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INSTALLATION
MANTEL LEG
CLEARANCES
Combustible mantel leg clearances as per
diagram below:
152m m Si de W al l
P36
Fi r epl ace
Maximum
38mm
51m m
projection
at 51mm
minimum
127m m
clearance.
Al l ow abl e m ant el l eg
pr oj ect i on.
FRAMING AND
FINISHING
1) Determine the total thickness of facing
material (e.g. drywall plus ceramic tiles) to
allow the fi nished surface to be fl ush with
the front of the unit. Total facing thickness
can vary from 1/2" (13mm) to 1-1/4" (32mm)
thick.
Install Side Nailing Strips, Top Facing
Support, and Top Standoffs before
unit is slipped into position. See "Unit
Assembly Prior to Installation" section
for assembly details.
NOTE:
When using the Premium Flush Front
option, a fi nishing trim (962mm cover)
needs to be installed to cover the
spacers.
Maintain a physical gap between lining
and spacers 2-5mm. (5mm clearance to
framing each side).
8
2) Frame in the enclosure for the unit with
framing material.
Standard Framing Dimensions
A
B
C
36-1/4"
36-1/4"
12-3/4"
921mm
921mm
324mm
Framing Dimensions with
Premium Flush Front Option
A
B
C
37-1/4"
37-1/4"
17-3/8"
944mm
946mm
432mm
* 'D' is Minimum height to combustible mate-
rials including the Minimum 2" (51mm) Top
clearance to the Horizontal Flue, see fl ue
clearances in section "Clearances."
3) For exterior walls, insulate the enclosure to
the same degree as the rest of the house,
apply vapour barrier and drywall, as per
local installation codes. (Do not insulate
the fi replace itself.)
4) The top of the unit must not be closer than
32" (813mm) to the ceiling.
Top Header
1/2"
(13mm)
Drywall
2"
(51mm)
3-1/2"
(89mm)
Opening for gas
connection
D
Note: 40-1/2" (1029mm) is the minimum
height for both fl ex termination or
46"*
Simpson Dura-Vent fl ueing.
1126mm*
Note:The unit does not have to be completely
enclosed in a chase. The clearance on
top of the unit is 0" to the standoffs so
combustible building materials can be
D
laid directly on top of the standoffs. You
46-1/2"*
must maintain 1-1/2" (38mm) clearance
1182mm*
from the fl ue to combustible materials
for fl ex (1-1/4"
Dura-Vent).
5) Use steel studs for framing where the
1-1/2" (38mm) clearance from the fl ue to
combustible material cannot be maintained,
e.g. front top header.
Premium Flush Front Framing
Do not use combustible material as lining (eg.
timber) around the fi replace as shown in the
shaded area in the diagram below.
Regency
10" (254mm) dia. hole
through wall for Flex
or for DuraVent
12-3/4"
4"
(102mm)
(324mm)
(32mm) for Simpson
®
PG36-5 Gas Log Fireplace
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