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OPEL AP
2 ft
min.
10 ft.
Flashing*
12” min.
2” min. to
combustibles
Wall
support
Radiation shield
and offset, roof
or wall support
Insulated firestop in
angle(30° or 45°)
Opel AP
Figure 11: Offset chimney through a wall
In USA:
Use vented flashing
In CANADA:
Use Roof Radiation Shield (ERRS)
and a regular flashing
SPARK GUARD
Install a 5" piece of sheet metal centered under the joint
between the fireplace and the hearth extension. This will
make certain that sparks cannot lodge in the crack and
start a fire. If you are preparing a raised installation, then a
“Z” shaped spark guard must be installed. The height of the
Z-shaped spark guard must equal the distance between
the floor and the base of the unit. The minimum depth the
spark guard must extend beneath the Opel AP is 2 1/2
inches. The spark guard must run the full length of the fire-
place.
(Z-SHAPED GUARD NOT SUPPLIED)
Z-shaped spark guard for raised
installation must be custom supplied
by installer (minimum 26 gauge
steel)
Non-combustible
flooring
Figure 10: Z-shaped spark guard
Raised platform
Opel AP
MANTEL
A masonry or other non-combustible mantel may be placed
directly above the top louvers. If a wood or other com-
bustible mantel is desired, then it must be at least 28” (54"
from the base of the fireplace) above the top of the door
opening (see Figure 14).
HEARTH EXTENSION
The area immediately in front of the fireplace must be pro-
tected by a non-combustible material such as brick, tile,
stone, or slate. The protection must extend at least 16" in
front and 8" on both sides of the fireplace opening. There
is no minimum thickness required for the hearth extension.
BENEATH HEARTH EXTENSION
Installation required in the USA only.
The Opel AP must use a metal sheet and 1/2” Durock©
cement board beneath the hearth extension - unless it is
raised at least 4 inches above the base of the hearth. The
metal sheet and Durock© board must have the same
dimension as the hearth extension, namely, 16” wide and
38 1/2” long.
If the fireplace is raised 4” or more, the area in front of the
fireplace just needs to be covered with a non-combustible
material such as metal, brick, stone or slate, it does not
require the Durock© board. There is no minimum thickness
required for this non-combustible hearth extension. The 5”
wide spark guard must be installed underneath either the
hearth extension or the Durock© board.
NOTE: if the Opel AP is installed on a concrete floor, the
Durock© board and spark guard are not required.
