Hearth and Home Technologies ST42A owner manual Sidewalls/Surrounds, Frame the Fireplace

C. Sidewalls/Surrounds

Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the fi replace 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- fi ned in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.

￿
14-3/8 in.	Flush		Brick	4 in.
				(102 mm)
(365 mm)	Front		Front
		42 in.		9-3/4 in.
		(1067 mm)
50 deg.				(248 mm)
		(opening)
				37 deg.
		48 in.
		(1219 mm)
		(framing)
	12 in.		12 in.
	(305 mm)		(305 mm)
Figure 3.3 Sidewalls and Surrounds

D. Frame the Fireplace

Figure 3.4 shows a typical framing (using 2 x 4 lumber) of the fi replace, assuming combustible materials are used. All re- quired clearances to combustibles around the fi replace must be adhered to. See Figure 3.2. Any framing across the top of the fi replace must be above the level of the top standoffs.

￿

You must maintain

2 in. (51 mm) min. air space clearance from the chimney to the enclosure.

27 in.

(686 mm)

12 in. (305 mm) max.

Note: Fireplace Header cannot be positioned until after the fireplace assembly is in place.

48 in.

(1219 mm)

39-1/8 in. (994 mm)

Figure 3.4 Framing the Fireplace

Heatilator • ST42A • 35038 Rev G • 02/05 11