Hearth and Home Technologies RHW-485H 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 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 defined in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.

			4 in.
14-3/8 in.	Flush		(102 mm)
		Brick
(365 mm)					9-3/4 in.
	Front	Front
				(248 mm)
50 deg.		A
		B	39 deg.
	12 in.	12 in.
	(305 mm)	(305 mm)
		A	B
		Fireplace	Outside
	Model #	Opening	Dimensions
	in.	36	42
	RHW-415	914	1067
	mm
	in.	42	48
	RHW-485	1067	1219
	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 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) min. air clearance to the enclosure.

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

		41-1/2 in. (1055 mm)
41-1/2 in.		header height.
(1055 mm)	A	Use only noncombustible
		material below the top

of the front standoffs.

23 in.

(584 mm)

Figure 3.4 Framing the Fireplace

Model #		A
RHW-415	in.	43
	mm	1092
RHW-485	in.	49
	mm	1245

Heat & Glo • RHW-485 • 33221 Rev O • 08/06 11