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G. Sidewalls/Surrounds
• Adjacent combustible sidewalls must be located a
minimum of 24 in. (305 mm) from the fireplace opening.
• Combustible mantel legs, surrounds and stub walls may
be constructed per Figure 12.15.
Figure 12.15 Combustible Mantel Leg or Wall Projections (Acceptable on both sides of opening)
Heatilator • Birmingham BIR42 • 4059-308 Rev J • 1/11
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