may be used on
the outer (air intake) pipe joints.
DO NOT SEPARATE ADJUSTABLE TELESCOPING SECTIONS. THEY MUST BE USED AS COMPLETE
ASSEMBLIES.

VENT COMPONENTS "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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