E. Combustible Mantel

See Figure 11.4.

A combustible mantel may be positioned no lower than 12 in. (305 mm) above the top of the fireplace opening.

A combustible mantel may have a maximum depth of 12 in. (305 mm).

Combustible trim and materials cannot be placed within 6 in. (152 mm) of the fireplace opening (top or sides).

Combustible materials projecting more than 1-1/2 in. (38 mm) shall not be placed within 12 in. (305 mm) from the top of the fireplace opening.

Combustible trim must not cover the metal surfaces of the fireplace.

Mantel clearance is in accordance with Section 7-3.3.3of ANSI/NFPA211.

 

12 in. (305 mm)

 

 

 

 

max.

 

1-1/2 in. (38 mm) max.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Header

Mantel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standoff

12 in. (305 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

min.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top of

Fireplace

Opening

6 in. (152 mm) min.

Figure 11.4 Clearances to Mantels or other Combustibles above Fireplace

F. Sidewalls/Surrounds

Adjacent combustible sidewalls must be located a minimum of 12 in. (305 mm) from the fireplace opening.

Combustible or non-combustible mantel legs, surrounds and stub walls may be constructed per Figure 11.5.

4 in.

[102 mm]

11.92in. [303 mm]

FLUSH

FRONT

50°

angle

 

12in.

[305 mm]

36 in.

[914 mm]

(fireplace opening)

40 in.

[1016 mm]

36 in.

39°

 

[914 mm]

angle

 

(fireplace opening

 

 

 

40 in.

[1016 mm]

12 in.

[305 mm]

9 3/4 in.

[248 mm]

BRICK

FRONT

Figure 11.5 Mantel Leg or Wall Projections (acceptable on both sides of opening)

Heat & Glo • BAY-40, PIER-40 • 34977 • Rev W • 11/08

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Hearth and Home Technologies PIER-40, BAY-40 owner manual Combustible Mantel, Flush Front

PIER-40, BAY-40 specifications

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