Heatilator • CI60 • 4013-031 Rev M • 10/06
17
A. Chimney Requirements
Vertical distances are measured from the base of the
¿
replace as shown in Figure 5.2.
To determine the chimney components needed to complete
your particular installation, follow the steps below:
• Determine the total vertical height of the fireplace
installation. This dimension is measured from the base of
the
¿
replace assembly to the point where the smoke exits
the termination cap.
•
Subtract the effective height of the
¿
replace assembly from
the overall height of the
¿
replace installation (measured
from the base of the fireplace to the bottom of the
termination cap).
• Refer to Table 5.1 to determine what components must
be selected to complete the
¿
replace installation.
• Determine the number of ceiling
¿
restops, stabilizers,
roof flashing, etc. required to complete the fireplace
installation.
6 ft (1.8 m) max.
unsupported run
20 ft (6 m) max.
pipe between an
offset & return
Ceiling Firestop
35 ft (10.7 m)
max. straight
unsupported
chimney height
18.5 ft (5.6 m) min. height/single offset-return
24 ft. (7.3 m) min. height/double offset-return
90 ft (27.4 m) max. height
6 ft (1.8 m) max.
unsupported chimney
above roof
71-3/4 in.
(1822 mm)
Effective Height
(bottom of fireplace
to top of starter collar)
Figure 5.2
Chimney Requirements
Table 5.1
• Do NOT connect this fireplace to a chimney flue
servicing another appliance.
• Do NOT connect to any air distribution duct or
system.
CAUTION
Fire Risk
•
Must maintain 2 in. (51 mm) air clearance
to insulation and other combustible
materials.
WARNING
ft
m
• Minimum overall straight height
18
5.5
• Minimum height with offset/return
18.5
5.6
• Maximum height
90
27.4
• Maximum chimney length between an offset and
return
20
6
• Maximum distance between chimney stabilizers
35
10.7
• Double offset/return minimum height
24
7.3
• Maximum unsupported chimney length between the
offset and return
6
1.8
• Maximum straight unsupported chimney height above
the
¿
replace
35
10.7
• Maximum unsupported chimney above roof
6
1.8
HEIGHT OF CHIMNEY COMPONENTS
in.
mm
Chimney Stabilizer
SL4
4-3/4
121
Ceiling Firestops
FS538
0
0
FS540
0
0
Offsets/Returns
SL430
14-1/2
368
Roof Flashing
RF570
0
0
RF571
0
0
Chimney Sections*
SL406
4-3/4
121
SL412
10-3/4
273
SL418
16-3/4
425
SL436
34-3/4
883
SL448
46-3/4
1187
* Dimensions re
À
ect effective height.
Note:
A maximum of two pairs of offsets and returns may
be used.