Regency Fireplace Products Greenfire GF950L Owners & Installation Manual page 49

VERTICAL INLINE POWER FLUE TERMINATIONS
RIGID PIPE 102MM X 168MM
Note: A top clearance of 76mm and side bottom
clearance of 51mm must be maintained,
except when passing through a wall
or ceiling, or at the termination where
a firestop or wall thimble reduces
the required clearance to 38mm.
We recommend framing a 279mm x
279mm (inside dimensions) hole to
give structural rigidity for mounting the
termination.
1) Maintain the 51mm clearances (air spaces)
t o c o m bu s t i bl e s w h e n
passing through ceilings,
walls, roofs, enclosures,
attic rafters, or other
n e a r by c o m b u s t i b l e
surfaces, ensuring a
firestop or wall thimble is
used as noted above. Do
not pack air spaces with
insulation. Check the
"Flueing" section for the
maximum vertical rise of
the flueing system and
the maximum horizontal
offset.
2) Set the gas appliance in
its the desired location.
Drop a plumb bob from the
ceiling to the appliance flue exit
and mark where the flue will penetrate the ceiling.
Drill a small hole at this point. Next, drop a plumb
bob from the roof to the hole drilled in the ceiling
and mark where the flue will penetrate the roof.
Determine whether ceiling joists, roof rafters, or
other framing will obstruct the flueing system. You
may wish to relocate
the appliance or to
offset as shown in
plumber's
Diagram 2 to avoid
tape
cutting load bearing connected
to wall strap
members.
wall
3) A firestop spacer
strap
is to be installed in
accordance with local
building codes.
10"(254mm)
square hole
framing
firestop
spacer
Diagram 3
Note: All vertical terminations are flued using
102mm x 168mm flueing and Simpson Duravent
only.
A minimum of 101mm is required between the unit
and the inline power flue. Determine the overall
height of the chimney from the top side of the
inline power flue to the underside of the flashing.
Regency GF950L-2 Gas Fireplace
4) Assemble the desired pipes and elbows. Ensure
all pipes and elbow connections are twist-locked
and sealed.
Note:
For best results and optimum performance
with each approved flueing system, "Mill-
Pac" sealant is strongly recommended at
every inner pipe connection. Failure to use
Mill-Pac may result in drafting or perfor-
mance issues not covered under warranty.
Inline
Power Flue
Terminal
5) Cut a hole in the roof centered on the small hole
drilled in Step 2. The hole should be sized to meet
the minimum requirement of 38mm clearance to
combustibles. Slip the flashing under the shingles
(shingles should overlap half the flashing) as per
Diagram 1
Diagram 4.
Diagram 4 -The upper half of the flashing is
installed under the roofing material and not
nailed down until the chimney is installed, to
o
45
allow for small adjustments.
Elbows
6) Continue to assemble pipe lengths. Support the
inline power flue to avoid excessive stress on the
Firestop
Spacer
pipe and elbows. The inline power flue can be
screwed onto existing studs for support.
Diagram 2
Note: If an offset is needed in the roof space,
it is important to support the flue pipe at
every 0.9 meter 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 roofline
due to its higher corrosion resistance. Continue
to add pipe sections through the flashing until
the height of the flue cap meets the minimum
height requirements specified in Diagram 5 or
local codes. Note that for steep roof pitches, the
vertical height must be increased.
Ruban de
plombier
relié à
l'attache
murale
Attache
murale
walstrp.eps
installation
Flue
Diagram 5
Roof Pitch Minimum Flue Height
Meters
flat to 30.26 0.61
o
over 30.26 to 33.69 0.61
o o
over 33.69 to 36.37 0.61
o o
over 36.37 to 39.81 0.76
o o
over 39.81 to 42.51 0.99
o o
over 42.51 to 45.00 1.22
o o
over 45.00 o to 49.40 o 1.52
over 49.40 o to 53.13 o 1.83
over 53.13 o to 56.31 o 2.13
over 56.31 to 59.04 2.29
o o
over 59.04 to 60.26 2.44
o o
A poor draft, or down drafting, can result from high
wind conditions near big trees or adjoining roof
lines. In these cases, increasing the flue height
may solve the problem.
7) Ensure flue is vertical and secure the base of
the flashing to the roof with roofing rails. Slide
the storm collar over the pipe section and seal
with a mastic.
8) Install and twist-lock the vertical termination
cap.
Note: Any closets or storage spaces that the
flue passes through must be enclosed.
Offset Chart
Offset
Pipe Length (L)
mm
mm
121 0
229 152
286
229
337
305
552
610
768
914
965
1219
L
Offset
Height
mm
337
445
495
552
768
991
1194
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