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Greenfire® GF1500L-2 Gas Fireplace
installation
5. Slip the assembled liner and termination
assembly through the thimble making sure the
termination cap faces up (there are markings
on the cap that show which way is up). This will
position the termination cap with proper down
slope for draining water. Fasten the cap to the
outer wall with the 4 supplied screws.
6. Pull the centre 127mm liner and outer 203mm
liner out enough to slip over the flue collars of
the fireplace. (You may wish to cut the liner
shorter to make it more workable.) Do not bend
liner more than 90
o
.
The liners must slip over
the collars a minimum of 35mm.
7. Apply Mill Pac over the fireplace inner collar and
slip the 127mm liner down over it and attach
with 3 supplied screws.
8. Do the same with the 203mm liner.
9. Apply a bead of silicone between the thimble
and termination and around the outer edge of
the terminal at the wall in order to keep the
water out.
Unit Installation With Horizontal Termination Flex System
4. Separate the 2 halves of the wall thimble and
securely fasten the one with the tabs to the
outside wall making sure that the tabs are on
top and bottom. Fasten the other thimble half
to the inside wall. The thimble halves slip
inside each other and can be adjusted for
51 x 102mm x 51mm x 152mm walls.
(311mm)
(311
mm)
ASTROCAP XL DIMENSIONS (946-
623/P)
"THIS UNIT MUST ALWAYS
TERMINATE / FLUE
DIRECTLY TO THE OUTDOORS."
AstroCap XL
Termination Cap
x 4 r 2
51mm X 102mm x 51mm x 152mm
8" (203) dia.
air intake
dia. flue pipe
with spring spacer
Screws
Screws
Wall Thimble*
*Mandatory on all
horizontal terminations.
NO
TE
• A top clearance of 76mm and side & bottom
clearance of 51mm must be maintained;
except when passing through a wall, ceil-
ing, or at the termination where the use of
a wall thimble reduces the required clear-
ance to 38mm. We recommend framing a
279mm x 279mm (inside dimensions) hole
to give structural rigidity for mounting
the termination.
1. Locate the unit in the framing, rough in the
gas (preferably on the right side of the unit).
Locate the centerline of the termination and
mark wall accordingly. Cut an 279mm hole in
the wall (inside dimension).
2. Level the fireplace and fasten it to the framing
using nails or screws through the nailing
strips.
3. Assemble the flue assembly by applying Mill
Pac to the 127mm inner collar of the termination
and slipping the 127mm liner over it at least
35mm. Fasten with the 3 screws (drilling pilot
holes will make this easier). Apply Mill Pac or
high temperature silicone to the 203mm flex
pipe and slip it over the outer collar of the vent
terminal at least 35mm and fasten with the 3
screws.
NO
TE
• Horizontal sections must be supported at
intervals not exceeding 0.9 meter. (Flame
picture and performance will be affected
by sags in the liner).
IMPOR
TANT
• Do not locate termination hood
where excessive snow or ice
buildup may occur. Be sure to
check flue termination area after
snow falls, and clear to prevent
accidental blockage of flueing
system. When using snow blowers,
make sure snow is not directed
towards vent termination area.
