23
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 with offset/return
14.5
4.42
•
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
1.95
•
Minimum Straight Height
14.5
4.42
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 following
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 • ODVILLA Wood Owners/Install • 4072-345 Rev A • 08/22