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18
RDVN Series Direct Vent Gas Fireplace
20007628
STEP 5
Use appropriate length of pipe section - telescopic or
fixed - and install the horizontal vent sections. The 20”
(508 mm) section of pipe which goes through the wall is
packaged with the 7TDVSK starter kit, and can be cut
to suit if necessary. (Fig. 28)
Sealing vent pipe and firestop gaps with
high temperature sealant will restrict cold
air being drawn in around fireplace.
CFM137
Rear Vent length
2/26/01 sta
X
High Temperature
Sealant
CFM137
Fig. 28 Apply high temperature sealant.
STEP 6
Apply high temperature sealant to 4” (102 mm) and 7”
(178 mm) collars or the termination one inch away form
the end. Guide the vent termination’s 4” and 7” collars
into their respective vent pipes. Double check that the
vent pipes overlap the collars by 2” ( 51 mm). Secure
the termination to the wall with screws provided and
caulk around the wall plate to weatherproof. (Fig. 29)
CFM138
4", 7" collar
2/26/01 sta
X
X
CFM138
Fig. 29 Horizontal length requirement.
Vertical Sidewall Installation
Flex Vent Pipe
Follow Step 1 and 2 on Page 17.
Step 3
Install the four (4) spacer springs on the 4” flex vent
pipe. When installing the spacer springs around the 4”
pipe, stretch the spring to approximately 15” (381 mm),
wrap the spring around the pipe and interlock the ends
of the spacer spring approximately 2” (51 mm). (Fig.
30) Measure 8” (203 mm) from the end of the pipe.
Place the next spring 8” (203 mm) from the previously
installed spring. Place the next spring approximately
8” (203 mm) from the last spring. Finally place the last
spring approximately 8” (203 mm) from the last spring
installed. (Fig. 31) Maintain equal spacing between
spacer springs.
T185
spacer springs
12/3/03 djt
Spacer
Springs
Flex Outer Vent
Flue Pipe
T185a
Fig. 30 Wrap spacer spring around flex flue pipe, overlapping
ends.
4” Flex Vent
Pipe
Spacer Spring
FP1474a
Fig. 31 Install spacer springs.
8"
(203mm)
8"
(203mm)
8"
(203mm)
FP1474a
spacer springs
4/04 djt
8"
(203mm)