Installation, Operation and Maintenance Manual - Page 10

If this replace is installed on a combustible oor, the oor area 16 inches in front of, and 8 inches either side of the

replace opening must be protected by an insulating noncombustible hearth extension. Figure 8

With either type hearth extension minor shifting of the supporting oor or expansion and contraction may eventually

cause a crack to develop between the hearth extension and the face of the replace. To help prevent the crack from

developing, the hearth extension materials must be rmly fastened in place. Wall ties should be screwed to the face

of the replace and imbedded in the mortar joints of brick, stone, or other non-combustible materials. The metal safety

strip packed with the replace must be placed beneath the replace and extended under the hearth extension or into

Model H165

Hearth Extension

Perpendicular

Side Wall

Side Brick Outline

Glass Door

Glass Door

Min. Air

lation board is not required.

If the replace is recessed into the oor or the hearth is elevat-

ed with combustible materials, an MHSC H165 hearth exten-

sion kit or equivalent must be used for additional protection.

Metal Safety

Strip

( Required)