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RDV4136 Series Direct Vent Gas Fireplace
10010618
Vertical Sidewall Installation
Flex Vent Pipe
NOTE: The 40” (1016 mm) flex vent is used for 90° off
the top of the unit then out the back wall.
Follow Step 1 and 2 on Page 15.
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). Meas-
ure 6³⁄₄” (172 mm) from the end of the pipe. Place the
next spring 5” (127 mm) from the previously installed
spring. Place the next spring 6” (152 mm) from the last
spring. Finally place the last spring 12” (305 mm) from
the last spring installed. (Fig. 27)
12"
(305mm)
6"
(152mm)
5"
(127mm)
6"
(172mm)
FP1474
spacer springs
4/04 djt
4” Flex Vent
Pipe
Spacer Spring
FP1474
Fig. 27 Install spacer springs.
Step 4
Install the 4” (102 mm) flex vent pipe to the appliance
collar as described on Page 12. Secure the end with
the first spring 6³⁄₄” (172 mm) from the flex pipe end to
the unit.
Step 5
Slide the 7” (178 mm) flex vent pipe over the 4” flex
vent pipe and secure the 7” collar as described on Page
12.
Step 6
Bend the flex pipe horizontal so the bottom of the
horizontal pipe measure 18¹⁄₂” (470 mm) from the top
of the unit immediately after the 90° formation. (Fig. 28)
Be sure to follow the 1” (25 mm) rise in a 24” (610 mm)
horizontal run rule.
Step 7
Install the 4” flex then 7” flex to the termination.
FP1846
flex 90 bend
3/08 djt
6”
(165 mm)
FP1846
Fig. 28 Bend flex vent at 90° so horizontal portion is 6¹⁄₂”
(165 mm) off top of unit.
Below Grade Installations
When it is not possible to meet the required vent ter-
minal clearances of 12” (305 mm) above grade level a
snorkel vent kit is recommended. It allows installation
depth of down to 7” (178 mm) below grade level. The
7” is measured from the center of the horizontal vent
pipe as it penetrates through the wall.
If venting system is installed below
ground, we recommend a window well with
adequate and proper drainage.
Ensure sidewall venting clearances are observed.
If installing a snorkel a minimum 24” (610 mm) vertical
rise is necessary. The maximum horizontal run with
the 24” (610 mm) vertical pipe is 36” (914 mm). This
measurement is taken from the collar of the fireplace
(or transition elbow) to the face of the exterior wall.
Refer to the Sidewall Vent Graph for extended
horizontal run if the vertical rise exceeds 24” (610 mm).
1. Establish vent hole through the wall. (Fig. 21)
2. Remove soil to a depth of approximately 16” (406
mm) below base of snorkel. Install drain pipe. Install
window well (not supplied). Refill hole with 12” (305
mm) of coarse gravel leaving a clearance of approxi-
mately 4” (102 mm) below snorkel. (Fig. 29)
3. Install vent system.
4. Ensure a watertight seal is made around the vent
pipe coming through the wall.
5. Apply high temperature sealant caulking (supplied)
around the 4” and 7 “ snorkel collars.
6. Slide the snorkel into the vent pipes and secure to
the wall.
7. Level the soil to maintain a 4” (102 mm) clearance
below snorkel. (Fig. 29)
Do not back fill around snorkel. A clear-
ance of at least 4” (102 mm) must be main-
tained between snorkel and the soil.