Heat & Glo LCOR-HVB-CE Installer's Manual page 30

For Vertical Terminations - To locate the flue and install
the flue sections:
• Locate and mark the flue centerpoint on the underside of
the roof, and drive a nail through the centerpoint.
• Make the outline of the roof hole around the centerpoint
nail.
• The size of the roof hole framing dimensions depend on the
pitch of the roof. There MUST BE a 25.4mm clearance
from the vertical flue pipe to combustible materials.
• Mark the roof hole accordingly.
• Cover the opening of the installed flue pipes.
• Cut and frame the roof hole.
• Use framing lumber the same size as the roof rafters
and install the frame securely. Flashing anchored to the
frame must withstand heavy winds.
• Continue to install concentric flue sections up through
the roof hole (for inside flue installations) or up past the
roof line until you reach the appropriate distance above
the roof (for outside terminations).
WARNING: FOLLOWING NATIONAL REGU-
!
LATIONS AND CODES OF PRACTICE FOR
MINIMUM CLEARANCES FROM GAS TERMINALS,
AND PLACEMENT OF GAS TERMINAL.
NOTE: This also pertains to vertical flue systems installed
on the outside of the building.
30 Heat & Glo • PIER/ST/L&RCOR-HVB-CE • 2068-900 Rev. H • 6/07
To seal the roof hole, and to divert rain and snow from the
flue 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 flue pipe and
snap into place.
50.8 cm
LOWEST
DISCHARGE
OPENING
TERMINATION
CAP
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Roof Pitch
flat to 6/12
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
* 91.4 cm minimum in snow regions
Figure 25. Minimum Height from Roof to
Lowest Discharge Opening
VERTICAL
WALL
X
30.5 cm
ROOF PITCH
IS X/ 30.5 cm
H (min.)
305 mm (1.0 ft.)*
381 mm (1.25 ft.)*
458 mm (1.5 ft.)*
610 mm (2.0 ft.)*
762 mm (2.5 ft.)*
991 mm (3.25 ft.)
1.2 m (4.0 ft.)
1.5 m (5.0 ft.)
1.9 m (6.0 ft.)
2.2 m (7.0 ft.)
2.3 m (7.5 ft.)
2.5 m (8.0 ft.)