OPEL C Owner's Manual
7
RSF Woodburning Fireplaces
Table 1 Unit Dimensions and Clearances
A
Distance of combustible material from side, back and top standoffs
0"
(0,0 mm)
B
Minimum distance of side wall to the side of the firebox opening
16"
(406 mm)
C
Ceiling clearance: from the base of the fireplace to the
ceiling
sealed enclosure
vented enclosure
7'
6'
(2,13 m)
(1,83 m)
D
Minimum chimney height: minimum total chimney height from fireplace top to
below the chimney rain cap
12' (3,66
m)
E
Maximum chimney height: maximum total chimney height from fireplace top to
below the chimney rain cap
40' (12,19
m)
F
Maximum chimney height supported by the fireplace
18'
(5,47 m)
G
Minimum depth of non-combustible hearth extension: from the front of the
fireplace
18" (457
mm)
H
Minimum width of non-combustible hearth extension: from sides of the door
opening
8" (203
mm)
I
Minimum width of the spark guard
36"
(914 mm)
J
Maximum mantel depth (see Table 2 for other mantel sizes)
12"
(305 mm)
K
Minimum height of a combustible mantel above the top of the door opening: from
the highest point of the firebox opening to below the combustible mantel (see
Table 2 for other installation heights) (refer to the "Installation: Mantel" section
for particulars)
36 ½"
(927 mm)
L
Minimum distance of combustible wall materials above the fireplace facing from
the firebox opening (other than the combustible mantel shelf, see J and K above)
39 ¼"
(997 mm)
Table 2 Various Mantel Depths and Corresponding Installation Heights
Maximum Mantel Depth
Minimum Installation Height
0" to 4"
23"
6" 25
½"
8" 28"
10" 31"
12" 36
½"
No combustible mantel can be installed lower than 23" above the top of the firebox opening. A combustible
mantel cannot be wider than 12".
For combustible mantel depths not mentioned in the list above, you can interpolate the minimum installation
height between the two closest mantel depths. For example:
Mantel depth to be installed:
9 ¼"
It is between 8" and 10" with corresponding installation heights of 28" and 31"
So: ((9.25 – 8) / (10-8) x (31-28))+28 = 29.875 = 29 7/8"
Minimum installation height of a
9 ¼"
mantel:
29 7/8"
above the firebox opening.
If the combustible mantel has a cross-section with variable depth, it has to be installed so that its widest part is
not installed lower than the corresponding minimum installation height while making sure that the lowest point of
the mantel is not installed lower than the minimum installation height corresponding to its depth.
Refer to the "Installation: Mantel" section for particulars.