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HIGH ALTITUDE INSTALLATION INFORMATION
: Prior to installing at altitudes higher than 7500, please con-
tact the Mendota technical service department for specific venting requirements and venting restrictions.
FLUE VENTING INSTRUCTIONS
The Mendota Fireplace must be vented using DuraVent or Amerivent or Security 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 unau-
thorized personnel; Installation of any damaged component; unauthorized modification of vent system; installation of any
components not manufactured or approved by security chimney Simpson DuraVent, Amerivent and Mendota; failure to
meet all clearance requirements; failure to properly twist-lock 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 insu-
lation. 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 roof tops; 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 separate solid fuel or gas burner appliance. Each direct vent gas appliance must have its own separate vent sys-
tem. 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 vent pipe sections are sealed tightly and leak-proof. This means that all pipe sections must be care-
fully rotated into the fully "twist-locked" position (Dura Vent only).
WE STRONGLY RECOMMEND THAT FIXED LENGTH PIPE SECTIONS BE USED IN PLACE OF TELESCOPING
SECTIONS WHENEVER POSSIBLE
Note: When using Dura-vent DV pipe you must use a silicate stove masonry sealant [Millpak Sealant #65-06-00909] on all
inner pipe joints. On the exterior (air intake) pipe joints, high temperature foil tape may be used instead of the masonry
sealant. Contact your dealer to obtain this sealant material.
DO NOT SEPARATE TELESCOPING SECTIONS. THEY MUST BE USED AS COMPLETE ASSEMBLIES.
COMPONENT "TWIST-LOCK" CONNECTION PROCEDURE
DuraVent, Amerivent and Security brand pipe and fittings are designed with special
twist-lock connections. Twist-lock procedure is as follows: four (4) indentations, lo-
cated 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 4).
FIGURE 4: Twist-Lock Piping
Push the pipe sections completely together then twist-lock one section clockwise,
approximately 1/4 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.
