Vertical Penetration Framing - Heat & Glo Crescent II Owner's Manual

C.

Vertical Penetration Framing

WARNING
Fire Hazard
Keep loose materials or
blown insulation from touch-
ing the vent pipe.
• National building codes recommend us-
ing attic shield to keep loose materials/
blown insulation from contacting vent.
• Hearth & Home Technologies requires
the use of an attic shield.
Installing the Firestop Spacer
• Frame an opening 10 inches by 10 inch-
es whenever the vent system pene-
trates a ceiling/floor (see Figure 6.3).
• Frame the area with the same sized lum-
ber as used in ceiling/floor joist.
• When installing a top vent vertical appli-
ance the hole should be directly above
the appliance, unless the flue is offset.
• Do not pack insulation around the vent.
Insulation must be kept away from the
pipe.
Installing Attic Shield
Note: The firestop spacer is not required if
attic shield is used.
• Frame opening for attic shield.
• Attic shield may be installed above or
below ceiling (see Figure 6.4).
• Secure with three fasteners on each
side.
• Fold tabs at top of attic shield in toward
vent pipe. Tabs must keep vent pipe
centered within shield.
• Field construct additional shield height
if insulation is deeper than height of at-
tic shield.
A
B
A
DVP
10 in. 10 in.
PIPE
Figure 6.3
ATTIC SHIELD INSTALLED
BELOW CEILING
Figure 6.4
Heat & Glo • Crescent II • 2083-902 Rev. G • 9/05
B
BEND TABS IN
AROUND PIPE
3 FASTENERS
PER SIDE
Installing the Attic Shield
ATTIC
ABOVE
ATTIC SHIELD INSTALLED
ABOVE CEILING
17