Hearth and Home Technologies ST-550TM-IPI owner manual Non-Combustible Mantel, Fireplace Opening

D. Mantel and Wall Projections and Non Combustible Zone

WARNING! Risk of Fire! Comply with all minimum clear- ances as specified. Framing or finishing material closer than the minimums listed must be constructed entirely of noncom- bustible materials (i.e., steel studs, concrete board, etc).

Combustible Mantel

TOP VIEW			1/2 in.
				Min.
FIREPLACE	3-1/4 in.
OPENING
	Min.	Unlimited

Note: All measurements in inches.

4

3

NON-COMBUSTIBLE

MATERIAL

6 IN.

							CEILING
MAX.
12
11
10
9									32
8
7
6
5
								21
							20
						19
					18					MIN.
				17
			16
			15
		14
	13
12

Note: Clearance from opening to perpendicular wall.

Figure 5.5 Combustible Mantel Leg or Wall Projections (Acceptable on both sides of opening)

23-3/4 in.

1/2 INSHEETROCK. WALL SHEATHING

NON COMBUSTIBLE MATERIAL

TOP OF HOOD OR FIREPLACE OPENING

Figure 5.3 Minimum Vertical and Maximum Horizontal Dimensions of Combustibles

Non-Combustible Mantel

Note: All measurements in inches.	MAX.			CEILING
				18
			12
NON-COMBUSTIBLE			11
			10	32
MATERIAL
			9
6 IN.					MIN.
		8		15
	7			9
				8
	6		6	7
	5		5
		3	4
4	2
1	1

TOP OF HOOD OR FIREPLACE OPENING

Figure 5.4 Minimum Vertical and Maximum Horizontal

Dimensions of Non-Combustibles

6 INCHES

AIR SPACE REQUIRED

Figure 5.6 Non-Combustible Zone

20 Heat & Glo • ST-550TM-IPI • 2142-900 Rev. B • 11/08