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The DVVK-5F FLEX VENT KIT includes the following compo-
nents:
•
(1) Horizontal Termination Cap
•
(1) 4-foot section of Flex vent with spacers (5-inch flue/
8-inch outer pipe) with flue adapter collar
•
(1) Wall Firestop/Thimble Assembly
•
Hardware pack that includes band clamps and screws
Maintain at least ½-inch rise for every 12 inches of vent run.
•
Because of sharp edges, always use gloves when han-
dling the flex vent components.
•
Always follow the general venting requirements for
vent terminal location, vent lengths, and clearance to
combustible materials.
•
Always stretch and secure venting with wire or metal
strapping to ensure that the horizontal runs do not sag.
•
Vent connections should overlap a minimum of 1 inch
for proper sealing.
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 inch intervals along its length. See Figures
52 & 53. If not, stretch the spacer springs to about 15 inches
long and wrap them around the flue, then interlock the ends of
each spring. Maintain equal distance between spring spacers.
35362-5-0217
DVVK-5F FLEX VENT INSTRUCTIONS
CAUTION
Figure 52
5" FLEX
8" FLEX
VENT PIPE
VENT PIPE
3.
Attach a 6-inch piece of hard pipe to raise the connection
point above the unit.
4.
Use existing 8-inch diameter inlet collar to attach outer 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 10-inches wide by
12-inches high. The minimum combustible clearance from the
horizontal vent is 1 inch from sides and bottom, and 3 inches
above the vent pipe.
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.
Do not use force when installing the Horizontal Vent
Termination into the flex venting. Always stretch venting
out first, then cut off excess 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.
Figure 53
CAUTION
SPACER
SPRING
Page 29
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