47
Initial Installation
QUALIFIED INSTALLERS ONLY
Figure 62. Vertical Vent Termination
Step 4.
The vent pipe must extend into the vent cap at least 1¼” (320 mm). Secure the connection
between the vent cap and the pipe by attaching the two (2) sheet metal straps, which extend
from the vent cap assembly to the outer wall of the vent pipe. Bend any remaining portion of
the strap back towards the vent cap.
Step 5.
Position the horizontal vent termination in the center of the thimble and attach to the exterior
wall with the four screws provided. The arrow on the vent termination must be pointing up. Run
a bead of high-temp silicone around the edges of the vent cap to make a seal with the wall.
Ensure the proper clearances to combustibles have been maintained.
V
eRticaL
t
eRmination
:
Vertical
Termination
Storm Collar
Flashing
Roofing nails
Elbow Strap
Step 1.
Check “
I
nItIal
I
nstallatIon
- V
entIng
c
learances
” for required clearances to
combustibles when passing through
ceilings, walls, roofs, enclosures, attic
rafters, or other nearby combustible
surfaces. Do not pack air spaces with
insulation.
Step 2.
Set the fireplace in the desired location.
Drop a plumb bob down from the
ceiling to the fireplace flue exit and
mark the location where the vent will
penetrate the ceiling. Drill a small hole
at this point. Next, drop a plumb bob
from the roof to the hole and mark the
spot where the vent will penetrate the
roof. Determine if ceiling joists, roof
rafters, or other framing will obstruct
the venting system. Relocate the
fireplace or offset the venting to avoid
cutting load bearing members.
Step 3.
To determine the length of pipe required, measure room height, ceiling thickness, and vertical
rise in an attic or second story. Firestops are required at each floor level beyond the first floor
ceiling support/wall thimble cover or cathedral ceiling support box. If an offset is required to
avoid obstructions, use a pair of 45 degree elbows. For proper support, use elbow straps with
offsets. Use wall straps for long vertical runs. Attic insulation shield is required in attic.
Step 4.
Measure roof pitch. Select the proper flashing and storm collar and determine the height above
the roof (see Figure 62). A non-corrosive pipe material must be used for all exterior pipe
lengths. Seal nail heads with silicone.
Содержание G39LI
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