Hearth and Home Technologies Everest - Manual (Page 18)

Heat & Glo • Everest • 750-900 Rev. o • 10/08 18
For Vertical Runs - One ceiling fi restop is REQUIRED
at the hole in each ceiling through which the vent
passes.
To install fi restops for vertical runs that pass through
ceilings:
• Position a plumb bob directly over the center of the verti-
cal vent component.
• Mark the ceiling to establish the centerpoint of the
vent.
• Drill a hole or drive a nail through this centerpoint.
• Check the fl oor above for any obstructions, such as wir-
ing or plumbing runs.
• Reposition the fi replace and vent system, if necessary,
to accommodate the ceiling joists and/or obstructions.
• Cut a 10 inch x 10 inch (254 mm x 254 mm) hole through
the ceiling, using the centerpoint previously marked.
• Frame the hole with framing lumber the same size as
the ceiling joists.
Figure 15. Ceiling Firestop (Ceiling Side)
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.
This shows a ceiling installation.
Figure 14. 10” x 10” Hole & New Framing Members
If the area above the ceiling IS an attic, position and secure
the fi restop on top of the previously framed hole.
This shows an attic installation. Keep insulation away from
the vent pipe at least 1 inch (25 mm).
Figure 16. Attic Firestop
JOIST
CEILING FIRESTOP
CEILING
NAILS (4 REQUIRED)
JOIST
CEILING FIRESTOP
CEILING
NAILS (4 REQUIRED)
CEILING
NEW
FRAMING
MEMBERS
EXISTING CEILING
JOISTS
CHIMNEY
HOLE
10" (25.4 cm)
) m c 4 . 5 2 ( ” 0 1
Figure 13. 10” x 12” Hole and Vent Pipe
To install fi restops for horizontal runs that pass through
either interior or exterior walls:
• Cut a 12 inch by 10 inch (305 mm X 254 mm) hole
through the wall. The center of the hole is one (1) inch
(25.4 mm) above the center of the horizontal vent
pipe.
• Position the fi restops on both sides of the hole previously
cut and secure the fi restops with nails or screws.
• The pipe opening of the fi restops MUST be placed
towards the bottom of the fi replace.
NOTE: There must be NO INSULATION or other
combustibles inside the framed fi restop opening.
10" (25.4 cm)
12" (30.5 cm)
INTERIOR
WALL SHIELD
NOTE: There must be NO INSULATION or other
combustibles inside the framed fi restop opening.