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General Vent Installation Information
SIMPSON DURAVENT
When using Simpson Duravent pipe a Duravent adapter must be used
(part # ZDVDFA for fireplaces). Follow installation instructions pro-
vided by Simpson Duravent for installation of pipe and adhere to the
clearance to combustibles provided in this manual. Apply a bead of
Mill Pac high temp sealant to all joints of pipes, adapters and termina-
tion.
Flex Pipe Venting
Flex pipe is shipped in unexpanded length. When installing pipe
expand the lengths. Pipe can be expanded to twice their lengths e.g. 4ft.
to 8ft.
Do not use more than 2 couplers to extend short pipes. Single sections
are preferred in an installation attaching at the fireplace and termina-
tion.
Place the spring spaces provided approximately every two feet to stabi-
lize 4” flex in the center of 7” flex. When forming bends place spring
in bend or before and after. (See Fig. 1).
Horizontal runs require support metal straps every 2 feet. In off set
installation support straps should be used to stabilize pipe.
Expand 4” and 7” flex pipe to the point that the 7” protrudes approxi-
mately 2 to 3 inches past outer wall and the 4” flex protrudes approxi-
mately 2 to 3 inches past the 7” flex. See Fig. 1. Attach the 4” pipe to
the termination first and secure with sealant and 4 screws/washers, then
attach the 7” flex to the termination with sealant and 4 screws/washers.
Termination may then be moved back to the outer wall and attached to
home by screwing into the framing. Silicone around termination to
waterproof. If siding shield is going to be used attach this using same
attaching hole as the top of termination after termination has been
caulked for water proofing.
Use Term Hi Temp Sealant
Apply a bead of mill pac high temp sealant to all joints and secure with
4 screws/washers at every connection provided at fireplace, termination
and any joint if joining any sections of pipe.
NOTE:
It is critical to the proper and safe operation of this fireplace that on all
connections the inner liner and the outer casing are both caulked with liberal
amounts of sealant. Do not use any kind of tape or silicone other than that
recommended in this manual. Mill Pac Sealant
FRAMING DIMENSION
Combustible Wall
Cut a 11” hole through exterior wall and frame as shown below.
Non combustible Wall
Cut or drill 8” or 204mm diameter hole.
OPTIONAL
CLAMPS
FIGURE 1
MAX. DISTANCE BETWEEN SPACERS 2 FEET
SPRING SPACERS
OPTIONAL
CLAMPS
SEAL WITH HIGH TEMP. SEALANT
SEAL WITH HIGH TEMP. SEALANT
