Heat & Glo T-HVBI-AUB Owner's Manual page 20

If the area above the ceiling is NOT an attic, position
and secure the ceiling firestop on the ceiling side of
the previously cut and framed hole.
CEILING
NAILS (4 REQUIRED)
Figure 27. Ceiling Firestop (Ceiling Side)
If the area above the ceiling IS an attic, position and
secure the firestop on top of the previously framed
hole.
NOTE: Keep insulation away from the flue pipe at least
1 in. (25 mm).
NOTE: There must be NO INSULATION or other com-
bustibles inside the framed firestop opening.
CEILING
CEILING FIRESTOP
Figure 28. Attic Firestop
JOIST
CEILING FIRESTOP
NAILS (4 REQUIRED)
RAFTER
Heat & Glo • ST-HVBI-AUB • 2082-980 Rev. R • 9/15
F. Flue Termination
For Horizontal Terminations - To attach and secure
the termination to the last section of horizontal flue:
• The rear flue heat shield MUST be placed one inch
above the top of the flue 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
in. (38 mm) 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 flue to
properly space it from the pipe section (see Figure 29).
Interior
Wall Shield
Outer Flue
Inner Flue
INTERIOR
Figure 29. Flueing through the Wall
• The termination kit should pass through the wall
firestops from the exterior of the building.
Rear Vent
Heat Shield
1-1/2 in.
(38 mm min.)
overlap
1-12 in.
38 cm min.
Overlap
EXTERIOR
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