Heat & Glo ST-HVBI-AU Installation And Operation Instructions Manual page 20

• Adjust the termination cap to its fi nal exterior position
on the building and interlock the fl ue sections.
WARNING: THE TERMINATION CAP MUST
!
BE POSITIONED SO THAT THE ARROW IS
POINTING UP.
• Use a high-temperature sealant gasket to seal be-
tween the pipe and exterior fi restop.
1" (25 mm)
7-1/2"
(192 mm)
MINIMUM
Figure 28. Termination Cap
For Vertical Terminations - To locate the fl ue and
install the fl ue sections:
• Locate and mark the fl ue center point on the under-
side of the roof, and drive a nail through the center
point.
• Make the outline of the roof hole around the center
point nail.
• The size of the roof hole framing dimensions depend
on the pitch of the roof. There MUST BE a 1-inch
(25 mm) clearance from the vertical fl ue pipe to
combustible materials.
• Mark the roof hole accordingly.
• Cover the opening of the installed fl ue 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 fl ue sections up through
the roof hole and up past the roof line until you reach
the appropriate distance above the roof.
WARNING: FOLLOWING NATIONAL REG-
!
ULATIONS AND CODES OF PRACTICE
FOR MINIMUM CLEARANCES FROM GAS
TERMINALS, AND PLACEMENT OF GAS
TERMINAL.
20 Heat & Glo • ST-HVBI-AU • 2082-900 Rev. J • 10/10
NOTE: This also pertains to vertical fl ue systems in-
stalled on the outside of the building.
To seal the roof hole, and to divert rain and snow from
the fl ue system:
• Attach a fl ashing to the roof using nails, and use a
non-hardening mastic around the edges of the fl ash-
ing base where it meets the roof.
• Attach a storm collar over the fl ashing 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 fl ue
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............................ 305 mm (1.0 ft.)*
6/12 to 7/12........................... 381 mm (1.25 ft.)*
Over 7/12 to 8/12 .................. 458 mm (1.5 ft.)*
Over 8/12 to 9/12 .................. 610 mm (2.0 ft.)*
Over 9/12 to 10/12 ................ 762 mm (2.5 ft.)*
Over 10/12 to 11/12 .............. 991 mm (3.25 ft.)
Over 11/12 to 12/12 .............. 1.2 m (4.0 ft.)
Over 12/12 to 14/12 .............. 1.5 m (5.0 ft.)
Over 14/12 to 16/12 .............. 1.9 m (6.0 ft.)
Over 16/12 to 18/12 .............. 2.2 m (7.0 ft.)
Over 18/12 to 20/12 .............. 2.3 m (7.5 ft.)
Over 20/12 to 21/12 .............. 2.5 m (8.0 ft.
* 91.4 cm minimum in snow regions
Figure 29. Minimum Height from Roof to
Lowest Discharge Opening
VERTICAL
WALL
X
30.5 cm
ROOF PITCH
IS X/ 30.5 cm
H (min.)