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.)
MANTEL
A masonry or other non-combustible mantel may
be placed directly above the top louvers. If a wood
or other combustible mantel is desired, then it
must be at least 28” (54" from the base of the fire-
place) above the top of the door opening (see
Figure 14).
HEARTH EXTENSION
The area immediately in front of the fireplace must
be protected 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 thick-
ness 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 mate-
rial 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 exten-
sion. 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.
Page 15
OPEL AP
11” 11”
11¼”
24” to standoff
37” to standoff
1 ½”
Opening for
central heat
or gravity vent
ducting
25”
39 ¼”
1 ¾”
15 ¼”
5 ¾”
36”
18 7/8”
29 ½”
4 1/8”
48” to
top standoff
½”
1 ¼”
Figure 13: Unit dimensions
Opening for gravity vent only
8” max.
Mantel
12” min.
from side
wall to
edge of
louvers
46 ¾”
54”
23”
38 ½”
16”
Insulation ¾”
Non-combustible
hearth
Figure 12: Clearance to combustibles
NOTE: Metal sheet
and Durock© cement
board (in USA only).
