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31455-10-1115 Page 37
DVVK-5F FLEX VENT INSTRUCTIONS
The DVVK-5F FLEX VENT KIT LQFOXGHVWKHIROORZLQJFRPSR -
nents:
• (1) Horizontal Termination Cap
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• (1) Wall Firestop/Thimble Assembly
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Flex venting can be installed either vertically or horizontally
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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 the
Figure 53 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
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Because of sharp edges, always use gloves when handling
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Vent connections should overlap a minimum of 1” for proper
sealing.
Always follow the general venting requirements for vent ter-
minal 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
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Figure 64. If not, stretch the spacer springs to about 15” long
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each spring about 2”. See Figure 65. Maintain equal distance
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Figure 64
Figure 65
3. Use existing 8” diameter inlet collar to attach outer vent pipe.
4. Install the Wall Firestop/Thimble assembly as required
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manual to determine the proper height and size of the vent
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high. The minimum combustible clearance from the horizontal
vent is 1” from sides and bottom, and 3” above the vent pipe.
See Figure 67.
5. 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
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6. If the venting is to long, trim off any excess vent before
attaching the vent end connectors.
7. Attach the Termination Cap to the outside of the house.
CAUTION: Do not use force when installing the Horizontal
Vent Termination into the flex venting. Always stretch venting
out first, then cut off excessive vent material prior to sliding
the vent termination into the flue and inlet venting. Forcing
the termination cap into the flex venting will deform the flue
venting, which will restrict the exhaust gases, and cause
improper operation of the fireplace.
8. Prior to making the vent connections, apply high temperature
sealant (1000 degree F min.) to the vent connections before
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Cap.
9. Apply sealant to the outside of the flue pipe adapter and
connect to the flex flue pipe. Then insert the adapter into the
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See Figure 66.
10. Attach the Outer Vent pipe to the 8” diameter collar on the
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be used on the outer vent connections.
11. 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.
Figure 66
Figure 67