Page 13
REV. 2016-01
DRAWING 14
84
"
(2
13
5
m
m
)
m
in
.
58" (1470 mm) min.
For the chasing depth:
See the table below
Free interior dimensions
of the insulated
exterior chasing
Non combustible
protection
Durok
8" (200 mm)
minimum
8" (203 mm)
minimum
18"
(46
0 m
m)
min
im
um
Non combustible
cement board
1/2" (12 mm)
(Durok)
Durok
18" (460 mm)
minimum
Gypsum
board
1/2" (12 mm)
MANDATORY:
metal studs
Non combustible
floor protection:
(Shall exceed the width of
the door plus 8" (200 mm)
on each side
Free depth of the exterior insulated chasing
(varies according to the exterior wall thinkness)
* The exterior wall inludes
everything from the exterior
finish to the interior finish.
In case of doubt, please
call Don-Bar.
27"
(685 mm)
28"
(710 mm)
29"
(740 mm)
30"
(760 mm)
31"
(790 mm)
32"
(810 mm)
32"
(810 mm)
32"
(810 mm)
7"
(180 mm)
8"
(200 mm)
9"
(230 mm)
10"
(255 mm)
11"
(280 mm)
13"
(330 mm)
12"
(305 mm)
14"
(355 mm)
Exterior wall
thickness (*)
Minimum free
depth
Minimim free
width
Minimum free
height
58"
(1470 mm)
84"
(2135 mm)
Insulated exterior chasing - dimensions
DANGER OF FIRE
Never fill (stuff) with insulation
the empty spaces around the
insulated case and around the
insert. Moreover, non-mineral
insulation (foams, cellulose,
cotton, etc.) needs a clearance
from the fireplace and the
insulated case of 12" minimum
(300 mm) .
