Operating instructions

Installation of Side Wall Venting
Figure 25 - Flex pipe spring spacing guide.
Horizontal runs require support metal straps every 2ft. In an offset installation support straps
should be used to stabilize pipe.
Expand 4" and 7" flex pipe to the point that the 7" protrudes approximately 2 to 3 inches past outer
wall and the 4" flex protrudes approximately 2 to 3 inches past the 7" flex. Attach the 4" pipe to the
termination first and secure with sealant and four screws then attach the 7" flex to the termination
with caulking and four screws. Termination may then be moved back to the outer wall and attached
to home screwing into the framing. Use silicone around the termination to provide waterproof seal.
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 waterproofing.
Use High Temperature Sealant
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
Apply a bead of Mill Pac high temp sealant to all joints and use four screws to secure each pipe at
fireplace, termination and any joint if joining any sections of pipe.
The minimum distance from the bottom of fireplace to centre of vent is 37-1/2" [95cm].
For combustible walls: Cut a hole through the wall allowing for an 11" x 11" (inside dimension) wall
thimble. For a non-combustible wall: Cut an 8" diameter hole (see Figure 26).
Note that the clearance to combustibles is stated on page 9.
Select the approximate vent length, precise measurements are not needed as your flex pipe can
be expanded to twice its shipped length for ease of installation.
To install wall thimble centre over 11" x 11" framing from both sides of wall and secure. Route flex
vent pipe through wall thimble (see Figure 5).
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