D. Finishing Material
Refer to Sections 11.A. and Sections 11.B. for combus- tible/noncombustible materials. Refer to Figure 11.9 for noncombustible zone.
WARNING! Risk of Fire! You must maintain clearances.
•Use only
•Sheetrock, wood or other combustibles must NOT be used as sheathing or facing in the noncombustible zone.
•DO NOT cover metal fireplace front with combustible materials.
•Install combustible materials only to specified clearances on top front and side edges.
WARNING! Risk of Fire!
•DO NOT obstruct air inlets or outlets.
•DO NOT modify grilles. Modifying or covering grilles could cause temperature rise and fire hazard.
•Finishing materials must not interfere with: air flow through grilles or louvers; operation of louvers or doors; access for service.
•Complete framing and apply facing material (drywall) over framing.
•A bead of
•Large gaps can be bridged with fiberglass rope gasket.
•Only
| These surfaces |
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| material. |
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| sealant. |
Figure 11.9 | Noncombustible Facing |
Finished combustible wall |
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Combustible material |
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| 2 x 4 header, flush with | ||||
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Continuous,
Tile, stone or other
HX3 or HX4 Hearth Ext or equivilent insulation
Metal strips are placed 2 in. (51 mm) under the front of the fireplace and must extend beyond the front and sides of fireplace opening by 2 in. (51 mm)
Floor constructed of wood or other combustible material
Figure 11.10 Decorative Facing
38 | Heatilator • SC60 • 32838 Rev X • 10/08 |