C. Sidewalls/Surrounds
Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the fireplace opening. See Figure 3.3. If you are using a decorative surround constructed of combustible material, it must be located within the shaded area de- fined in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.
¨
| BRICK | 4 in. | |
FLUSH FRONT | FRONT | (102 mm) | |
|
| ||
36 in. | |||
(603 mm) | |||
(914 mm) | |||
| (502 mm) | ||
50° | (opening) | ||
| |||
| 39° | ||
| |||
|
| ||
| (1156 mm) |
| |
| (framing) |
| |
12 in. | 12 in. |
| |
(305 mm) | (305 mm) |
|
Figure 3.3 Sidewalls and Surrounds
Note: The frame of the AED door overlaps the front of the fireplace beyond the opening by 3/4 in. (19 mm) on each side and
D. Frame the Fireplace
Figure 3.4 shows a typical framing (using 2 x 4 lumber) of the fireplace, assuming combustible materials are used. All re- quired clearances to combustibles around the fireplace must be adhered to. See Figure 3.2. Any framing across the top of the fireplace must be above the level of the top standoffs.
2 in. (51 mm) minimum air space clearance to the enclosure.
|
|
28 in. | (1156 mm) |
| |
(711 mm) |
|
| |
| (1264 mm) |
Note: Fireplace header cannot be positioned until the fireplace assembly is in place.
49-3/4 in. (1264 mm) header height. Use only noncombustible material below the top of the front standoffs.
Figure 3.4 Framing the Fireplace
Heat & Glo • | 11 |