VENTING INSTALLATION
Continued
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| Listed |
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| Vent Cap |
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| Listed | Listed |
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| Vent Cap | |
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| Vent Cap | |
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| Maintain |
| Maintain |
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| Listed |
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| Maintain | |
| Listed |
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| Clearance |
| Maintain | Listed | |
| Clearance |
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| Support Each |
| Listed | Clearance | |
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| Lateral At |
| Clearance |
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| Least Every | 45 |
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| 60 | Six (6) Feet | 12' Min. |
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| 8' | 6' |
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| 45 | 10' |
12' Min. | Position |
| 45 | Position | 12' Min. | |
| Position | |||||
| Firestop |
| Firestop |
| Firestop |
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| Maintain |
| Maintain |
| Maintain |
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| Listed |
| Listed |
| Listed |
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| Clearance |
| Clearance |
| Clearance |
EXAMPLE 1 | EXAMPLE 2 | EXAMPLE 3 |
Figure 10 - Typical B-Vent Configuration
The flue connection must be made using listed
It is not recommended that this appliance be com- mon vented with an existing gas burning appliance. However, if it becomes necessary to common vent this appliance, the venting system must be sized and configured in accordance with the common venting guides Appendix G of the current National Fuel Gas Code ANSI Z223.1/NFPA 54 and in
Lowest Listed
Discharge Vent Cap
Opening
8 Ft. Min.
Listed Gas
Vent
12
H(Min) Height From Roof
x
Roof Pitch x/12 Listed Clearance
Canada with CAN/CGA B149.
Note: Before connecting this appliance to an existing vent system or a common venting sys- tem consult with your local architect, planner or building official.
WARNING: This appliance must be properly connected to a system and must not be connected to a chimney flue servicing a separate solid fuel burning appliance.
| H (Min.) |
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Roof Pitch | Ft. | m |
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Flat to 6/12 | 1.0 | 0.30 |
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6/12 to 7/12 | 1.25 | 0.38 |
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Over 7/12 to 8/12 | 1.5 | 0.46 |
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Over 8/12 to 9/12 | 2.0 | 0.61 |
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Over 9/12 to 10/12 | 2.5 | 0.76 |
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Over 10/12 to 11/12 | 3.25 | 0.99 |
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Over 11/12 to 12/12 | 4.0 | 1.22 |
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Over 12/12 to 14/12 | 5.0 | 1.52 |
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Over 14/12 to 16/12 | 6.0 | 1.83 |
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Over 16/12 to 18/12 | 7.0 | 2.13 |
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Over 18/12 to 20/12 | 7.5 | 2.27 |
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Over 20/12 to 21/12 | 8.0 | 2.44 |
Figure 11 - B-Vent Terminations
10 | www.desatech.com |
