27 |
P a g e
H
ZERO VERTICAL
HORIZONTAL TERMINATION
H = 18 INCHES MAXIMUM
ZERO RISE HORIZONTAL TERMINATION
The FV41-M 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
Figure 14
, MASTER FLUE VENTING REQUIREMENTS CHART and
Figure 17
and
Figure 16
below.
Use "fixed" pipe sections in place of adjustable pipe section
s wherever possible. 1000
º
sealant must be used on ALL
inner pipe joints that do not have factory installed gasket material.
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 Figure 13 for 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 45-
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. 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 lo-
cated 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 accepta-
ble.
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. Be sure 1000
º
sealant
is used on the inner pipe joints of all pipe sections manufactured by Simpson DuraVent. 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 in-
stallation 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 (2" 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.
Figure 16
Figure 17: Horizontal Termination
45-1/2"
42-1/2”
