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DVVK-4F FLeX VenT InSTRUCTIonS - ToP VenT onLY
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
Flex venting can be installed either vertically or horizontally off of the DVP36 Series fireplaces. When installing a horizontal vent run
from top connections, maintain at least ½" rise for every 12" of vent run. When venting horizontal off the rear vent connections, allow
a minimum rise of 2". Refer to Figure 57 when mounting termination near vinyl siding.
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.
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
3.
Remove the 6-⅝" diameter 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.
26927-8-0611
SPACER
SPRINGS
FLEX FLUE PIPE
Figure A
Figure B
• (1) 7" diameter Outer Vent adapter collar
• (1) Wall Firestop/Thimble Assembly
• Hardware pack that includes band clamps and screws
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. NOTICE: 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.
Top of Vent
3" (76 mm)
1" (25 mm)
Figure C
Combustibles NOT
allowed in shaded
area
4" Diameter flue
7" Diameter
intake vent
1"
(25 mm)
Figure D
Page 33
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