85-03-01107
FV34 DECOR
Page
62
MINIMUM (18”)
RISE HORIZONTAL TERMINATION
The FV34 DECOR Fireplace must be installed by a qualified Mendota approved serviceperson.
A Maximum Horizontal Run allowed is 6 inches if an 18” vertical
starter section and one 90-degree elbow is connected directly to this
fireplace’s flue starter collar.
When a 90-degree elbow is connected directly to
the 18” starter
section, the horizontal centerline of the 90ºelbow will be 49-
1/2”
inches up from the floor level of this Fireplace.
CAUTION: ALL MEASURMENTS IN THIS MANUAL USE ONE 12”
AND ONE 6” PIECE TO ACH IEVE THE FIRST 18” VERTICAL STARTER
SECTION
LENGTH.
ALL
RELATED
MEASUREMENTS
ARE
EXTRAPOLATED USING THIS 2 PIECES STARTER SECTION. DO NOT
USE A 1-
PIECE 18” SECTION AS THE FIRST STARTER VERTICAL
SECTION. FOR A 1 -PIECE STARTER VERTICAL SECTION, THE
VERTICAL HEIGHT OF THE HOLE IN THE WALL FOR MINIMUM RISE
HORIZONTAL VENTING MUST BE 1 -
3/8” HIGHER THAN WHEN
USING A 12” AND 6” SECTIONS.
See, MASTER VENTING CHART and Figures, below.
Use "fixed" pipe sections in place of adjustable pipe section
s
wherever possible.
Always maintain 1" clearance from vent pipe sides and bottom to
combustibles, 3" clearance on top of pipe on horizontal runs and on top of horizontal discharge elbows. Do not fill air
spaces with insulation or other material.
1. Position fireplace in desired location. See guidelines on proper vent cap placement on the exterior of home. Check
to determine if wall studs are in the way when venting system is attached. If this is the case, you may want to adjust
the fireplace location or modify the exterior wall framing to allow the vent system to penetrate the wall.
2. Measure from the floor level of the fireplace up 49-
1/2” inches [add ¼” rise for every foot of horizontal run] and mark
wall directly at the center of where the vent pipe will penetrate the exterior wall.
3. Cut and frame a 9" wide x 10" high opening in the wall. The hole must
be positioned so the vent system will run level or have a ¼" rise per
foot of run AND be perpendicular to the wall. The height of the opening
must be located to meet all local and national building codes. Do not
allow the termination to be easily blocked or obstructed. If wall being
penetrated is non-combustible material, i.e. masonry block, brick, etc.,
an 8-inch diameter hole is acceptable.
A wall thimble must always be
used when penetrating any combustible wall.
4.
Attach the 18” straight section to the fireplace starter adapter. Attach a
90-
degree elbow to the top of the 18” vertical starter section and rotate
and lock in position. Attach a horizontal section to the 90-degree
elbow. Be sure all vent component connections are in their fully twist-
locked position and are leak-proof.
5. The length of the horizontal piece that fits through the wall will be
determined by the location of the fireplace relative to the wall. For a
normal installation where this fireplace is installed directly against an
exterior wall constructed using 2x4 lumber or 2x6 lumber, only a 6”
horizontal section is required. There MUST be a minimum of 1" air
space clearance to combustibles from all vent components (3" above
horizontal runs and horizontal discharge elbows).
6.
A wall thimble must always be used when penetrating
combustible wall materials.
Figure 4-18 WALL THIMBLE CENTER HEIGHT
ONE(1) 90° ELBOW
TOP VENT
HORIZONTAL TERMINATION
H
V
49-1/2"
FLOOR
TO
WALL
THIMBLE
CENTER
37"
FINALIZED
HEIGHT
