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FIG. 16
CEILING FIRESTOP
Min. 1' Clearance
Min. 1' Clearance
Step 4.
Assemble the desired lengths of GS pipe and
elbows necessary to reach from the stove up
through the round support box. Ensure that all
pipe and elbow connections are in their fully
twist-locked position. Be sure to seal the outer
pipe with appropriate sealant (high temperature
silicone).
Step 5.
Cut a hole in the roof centered on the small
drill hole placed in the roof in Step 2. The hole
should be of sufficient size to meet the minimum
requirements for clearance to combustibles, as
specified. Continue to assemble lengths of pipe
and elbows necessary to reach from the ceiling
support box up through the roof line. Galvanized
pipe and elbows may be utilized in the attic, as
well as above the roofline. The galvanized finish
is desirable above the roofline, due to its higher
corrosion resistance.
Page 24
QFP 30 Direct Vent Gas Fireplace
VERTICAL INSTALLATION, CONT.
NAILS
Min. 1-1/2' Clearance
Min. 1-1/2" Clearance is for
either vertical or horizontal instal-
lations.
3-1/4" clearance is required for
installations that use a chase
only.
Min. 1' Clearance
NOTE:
(1)
If an offset is necessary in the attic to avoid
obstructions, it is important to support the vent pipe
every 3' (914mm) to avoid excessive stress on the
elbows, and possible separation. Wall straps are
available for this purpose (Figure 11).
(2)
Whenever possible, use 45° elbows, instead of 90°
elbows. The 45° elbow offers less restriction to the
flow of flue gases and intake air.
Step 6.
Slip the flashing over the pipe section(s) protruding
through the roof. Secure the base of the flashing
to the roof with roofing nails. Insure the roofing
material overlaps the top edge of the flashing as
shown in Figure 14.
03/21/01 #250-6120
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