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29004-0-0711
Page 35
INSTALLATION
1. Unpack vent components and check that all items are
included.
2. Check to see that the vent spacer springs are located around
the flue vent at 8" and 12" intervals along its length.
See
Figure
A.
If not, stretch the spacer springs to about 15" long
and wrap them around the flue, then interlock the ends of
each spring about 2".
See
Figure
B.
Maintain equal distance
between spring spacers.
FLEX OUTER VENT
FLEX FLUE PIPE
SPACER
SPRINGS
FIGURE A
8
(203 mm)
8
(203 mm)
8
(203 mm)
4 FLEX
VENT PIPE
SPACER
SPRING
FIGURE B
””
”
”
”
3. Remove the 6-⅝" diameter inlet Vent collar from the fireplace.
Replace this collar with the 7" diameter Flex Vent adapter
collar provided with the vent kit.
4. Slide the Flex Vent flue pipe into the Outer Flex Vent pipe.
5. Install the Wall Firestop/Thimble assembly as required through
the wall. Refer to the venting charts in the fireplace manual
to determine the proper height and size of the vent opening.
The minimum opening should be 9" wide by 11" high. The
minimum combustible clearance from the horizontal vent is
1" from sides and bottom, and 3" above the vent pipe.
See
Figure
D.
6. In most cases, after determining the length of the vent that
is needed, it may be easier to install the flue and outer vent
pipes to the Termination Cap first, then from the outside, feed
the venting through the wall to the fireplace.
7. If the venting is to long, trim off any excess vent before
attaching the vent end connectors.
8. Attach the Termination Cap to the outside of the house.
9. Prior to making the vent connections, apply high temperature
sealant (1000 degree F min.) to the vent connections before
securing with the band clamps provided. Note: the flue pipe
end
without the adapter
is to be installed to the Termination
Cap.
10. Apply sealant to the outside of the flue pipe adapter and
connect to the flex flue pipe. Then insert the adapter into the
fireplace flue. Secure flue adapter to the fireplace flue with a
minimum of two screws provided.
See
Figure
C.
11. Attach the Outer Vent pipe to the 7" diameter Collar on the
fireplace with a large band clamp provided. Sealant may also be
used on the outer vent connections.
12. Check all vent connections for tightness. Make sure horizontal
venting has the proper rise and combustible clearances
required. Refer to venting charts in fireplace instruction
manual.
BAND CLAMP
4 DIA. FLUE
ADAPTOR
COLLAR
4 DIA. FLEX
FLUE PIPE
7 DIA. FLEX
VENT PIPE
APPLY HIGH
TEMPERATURE
SEALANT
7 DIA. INLET
ADAPTOR COLLAR
(WITH GASKET)
FIGURE C
”
”
”
”
Top of Vent
Combustibles NOT
allowed in shaded
area
1"
1"
3"
(25 mm)
(25 mm)
(76 mm)
FIGURE D
7” Diameter Flex
intake vent
4” Diameter flue
Flex venting can be installed vertically off of the DLCX36SP Series fireplaces. When installing a horizontal vent run from top connections,
maintain at least ½" rise for every 12" of vent run.
CAUTIon: Always stretch and secure venting with wire or metal strapping to ensure that the horizontal runs do not sag.
If space permits, it is generally easier to attach venting in the top vent configuration.
Because of sharp edges, always use gloves when handling the flex vent components.
vent connections should overlap a minimum of 1" for proper sealing.
Always follow the general venting requirements for vent terminal location, vent lengths, and clearance to combustible materials.
The
DvvK-4F FLEX vENT KIT
includes the following components:
• (1) Horizontal Termination Cap
• (1) 4-foot section of Flex vent with spacers (4" flue/7" outer
pipe)
• (1) 4" diameter Flue adapter collar
• (1) 7" diameter Outer Vent adapter collar
• (1) Wall Firestop/Thimble Assembly
• Hardware pack that includes band clamps and screws
DvvK-4F FLEX vENT INSTRUCTIONS