Heatiator I80 owner manual C. Sidewalls/Surrounds, D. Frame the Fireplace

C. Sidewalls/Surrounds

Adjacent combustible side walls must be located a minimum of 24 in. (610 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)
23 in.		42 in.	19-3/4 in.
(584 mm)		(1067 mm)
			(502 mm)
50°		50-1/2 in.
			39°
		(1283 mm)
	24 in.	24 in.
	(610 mm)	(610 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) minimum air space clearance to the enclosure.

28-1/2 in.

(724 mm)

¨Figure 3.4 Framing the Fireplace

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

	Use only noncombustible
51-1/2 in.	material below the top of
	the front standoffs.
(1308 mm)

8 in. (203 mm) extra space needed for outside air connection. If outside air duct has no bend, this dimension may be reduced as long as minimum clearances are met.

Heatilator • I80 CAN-US • 4013-203 Rev F • 04/08 11