- 14 -
STEP 7
Support the horizontal pipes every 36 inches (914mm) with
metal pipe straps. Make sure that the horizontal vent pipe
is installed on a level horizontal plane.
STEP 8
Recheck the fireplace to make sure that it is levelled,
properly positioned, and nailed or screwed to the floor.
If applied, the fireplaces adjustable frame drywall strips
(nailing flanges) should be fastened. See "Framing &
Finishing.
Fig. 24
DO NOT BACK FILL AROUND SNORKEL.
SOIL SHOULD NOT BE LESS THAN 4"
(100mm) BELOW SNORKEL.
BELOW GRADE INSTALLATIONS
When it is not possible to meet the required vent terminal
clearances of 12 inches (305mm) above grade level a
model 7DVSKS vent kit is required. It allows installation
depth of down to 7 inches (178mm) below grade level. The
7 inches is measured from the centre of the horizontal vent
pipe as it penetrates through the wall.
If venting system is installed below ground,
we recommend a window well with adequate
and proper drainage.
INSTALLATION
Ensure sidewall venting clearances are observed.
The maximum horizontal run with 24" (610mm)
vertical rise is 36" (914mm) from the back of the
fireplace to the face of the exterior wall. See
vent graph (Fig. 18) for extended horizontal run
if the vertical exceeds 24" (610mm).
1.
Establish vent hole through the wall. See page 12
2.
Remove soil to a depth of approximately 16"
(406mm) below base of snorkel. Install window well
(not supplied). Refill hole with 12" (305mm) of
coarse gravel leaving a clearance of approximately
4" (100mm)below snorkel. (Fig. 25)
3.
Install vent system. See page 12, Steps 2 through
5.
4.
Ensure a watertight seal is made around the vent
pipe coming through the wall.
5.
Apply high temperature sealant caulking (supplied)
around the 4 and 7 inch 7DVSKS's snorkel collars.
6.
Slide into vent pipe and secure to the wall.
7.
Level the soil so as to maintain a 4"
(100mm)clearance below snorkel (Fig. 25).
DRAIN
7DVSKS
(SNORKEL)
GROUND LEVEL
WINDOW
WELL
A MINIMUM OF 24" (610mm)
VERTICAL PIPE MUST BE
INSTALLED WHEN USING
THE 7DVSKS KIT
4" (100mm) MIN. CLEARANCE
Fig. 25
