Radiance Direct Vent/Natural Vent Gas Heater
Parallel Installation: Minimum Clearance
and Flue Centerline, Direct Vent and Natu-
ral Vent
42" (1070mm)
Min. Alcove Width
4" (102mm)
48"
(1220mm) Max. Alcove Depth
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| 6" |
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| 6" |
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ST130 |
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Fig. 3 Parallel installation, minimum back and side clear- ances, and flue centerlines.
Corner Installation: Minimum Clear- ance and Flue Centerline, Direct Vent & Natural Vent
18"
(457mm)
6"
�(150mm)
�
18"
(457mm)
�
�
6"
(150mm)
ST129
Fig. 4 Corner installation, minimum corner clearances and flue centerline.
Wall Centerline from Floor
Direct Vent Only
A
ST131b
A
Effective Minimum
Centerline 57” (1448mm)(Vermont Castings/Majestic Pipe)
55” (1399mm) (Simpson DuraVent Pipe)
Fig. 5 Minimum wall centerline.
Wall and Ceiling Clearances
Direct Vent Only |
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B
C
A 
A: Rear Wall | 4” (102mm) |
B: Min. Clearance | 44” (1118mm)* |
C: Min. Alcove Height | 72” (1830mm)* |
D: Max. Alcove Depth | 48” (1220mm) |
Sidewall Clearance | 6” (150mm) |
*needed for installing DuraVent Minimum Vent Kit #2792 or
CFM Corporation Minimum Vent Kit #7TFSMSK. | ST101b |
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Fig. 6 Dimensions and clearances to ceiling or alcove.
Hearth Requirements
The Radiance Heaters must be installed on rigid floor- ing. When the heater is installed directly on any com- bustible surface other than wood flooring, a metal or wood panel extending the full width and depth of the unit must be used as the hearth. There are no other hearth requirements.
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