Regency
®
P121-10/P131-10 Zero Clearance Direct Vent Gas Fireplace | 25
25
|
installation
Diagram 3
Diagram 5
Diagram 2
NOTE: For best results and optimum perfor-
mance with each approved venting system, it is
highly recommended to apply “Mill-Pac” seal-
ant (supplied) to every inner pipe connection.
Failure to do so may result in drafting or per-
formance issues not covered under warranty.
3) A Firestop spacer must be installed in the
oor or ceiling of every level. To install the
Firestop spacer in a at ceiling or wall, cut
a 10 inch square hole. Frame the hole as
shown in Diagram 3 and install the restop.
4) Assemble the desired lengths of pipe and
elbows. Ensure that all pipes and elbow
connections are in the fully twist-locked
position and sealed.
5) Cut a hole in the roof centered on the small
drilled hole placed in the roof in Step 2. The
hole should be of sufcient size to meet
the minimum requirements for clearance
to combustibles of 1-1/4". Slip the ashing
under the shingles (shingles should overlap
half the ashing) as per Diagram 4.
Diagram 4: The upper half of the ashing is
installed under the roong material and not
nailed down until the chimney is installed.
This allows for small adjustments.
6) Continue to assemble pipe lengths.
Note: If an offset is necessary in the attic to
avoid obstructions, it is important to
support the vent pipe every 3 feet, to
avoid excessive stress on the elbows,
and possible separation. Wall straps are
available for this purpose (Diagram 2).
Galvanized pipe is desirable above the rooine
due to its higher corrosion resistance. Continue
to add pipe sections through the ashing until
the height of the vent cap meets the minimum
height requirements specied in Diagram 5 or
local codes. Note that for steep roof pitches,
Diagram 3
Diagram 4
Diagram 5
7) Before connecting the horizontal run of vent
pipe to the vent termination, slide the Wall
Thimble over the vent pipe.
8) Slide the appliance and vent assembly
towards the wall carefully inserting the
vent pipe into the vent cap assembly. It is
important that the vent pipe extends into
the vent cap sufcient distance so as to
result in a minimum pipe overlap of 1-1/4
inches. Secure the connection between the
vent pipe and the vent cap by attaching the
two sheet metal strips extending from the
vent cap assembly into the outer wall of the
vent pipe. Use the two sheet metal screws
provided to connect the strips to the pipe
section. See Diagram 4.
9) Install wall thimble in the center of the
10" square and attach with wood screws
(Diagram 5).
Roof Pitch Minimum Vent Height
Feet Meters
at to 7/12 2 0.61
over 7/12 to 8/12 2 0.61
over 8/12 to 9/12 2 0.61
over 9/12 to 10/12 2.5 0.76
over 10/12 to 11/12 3.25 0.99
over 11/12 to 12/12 4 1.22
over 12/12 to 14/12 5 1.52
over 14/12 to 16/12 6 1.83
over 16/12 to 18/12 7 2.13
over 18/12 to 20/12 7.5 2.29
over 20/12 to 21/12 8 2.44
VERTICAL
TERMINATIONS
1) Maintain the 1-1/4" clearances
(air spaces) to combustibles when
passing through ceilings, walls,
roofs, enclosures, attic rafter, or other
nearby combustible surfaces. Do
not pack air spaces with insulation.
Check the "Venting Arrangement"
section for the maximum vertical
rise of the venting system and
the maximum horizontal offset
limitations.
2) Set the gas appliance in
its desired location. Drop a
plumb bob down from the
ceiling to the position of the
appliance ue exit, and mark the location
where the vent will penetrate the ceiling.
Drill a small hole at his point. Next, drop a
plumb bob from the roof to the hole previously
drilled in the ceiling, and mark the spot where
the vent will penetrate the roof. Determine
if ceiling joists, roof rafters or other framing
will obstruct the
venting system.
You may wish
to relocate the
appliance or to
offset, as shown
in Diagram 2 to
avoid cutting load
bearing mem-
bers.
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