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Heat & Glo • ST-HVBI-AUB • 2082-980 Rev. B • 3/11
If the area above the ceiling
IS
an attic, position and
secure the fi restop on top of the previously framed
hole.
Figure 27. Flueing through the Wall
Figure 26. Attic Firestop
• The termination kit should pass through the wall
fi restops from the exterior of the building.
F. Flue Termination
For Horizontal Terminations -
To attach and secure
the termination to the last section of horizontal fl ue:
• The rear fl ue heat shield MUST be placed one inch
above the top of the fl ue between the wall shield and
the base of the termination cap.
• One section of the heat shield is attached to the wall
shield. The other is attached to the termination cap
in the same manner.
• The heat shield sections will overlap to match the
wall thickness (depth).
• If the wall thickness does not allow the required 1-1/2
inch heat shield overlap, an extended heat shield
must be used. The extended heat shield will need to
be cut to the thickness of the wall and be attached
to the wall shield.
• The small leg in the shield rests on top of the fl ue to prop-
erly space it from the pipe section (see Figure 27).
If the area above the ceiling is
NOT
an attic, position
and secure the ceiling fi restop on the ceiling side of
the previously cut and framed hole.
CEILING
CEILING FIRESTOP
RAFTER
NAILS (4 REQUIRED)
JOIST
CEILING FIRESTOP
CEILING
NAILS (4 REQUIRED)
EXTERIOR
INTERIOR
Interior
Wall Shield
Inner Flue
Rear Vent
Heat Shield
3.8 cm min.
overlap
Outer Flue
3.8 cm min.
Overlap
Figure 25. Ceiling Firestop (Ceiling Side)
NOTE:
There must be NO INSULATION or other com-
bustibles inside the framed fi restop opening.
NOTE
: Keep insulation away from the fl ue pipe at least
25 mm.