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19
W415-0748 / 12.12.08
3.2 USING FLEXIBLE VENTING COMPONENTS
Do not allow the inner flex pipe to bunch up on horizontal or vertical runs and elbows. Keep it pulled tight.
Spacers are attached to the inner flex pipe at predetermined intervals to maintain an even air gap to the outer
flex pipe. This gap is required for safe operation. A spacer is required at the start, middle and end of each elbow
to ensure this gap is maintained. These spacers must not be removed.
!
WARNING
ELBOW
SPACERS
For safe and proper operation of the fireplace, follow the venting instructions exactly.
All inner flex pipe and outer flex pipe joints may be sealed using high temperature
sealant W573-0002 (not supplied) or the high temperature sealant W573-0007 Mill
Pac (not supplied). However, the high temperature sealant W573-0007 Mill Pac (not
supplied) must be used on the joint connecting the inner flex pipe and the exhaust
flue collar.
Use only approved flexible vent pipe kits marked:
“Wolf Steel Approved Venting”
as identified by the stamp only
on the outer flex pipe.
22.1
3.2.1 HORIZONTAL AIR TERMINAL INSTALLATION
FIGURE 3.2
FIGURE 3.2.1d
FIGURE 3.2.1a-c
A
.
S
tretch the inner
f
lex pipe to the required length
taking into account the additional length needed
for the finished wall surface. Slip the vent pipe a
minimum of 2" over the inner sleeve of the air
terminal and secure with 3 #8 screws. Apply a
heavy bead of the high temperature sealant
W573-0007 Mill Pac (not supplied).
B
. Using the outer flex pipe, slide over the outer
combustion air sleeve of the air terminal and secure
with 3 #8 screws. Seal using high temperature sealant
W573-0002 (not supplied).
C
. Insert the vent pipes through the firestop maintaining the required
clearance to combustibles. Holding the air terminal (lettering in
an upright, readable position), secure to the exterior wall
and make weather tight by sealing with caulking
(not supplied).
D
. If more vent pipe needs to be used to reach the fireplace,
couple them together as illustrated. The vent system must
be supported approximately every 3 feet for both vertical
and horizontal runs. Use noncombustible strapping to
maintain the minimum 1" clearance to combustibles.
T
he air terminal mounting plate may be recessed into the exterior wall
o
r siding no greater than the depth of its return flange.
HI-TEMP
SEALANT
#8 X 1/2” SELF DRILLING
SCREWS & WASHERS
INNER COUPLER
OUTER COUPLER
OUTER
FLEX PIPE
INNER
FLEX PIPE
OUTER FLEX
PIPE
CAULKING
SCREWS
#10x2"
PIPE
OUTER FLEX
SEALANT
2" OVERLAP
HI-TEMP
INNER FLEX
PIPE
23.3
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