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15Heat & Glo • SL-550 / 750 / 950TV-D • 2053-985 Rev. J • 4/07
A. Pipe Clearances to Combustibles
Vent Clearances and Framing
6
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as
specifi ed.
• Do not pack air space with insulation or other
materials.
• National building codes recommend using attic
shield to keep loose materials/insulation from
contacting vent.
Failure to keep insulation or other materials away from vent
pipe may cause fi re.
Figure 6.1 Pipe Clearances
CLEARANCE
AROUND VERTICAL
SECTIONS
TOP
CLEARANCE
SIDE AND
BOTTOM CLEARANCE
Follow vent pipe manufacturer’s instructions for all clear-
ances around pipe.
C. Vertical Penetration Framing
Use B-vent manufacturer’s fi restops to provide adequate
clearances.
Fire Hazard
Keep loose materials or blown insulation from
touching the vent pipe.
• National building codes recommend using
attic shield to keep loose materials/ blown
insulation from contacting vent.
• Hearth & Home Technologies requires the use
of an attic shield.
WARNING
WARNING