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125183-01B
6
FIREPLACE INSTALLATION
Continued
12
1
/
4
" Ref.
6"
Ref.
12" Min.
9" Min.
1
1
/
2
" Max.
3" Nom.
33°
Combustible
Material
Safe
Zone for
Projection of
Combustible
Materials
Fireplace Opening
Upper
Section of
Fireplace
Figure 4 - Mantel Clearances to
Combustible Material (with Louver)
OPTIONAL OUTSIDE AIR KIT
(MODEL AK4/AK4F)
Installation of an outside air kit should be
performed during rough framing of fireplace
due to the nature of it's location. Outside com
-
bustion air is accessed through a vented crawl
space (AK4F) or through a sidewall (AK4).
See Figure 23 on page 15 for instruction of
operating air kit.
CAUTION: Combustion air
inlet ducts shall not terminate
in attic space.
VENTING INSTALLATION
MANTELS
A mantel may be installed if desired (see
Figures 4 and 5). Woodwork such as wood
trims, mantels or any other combustible
material projecting from front face, must not
be placed within 9" of fireplace opening and
within 6" of top louver opening. Combustible
materials above 9" and projecting more than
1
1
/
2
" from fireplace must not be placed less
than 12" from top opening of fireplace (NFPA
STD 211, Sec. 7-3.3.3).
Figure 5 - Mantel Clearances to
Combustible Material (without Louver)
12
1
/
4
" Ref.
1
1
/
2
"
Max.
Upper Section
of Circulating
Fireplace
6"
Ref.
6"
Min.
33°
3" Nom.
*Note
:
Drawing
Not To Scale
Safe Zone For
Projection of
Combustible
Materials
Combustible
Material
12"
Min.
9"
Min.
Fireplace Opening
Top of
Louvered
Opening
The maximum height for the
air vent can not exceed 3 feet
below the flue gas outlet of the
termination.
CHIMNEY PIPE
FMI PRODUCTS, LLC chimney system
consists of 12", 18", 24", 36" and 48" snap-
lock, double-wall pipe segments, planned
for maximum adaptability to individual site
requirements. Actual lengths gained after fit
-
ting overlaps must be taken into consideration
(lineal gain) and are given in lineal gain chart
(see Figure 7, page 7). Lineal gain is actual
measurable length of a part after two or more
parts are connected. For Canada, use chim
-
ney parts designated "HT".
