Astria.us.com
901046-00NC
6
FIREPLACE INSTALLATION
Continued
Figure 3 - Hearth Extension
NO
WARNING: Hearth extension is to be installed
only as shown in Figure 3.
Figure 4 - Mantel Clearances to Combustible Material
8"
(204 mm)
1"
(26 mm)
Min. 12" (305 mm) from
Perpendicular Side Wall
33°
5
/
8
" (16 mm) Max.
Top View of Fireplace
FIREBOX
SAFE ZONE
Figure 5 - Side Mantel Clearance
MANTELS
A mantel may be installed if desired (see Figure 4). Woodwork such
as wood trims, mantels or any other combustible material projecting
from front face must not be placed within 12" of fireplace opening
(and within 9" of top louver opening). Combustible materials above
12" and projecting more than 1
1
/
2
" from fireplace must not be placed
less than 12" from top opening of fireplace (NFPA 211, Section -
Clearance from Combustible Material).
Mantels or any other combustible material may come up to side edge
of black metal face of fireplace if projection from front face falls within
limits shown in Figure 5.
33°
12
1
/
4
" (312 mm) Ref.
1
1
/
2
"
(39 mm)
Max.
6" (153 mm)
Ref.
9"
(229 mm)
Min.
12"
(305 mm)
Min.
15"
(381 mm)
Min.
3" (77 mm)
Nom.
Combustible
Material
Safe Zone For
Projection of
Combustible
Materials
Upper Section
of Circulating
Fireplace
Top of
Louvered
Opening
Fireplace Opening
Non Combustible
Materials Below
Top Spacer
*Note:
Drawing Not to Scale
Fireplace Front
Raised Hearth
Seal Gap
Seal Gap
Seal Gap
Seal Gap
Fireplace Front
Fireplace Front
Ember Protector
Ember Protector
Fireplace Front Elevated
Fireplace Front Elevated
Do Not Block Louver
Ember Protector
Ember Protector
Ember Protector
Hearth
Extension
Hearth
Extension
Hearth Extension, Circulating Modes
Hearth Extension, Noncirculating Models
