Chimney And Termination Requirements - Heatilator ICON I100 Installation Manual

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Chimney and Termination Requirements

A. Chimney Requirements
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Table 4.1 Chimney Requirements
Minimum overall straight height
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return
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Maximum height
Maximum chimney length between an
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Maximum distance between chimney
stabilizers
Maximum unsupported chimney
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Maximum unsupported chimney
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Maximum unsupported chimney
above roof
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may be used.
6 ft (1.83 m) max.
unsupported run
20 ft (6.10 m) max.
pipe between an
offset & return
Ceiling Firestop
68-1/8 in.
(1730 mm)
Effective Height
Gas
(bottom of fireplace
Knockout
to top of starter collar)
Figure 4.1 Chimney Requirements
18
20 ft 6.1 m
20.5 ft 6.25 m
24 ft 7.32 m
90 ft 27.43 m
20 ft 6.1 m
35 ft 10.67 m
6 ft 1.83 m
35 ft 10.67 m
6 ft 1.83 m
6 ft (1.83 m) max.
unsupported chimney
above roof
35 ft (10.67 m)
max. straight
unsupported
chimney height
20.5 ft (6.25 m) min. height/single offset-return
24 ft. (7.32 m) min. height/double offset-return
90 ft (27.43 m) max. height
Heatilator • ICON I100 • 4013-263 Installers Manual • Rev S • 11/22
WARNING! Risk of Fire!
air space clearance to insulation and other combustible
materials around the chimney system. Failure to do so may
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NOTICE: You must provide support for the pipe during
construction and check to be sure inadvertent loading has
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any chimney joint.
Table 4.2 Chimney Component Dimensions
HEIGHT OF CHIMNEY COMPONENTS
Chimney Stabilizer
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6/
Chimney Sections*
6/
SL1112
SL1118
6/
6/
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You must maintain 2 in. (51 mm)
in. mm
 121
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