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5
Chimney Assembly
A. Chimney Requirements
Vertical distances are measured from the base of the fire-
place.
•
Minimum overall straight height is 10 ft. if the fireplace is
freestanding and a minimum of 10 ft from a combustible
structure.
•
Chimney must extend 2 ft (.6 m) above any portion of the
roof within 10 ft (3 m) of the chimney. 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 fireplace assembly to the point where the smoke exits
the termination cap.
•
Subtract the effective height of the fireplace assembly from
the overall height of the fireplace 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 fireplace installation.
•
Determine the number of ceiling firestops, stabilizers,
roof flashing, etc. required to complete the fireplace
installation.
•
Minimum heightwith 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 unsupported chimney height above
the fireplace
•
Minimum overall straight height if fireplace is
freestanding
* Transition section standard with unit and 1 foot section
required in addtion as minimum
Note: A maximum of two pairs of offsets and returns may
be used.
14
Outdoor Lifestyles by Hearth & Home Technologies Inc. • 4070-300 Rev C • 4/11
ft
m
16
4.88
90
27.43
20
6.1
35
10.67
24
7.32
6
1.83
35
10.67
6.33
1.93
.
WARNING
Fire Risk
•
Must maintain 2 in. (51 mm) air
clearance to insulation and other
combustible materials.
•
Warning: DO NOT PACK REQUIRED
AIR SPACES WITH INSULATION OR
OTHER MATERIALS.
CAUTION
•
Do NOT connect this fireplace to a chimney flue
servicing another appliance.
•
Do NOT connect to any air distribution duct or
system.
Table 5.1
•
HEIGHT OF CHIMNEY
COMPONENTS
US
Chimney Stabilizer
SL11
Ceiling Firestops
FS538
FS540
Offsets/Returns
SL1130
Chimney Sections*
SL1106
SL1112
SL1118
SL1136
SL1148
n/a
* Dimensions reflect effective height.
in.
Canada ONLY
SL4
4-3/4
FS538
0
FS540
0
SL430
14-1/2
SL406
4-3/4
SL412
10-3/4
SL418
16-3/4
SL436
34-3/4
SL448
46-3/4
1187
SLA10
16-3/4
mm
121
0
0
368
121
273
425
883
425
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