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Heat & Glo • GEM42 • 371-900 Rev. N • 2/05
Framing should be
constructed of 2 X 4
lumber or heavier.
A. ................. 47-1/2”
B. ................. 47-3/4”
C. ................. 17-1/2”
D. ........................ 65”
E**. .......... 22-15/16”
F.* ................ 55-1/2”
Figure 3. Framing Dimensions
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.
CAUTION: MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL COVERING
DETAILS BEFORE FRAMING.
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.
F
A
C
B
1/2” CLEARANCE TO
FRAMING MEMBER
1/2” CLEARANCE
FRAMING
MEMBER
1/2” CLEARANCE
FROM BOTH SIDES
OF FIREPLACE
TO COMBUSTIBLE
1/2” CLEARANCE FROM BACK OF FIREPLACE TO COMBUSTIBLE
Note: Remove cover
plate (if present).
D
E
H
E
A
T
-
O
U
T
*Studs labeled “F” are necessary if installing the optional
Arched Gem Stone Kits (BKMS6052, BEMS6052, GRS6052).
**Heat-Out framing is 12 inches wide by 10 inches tall, opposite
of vent framing. Center of Heat-Out framing is 1-1/16 inch
LOWER than the center of the Heat-Out pipe.