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Heat & Glo • ST-36TRB-IPI, PIER-36TRB-IPI, LCOR-36TRB-IPI, RCOR-36TRB-IPI • 2128-900 Rev. B • 10/0822
TOP VIEW
3-1/4 in. Min.
2-3/4
in. Min.
1/2 in.
Min.
Unlimited
1 in.
Max.
FIREPLACE
OPENING
Note: Clearance from opening to perpendicular wall.
Figure 5.10 Non-Combustible Zone (PIER and ST)
Figure 5.9 Combustible Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
Figure 5.11 Non-Combustible Zone (LCOR and RCOR)
SHEETROCK
AIR SPACE REQUIRED
3.5 in.
SHEETROCK
AIR SPACE REQUIRED
3.5 in.