3-00
11 33147A
Figure 7
Sidewalls/Surrounds
E. CHIMNEY REQUIREMENTS
When planning your fireplace location, the chimney construction and necessary clearances must be considered.
The fireplace system and chimney components have been tested to provide the following flexibility in construc-
tion.The following figures are the minimum distances from the base of the unit.
Minimum overall straight height
14.5 ft.
Minimum height with Offset/Return
16 ft.
Maximum height
90 ft.
Maximum chimney length between an Offset/Return
10 ft.
Maximum distance between Chimney Stabilizers
35 ft.
Double Offset/Return minimum height
20 ft.
Maximum unsupported chimney length between Offset/Return
6 ft.
Maximum straight unsupported chimney height above firebox
35 ft.
To bypass any overhead obstructions, the chimney
may be offset using a 15° offset/return (SL315) or a
30° offset/return (SL330). Perform the following steps
to determine the correct chimney component combi-
nation for your particular installation.
An offset and return may be attached together or a
chimney section(s) may be used between an offset
and return. However, the distance between two
elbows must never exceed 10 feet in total length.
a.
Measure how far the chimney needs to be shifted
to enable it to avoid the overhead obstacle. See
Figure 8, dimension “A”.
Figure 8
Chimney Offset/Return
4. SIDEWALLS/SURROUNDS
5. MANTEL
1. USING OFFSETS AND RETURNS.
RHW-44 WOODBURNING FIREPLACE
A combustible mantel may be positioned no lower than 12” above the top of the firebox opening. The com-
bustible mantel may have a maximum depth of 12”. Combustible trim materials, projecting no more than 1-1/2”
from the face of the fireplace, can be placed no closer than 6” from the top and side of the firebox opening. See
the shaded areas on each side of the firebox, as defined in Figure 7. Combustible trim must not cover the black
metal surfaces of the fireplace. This mantel clearance is in accordance with Section 7-3.3.3 of ANSI/NFPA 211.
Adjacent combustible side walls must be located a minimum of 20" from the fireplace opening. See Figure 7. If
you are using a decorative surround constructed of combustible material, it must be located within the shaded
area defined in Figure 7. Short stub walls are also acceptable if they are contained within the shaded area.