Heat & Glo RUTHERFORD-42 Owner's Manual page 43

Non-combustible Sealant
After completing the framing and applying the facing mate-
rials over the framing, a bead of non-combustible sealant
must be used to close off any gaps at the top and sides
between the fi replace and hearth.
Non-combustible Sealant
Figure 12.6 Place Non-combustible Sealant
Flush Hearth Extension Framing
• Fireplace must be recessed 3 3/4 (95.3 mm) below the
fi nished fl oor.
• Refer to Figures 12.7 and 12.8.
Figure 12.7 Flush Hearth Extension
Heat & Glo • RUTHERFORD-42 • 4059-309 Rev G • 11/08
Note: The bottom of the fireplace
opening is 3-3/4 in. (95.3mm) above
the bottom of the fireplace. Finished
hearth must NOT extend above this
level.
Finished
30 in. Min.
Floor
Hearth Extension
1 in. (25.4 mm)
Micore and
Noncombustible Finishing Material
1/2 in. (13 mm)
Durock
Figure 12.8 Flush Hearth Extension Side View
Bottom of
Fireplace Opening
Protective Metal
Hearth Strip
43