85-03-01103
FV41 ARCH
Page
63
SUPPORT:
Horizontal runs of pipe will require one vent support for every 3 ft. of pipe.
ZERO RISE HORIZONTAL TERMINATION
The FV-41 Fireplace must be installed by a qualified Mendota approved serviceperson.
A Maximum Horizontal Run allowed is 18 inches if a 90-degree elbow is connected directly to this fireplace’s flue
starter collar.
When a 90-degree elbow is connected directly to this fireplace, the
horizontal centerline of the 90
º
elbow will be 42-1/2” inches up from the floor
level of this Fireplace.
See, MASTER VENTING CHART and Figures, below.
Use "fixed" pipe sections in place of adjustable pipe sections wherever
possible.
Always maintain 1" clearance from vent pipe sides and bottom to
combustibles, 2" 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 42-1/2” 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 10-3/4" wide x 10-3/4" high opening in the wall for use
with a wall thimble (required). 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., a 9-inch diameter
hole is acceptable.
4. Attach the 90-degree elbow to the fireplace starter adapter.
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. 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).
5.
A wall thimble must always be used when penetrating
combustible wall materials.
6. From the exterior of the home, slide the horizontal vent cap
over the end of the horizontal pipe and tightly secure the cap
to the wall with screws. Seal with a high-quality caulking.
NOTE:
Combustible wall thickness must be 4" to 8" maximum
NOTE:
Vent Cap should not be recessed into wall or siding.
45-1/2"
42 1/2”
46”
