Hearth and Home Technologies EL42, EL36 owner manual Raised Hearth Extension Framing, Model #

Model #		A	B	C	D
EL36	in.	36	52	8	16
	mm	914	1321	203	406
EL42	in.	42	66	12	20
	mm	107	1676	305	508

Raised Hearth Extension Framing

Warning! Risk of Fire. A raised hearth extension built flush with the fireplace opening (Figure 11.3) or less than 4 in. (102 mm) below the fireplace opening requires the fireplace be installed on a non-combustible surface.

The hearth framing must be constructed of non-combus- tible materials (Figure 11.2) and placed on 1/2 in. Micore, or equivalent material (Figure 11.4). When creating the platform, allow for the thickness of the non-combustible finishing materials (Figure 11.5).

4 in. (102 mm)
minimum between
bottom of fireplace opening
and finished surface of hearth extension
C
A
B	C
	D
Figure 11.1 Hearth Extension Dimensions
Continuous, non-	Fireplace
combustible sealant	Opening

1/2 in. Micore Hearth	Tile, stone or other
Extension (or	non-combustible material		4 in.
equivalent insulation)			(102 mm) min.
See Table 11.2.
Floor constructed of wood or		2 in. (51 mm) of the Protective
		Metal Hearth Strip is required
other combustible material		under the front of the fireplace

Figure 11.2 Hearth Extension Construction

IMPORTANT! Hearth extension design must be determined before installation of fireplace.

Non-combustible

Material

Non-combustible

Finishing Material

Non-combustible

Framing Material

1/2 in. Micore
	Protective Metal	Floor
or equivalent
	Hearth Strips
insulation

Figure 11.3 Raised Platform Hearth Extension Detail

Non-combustible

Framing Material1/2 in. Micore or equivalent insulation

Figure 11.4 Raised Platform Hearth Extension-Framing Materials

Heatilator • EL36/EL42 • 4044-132 • Rev AD• 7/12 39