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17
Figure 13. Minimum Vertical & Maximum Horizontal
Dimensions of Combustibles above Fireplace
WARNING: WHEN FINISHING THE
FIREPLACE, NEVER OBSTRUCT OR
MODIFY THE AIR INLET/OUTLET GRILLES IN
ANY MANNER.
CAUTION
IF JOINTS BETWEEN THE FINISHED WALLS
AND THE FIREPLACE SURROUND (TOP AND
SIDES) ARE SEALED, A 300°
F. MINIMUM
SEALANT MATERIAL MUST BE USED. THESE
JOINTS ARE NOT REQUIRED TO BE SEALED.
ONLY NON-COMBUSTIBLE MATERIAL (USING
300° F. MINIMUM ADHESIVE, IF NEEDED) CAN
BE APPLIED AS FACING TO THE FIREPLACE
SURROUND. SEE THE DIAGRAM BELOW.
1. Apply non-combus-
tible facing material to
the fireplace sur-
round.
Figure 14. Sealant Material
Hearth Extensions
A hearth extension may be
desirable for aesthetic
reasons. However, ANSI
or CAN/CGA testing
standards do not require
hearth extensions for gas
fireplace appliances.
Step 10
Finishing
The following diagram shows the minimum vertical
and corresponding maximum horizontal dimensions
of fireplace mantels or other combustible projections
above the top front edge of the fireplace. See Figures
2 and 3 for other fireplace clearances.
Only non-combustible
materials may be used
to cover the black
fireplace front.