24
20 ft (6.10 m) max.
pipe between an
offset & return
Ceiling Firestop
35 ft (10.67 m)
max. straight
unsupported
chimney height
14.5 ft (4.42 m) min. height/single offset-return
20 ft. (6.1 m) min. height/double offset-return
90 ft (27.43 m) max. height
6 ft (1.83 m) max.
unsupported chimney
above roof
39 1/2 in. (1003 mm)
Effective Height
Figure 8.2 Chimney Requirements
Determine the chimney components needed to complete
your particular installation:
• Measure the total vertical height of the fireplace
installation from the base of the fireplace assembly to
the approximate location of the bottom of the termination
cap.
• Subtract the effective height of the fireplace assembly
(see Figure 8.2) from the total vertical height to determine
the overall height of the chimney installation.
• Create a schematic for your application similar to Figure
8.2 showing components required (referring to Table
8.1). Figure 8.1 identifies those components and where
used.
• Install a ceiling firestop whenever the chimney penetrates
a floor/ceiling.
NOTICE:
A maximum of two pairs of offsets and returns
may be used.
CAUTION!
Risk of Fire and/or Asphyxiation! DO
NOT connect this fireplace to a chimney flue servicing
another appliance.
DO NOT connect to any air distribu-
tion duct or system. These actions could cause over-
heating/fire in the chimney flue, or release of exhaust
fumes into the living areas.
ft
m
•
Minimum height width offset/return
16
4.88
•
Maximum height
90
27.43
• Maximum chimney length between an offset
and return
20
6.1
•
Maximum distance between chimney
stabilizers
35
10.67
•
Double offset/return minimum height
24
7.32
•
Maximum unsupported chimney length
between the offset and return
6
1.83
• Maximum unsupported chimney height above
the fireplace
35
10.67
• Minimum overall straight height if fireplace is
freestanding
6.4
3.048
A. Chimney Requirements
When planning your fireplace location, the chimney con-
struction and necessary clearances must be considered.
The fireplace system and chimney components have
been tested to provide flexibility in construction. The fol-
lowing figures are the minimum distances from the base
of the fireplace.
•
Minimum overall straight height is 6 ft 4 in. if the
fireplace is freestanding and a minimum of 10 ft from a
combustible structure.
See Figure 3.2.
• Chimney must extend 2 ft (.6 m) above any portion of the
roof within 10 ft (3 m) of the chimney. Refer to Figure 6.1.
Table 8.1
HEIGHT OF CHIMNEY COMPONENTS
in.
mm
Chimney Stabilizer
SL3
4-3/4
121
Ceiling Firestops
FS338
0
0
FS339
0
0
FS340
0
0
Offsets/Returns
SL315
13-3/8
340
SL330
15-1/2
394
Roof Flashing
RF370
0
0
RF371
0
0
Chimney Sections*
SL306
4-3/4
121
SL312
10-3/4
273
SL318
16-3/4
425
SL324
22-3/4
578
SL336
34-3/4
883
SL348
46-3/4
1187
* Dimensions reflect effective height.
Outdoor Lifestyles by Hearth & Home Technologies Inc.• 4072-137 Rev F • 11/25/13
