Flueing - Horizontal Installations - Masport P121-NG Owners & Installation Manual

INSTALLATION
Diagram 12
HORIZONTAL
INSTALLATIONS
Install the flue system according to the
manufacturer's instructions included
with the components.
1) Set the unit in its desired location. Check to
determine if wall studs or roof rafters are
in the way when the flueing system is
attached. If this is the case, you may want
to adjust the location of the unit. Rough in the
gas.
2) Put a bead of silicone inside the outer
section of the adapter and a bead of Mill Pac
on the inner collar. Slip the adapter over the
existing inner and outer flue collar and
fasten to the outer collar only with the 3
supplied screws (drilling pilot holes will
make this easier). Level the fireplace and
fasten it to the framing using nails or screws
through the nailing strips.
3) Assemble the desired combination of pipe
and elbows to the appliance.
Note: Apply sealant "Mill-Pac" to inner
pipe and high temperature sili-
cone sealant to outer pipe.
Horizontal runs of flue must be supported
every three feet. Wall straps are available
for this purpose.
4) Mark the wall for a 10" x 10" square hole.
The center of the square hole should line up
with the centerline of the horizontal pipe.
Cut and frame the 10 inch square hole in the
exterior wall where the flue will be termi-
nated. If the wall being penetrated is con-
structed of non-combustible material, i.e.
masonry block or concrete, a 7"(178mm)
dia. (7-1/2"(191mm) dia. for flex) hole is
acceptable.
18
Vertical Flueing with Three (3) 90
Option
With the above options, maximum total pipe length if 37 feet with
minimum of 5 feet total vertical and maximum 12 feet total horizontal.
Please note minimum 1 foot between 90
Note:
The horizontal run of flue must be
a)
level, or have a 1/4 inch rise for
every 1 foot of run towards the
termination. Never allow the flue
to run downward. This could
cause high temperatures and
may present the possibility of a
fire.
b) The location of the horizontal flue termi-
nation on an exterior wall must meet all
local and national building codes, and
must not be blocked or obstructed. For
External Flue Terminal Locations, see
diagram on page 12.
5) The arrow on the flue cap should be
pointing up. Insure that the 1-1/2" (40mm)
clearances to combustible materials are
maintained (Diagram 1). Install the termina-
tion cap.
The four wood screws provided should be
replaced with appropriate fasteners for
stucco, brick, concrete, or other types of
sidings.
Note: If installing termination on a siding
covered wall, a vinyl siding stand-
off or furring strips must be used
to ensure that the termination is
not recessed into the siding.
Masport P121/P121LC/P121RC/P131 Zero Clearance Room Sealed Gas Fireplace
o Elbows
V + V1
A) 2' (610mm) Minimum
B) 3' (914mm) Minimum
C) 4' (1.22m) Minimum
D) 5' (1.5m) Minimum
6) Before connecting the horizontal run of
flue pipe to the flue termination, slide the
Wall Thimble over the flue pipe.
7) Slide the appliance and flue assembly to-
wards the wall carefully inserting the flue
pipe into the flue cap assembly. It is impor-
tant that the flue pipe extends into the flue
cap sufficient distance so as to result in a
minimum pipe overlap of 1-1/4 (32mm) inch-
es. Secure the connection between the
flue pipe and the flue cap by attaching the
two sheet metal strips extending from the
flue cap assembly into the outer wall of the
flue pipe. Use the two sheet metal screws
provided to connect the strips to the pipe
section. See Diagram 2.
8) Install wall thimble in the center of the 10"
square and attach with wood screws, see
Diagram 3.
Diagram 2
Diagram 1
H + H1
3' (914mm) Maximum
6' (1.86m) Maximum
9' (2.7m) Maximum
12' (3.6m) Maximum
o
elbows is required.
Diagram 3