Heat & Glo LifeStyle Montana-36, Montana-42 C. Sidewalls/Surrounds, D. 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 3.4. 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
FLUSH FRONT	FRONT 4 in.

14-3/8 in.	A		9-3/4 in.
50 deg.	B
			39 deg.
	12 in.	12 in.
	Cat #	A	B
MONTANA-36 & 36H		36 in.	42 in.
MONTANA-42 & 42H		42 in.	48 in.

Figure 3.4 Sidewalls and Surrounds

D. Frame the Fireplace

Figure 3.5 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. minimum air space clearance to the enclosure.

A

24-1/8 in.

42-3/8 in.

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

42-3/8 in. header height. Use only noncombustible material below the top of the top standoffs.

Cat. #	A
MONTANA-36 & 36H	43 in.
MONTANA-42 & 42H	49 in.

Figure 3.5 Framing the Fireplace

Heat & Glo LifeStyles Collection • Montana • 4039-150 Rev I • 08/06 11