Combustible sheathing such as plywood and particle board may be used to cover the front face of the MAGNUM smoke
dome and be in direct contact with it. If sheathing protrudes in front of the rebox, application of such combustible sheathing must
assure that the sheathing is held a minimum of eight inches (8”) away from each side of the MAGNUM opening and a minimum
of eight inches (8”) above the top of the MAGNUM opening. (Figure 70 & 71) (9” for models 60 & 72)
Do not build a combustible framed wall out in front of the MAGNUM rebox.
If sheathing and framing are to be installed across the front face of the MAGNUM smoke dome, then the framing and sheathing
must be held a minimum of eight inches (8”) above the top of the MAGNUM rebox opening. This means that framing and
sheathing across the smoke dome front must be kept at or above the MAGNUM damper beam.
FIGURE 71
FIGURE 70
Required Clearances (when sheathing protrudes beyond front of rebox)
32
8"
8"FINISHED OPENING
8"
8"8"
MIN. DIM'N.
MIN. DIM'N.
MIN.
MIN.
WOOD (FLAMMABLE)
SHEATHING
MIN.