25613-0-0309Page 36
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
ue vent at 8" and 12" intervals along its length. See Figure 55.
If not, stretch the spacer springs to about 15" long and wrap them
around the ue, then interlock the ends of each spring about 2".
See Figure 56. Maintain equal distance between spring spacers.
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 56.
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 57.
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.
8”DIA. FLEX
VENTPIPE
5”DIA. FLEX
FLUEPIPE
5”DIA. FLUE
ADAPTOR
COLLAR
8”DIA. INLET
ADAPTORCOLLAR
(WITHGASKET)
BANDCLAMP
APPLYHIGH
TEMPERATURE
SEALANT
Flex venting can only be installed vertically off of the DVX Series replaces. When installing a horizontal vent run from top connec-
tions, maintain at least ½" rise for every 12" of vent run. Refer to the Figure 54 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 conguration.
Because of sharp edges, always use gloves when handling the ex 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.

Figure 55

Figure 57

The DVVK-5F FLEX VENT KIT includes the following components:

Figure 58

Figure 56

DVVK-5F FLEX VENT INSTRUCTIONS

• (1) Horizontal Termination Cap

• (1) 4-foot section of Flex vent with spacers (5" ue/8"

outer pipe) with ue adapter collar

• (1) Wall Firestop/Thimble Assembly

• Hardware pack that includes band clamps and screws

SPACER
SPRINGS
FLEXFLUE PIPE
FLEXOUTER VENT