Step 2 Framing The Fireplace - Heat & Glo 36DV Installer's Manual

Step 2. Framing the Fireplace
Fireplace framing can be built before or after the fireplace is
set in place. Framing should be positioned to accommo-
date wall coverings and fireplace facing material. The dia-
gram below shows framing reference dimensions.
Shows center of 10" x 12" vent framing
holes for top and rear venting. The center
of the hole is one (1) inch (25.4mm) above
the center of the horizontal vent pipe.
D
Figure 3. Framing Dimensions
Clearance to Hearth Extension
If you want to use a non-combustible
hearth extension then the clearance
is reduced to 1 inch (25.4mm). See
Figure 5.
CAUTION: MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL COVERING
DETAILS BEFORE FRAMING.
E
A. ......... 51-1/2"
B. ................ 46"
C. ................ 22"
D. ........55-1/8""
E. .......... 54-1/8"
FRONT EDGE
OF ASH LIP
12"
4"
NO COMBUSTIBLES
WOOD OR OTHER
COMBUSTIBLE IN THIS ZONE
FLOOR OR PLATFORM
(4" Minimum to top surface of combustible floor or floor covering).
Figure 4. Clearance to an exposed combustible hearth extension
MARBLE, GRANITE, TILE OR
OTHER NON-COMBUSTIBLE
HEARTH EXTENSION
1"
WOOD OR OTHER COMBUSTIBLE
FLOOR OR PLATFORM
Figure 5. Clearance to covered combustible hearth extension
10
C
A
Framing should be
constructed of 2 X 4
lumber or heavier.
BOTTOM
OF FIREPLACE
FRONT EDGE
OF ASH LIP
12"
BOTTOM OF FIREPLACE
B
1" (BUILT INTO UNIT)
3" MIN.
MAY BE COMBUSTIBLE
MATERIAL