Heat & Glo Gas Fireplace CFX-Crescent Owner's Manual page 26

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1. Attach the flashing
and apply sealant
around the edges of
the flashing base.
2. Attach the storm
collar over the flash-
ing joint and apply
sealant between the
storm collar and
vertical pipe.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
To seal the roof hole, and to divert rain and snow
from the vent system:
• Attach a flashing to the roof using nails, and use
a non-hardening mastic around the edges of the
flashing base where it meets the roof.
• Attach a storm collar over the flashing joint to
form a water-tight seal. Place non-hardening
mastic around the joint, between the storm collar
and the vertical pipe.
• Slide the termination cap over the end of the vent
pipe and rotate the pipe clockwise 1/4 turn.
2 FT.
2 FT. MIN.
MIN.
LOWEST
DISCHARGE
OPENING
TERMINATION
CAP
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Roof Pitch
flat to 6/12
over 6/12 to 7/12
over 7/12 to 8/12
over 8/12 to 9/12
over 9/12 to 10/12
over 10/12 to 11/12
over 11/12 to 12/12
over 12/12 to 14/12
over 14/12 to 16/12
over 16/12 to 18/12
over 18/12 to 20/12
over 20/12 to 21/12
Figure 19. Minimum Height from Roof to
Lowest Discharge Opening
HORIZONTAL
OVERHANG
VERTICAL
WALL
X
12
ROOF PITCH
IS X/ 12
H (min.) ft.
1.0
1.25
1.5
2.0
2.5
3.25
4.0
5.0
6.0
7.0
7.5
8.0