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C. Sidewalls/Surrounds
•
Locate adjacent combustible sidewalls a minimum of 24 in. (610 mm) from fireplace opening.
•
Mantle leg, surround, stub wall, whether combustible or non-combustible, may be constructed as shown in Figure 6.3.
22 3/8 in.
[568 mm]
Figure 6.3
Mantel Leg, Surround or Wall Projection (acceptable on both sides of opening)
D. Frame the Fireplace
Figure 6.4 shows typical framing using combustible materials (2x4 lumber shown).
•
Observe all required air space clearances to combustible materials as shown in Figure 6.2.
2 in. (51 mm)
min. air space
clearance
from chimney.
C
B
Figure 6.4
Framing the Fireplace
20
Note: Grid depicts 1 inch squares.
FLUSH
FRONT
18 1/2 in.
[470 mm]
24 in.
[610 mm]
D
A
D
Model #
RUTHERFORD-42
* If interior of chase will be drywalled, add the thickness to this meaurement.
** Adjust header height for raised floor under fireplace.
Heat & Glo • RUTHERFORD-42 • 4059-309 Rev L • 5/11
42 in.
[1067 mm]
52-7/8 in.
(1343 mm)
Framing must be extended straight
up, all the way to the ceiling.
The fireplace header cannot be positioned until
after the fireplace assembly is in place.
Header MUST NOT be notched!
D = extra space needed for outside air connection.
If outside air duct has no bend, this dimension may be
reduced as long as minimum clearances are met.
A
B *
in.
53 7/8
28 3/8
mm
1368
721
4 in.
BRICK
[102 mm]
FRONT
19 3/4 in.
[500 mm]
24 in.
[610 mm]
C **
D
74 1/2
12
1892
305
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