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DVVK-5F FLEX VENT INSTRUCTIONS
The
DVVK-5F FLEX VENT KIT
includes the following components:
• (1) Horizontal Termination Cap
• (1) 4-foot section of Flex vent with spacers (5" flue/8" outer
pipe) with flue adapter collar
•
(1) Wall Firestop/Thimble Assembly
•
Hardware pack that includes band clamps and screws
Flex venting can be installed either vertically or horizontally off of the DVP 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 connec
-
tions, allow a minimum rise of 2". Refer to the Figure 70 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 materi-
als.
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 71.
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
72.
Maintain equal distance between spring spacers.
Figure 71
Figure 72
3. Use existing 8" diameter inlet collar to attach outer vent pipe.
4. 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 10" wide by 12" high. The minimum combustible clearance
from the horizontal vent is 1" from sides and bottom, and 3" above the
vent pipe.
See Figure 74.
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 the venting through
the wall to the fireplace.
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.
8. 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.
9. 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 73.
10. Attach the Outer Vent pipe to the 8" diameter collar on the fireplace
with a large band clamp provided. Sealant may also 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 73
Figure 74
FLEX OUTER VENT
FLEX FLUE PIPE
SPACER
SPRINGS
BAND CLAMP
5” DIA. FLUE
ADAPTOR
COLLAR
5” DIA. FLEX
FLUE PIPE
8” DIA. FLEX
VENT PIPE
APPLY HIGH
TEMPERATURE
SEALANT
8” DIA. FIREPLACE
INLET COLLAR