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