Installing the water heater.
Vertical Vent Termination Location
Small (6” min) (15 cm) section of vent
Elbow
The location of the vent terminal depends on the following minimum clearances and considerations (see illustration):
Minimum twelve (12) inches (30 cm) above roof.
Minimum twelve (12) inches (30 cm) above anticipated snow level.
Min. 12" (30 cm) Above Roof
Min. 12" (30 cm) Above Anticipated Snow Level.
Max. 24" (60 cm) Above Roof (Without Additional Support)
Vent Pipe
Through Roof
Termination Elbow w/ Protective Screen
Maximum
Four (4) feet (1 m) from any gable, dormer or other roof structure with building interior access (i.e., vent, window, etc.).
Ten (10) feet (3 m) from any forced air inlet to the building. Any fresh or
Vertical Vent Installation
Once the vent terminal location has been determined, make a hole through the roof and interior ceiling to accommodate the vent pipe. Complete the vent pipe installation to the water heater's vent connector fitting on the water heater vent collar outlet. Support vertical or horizontal runs as previously mentioned. If required, use silicone sealant at the point the vent connector joins the water heater.
Install adequate flashing where the vent pipe passes through the roof. Determine the vent terminal height and install the vent pipe accordingly. Refer to the illustration above for proper vent terminal height. Connect vent elbow on to vertical pipe through roof. Connect short piece of vent pipe (approximately 6" long (15 cm)) to elbow, and the terminal elbow with the protective screen.
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| Rain Cap |
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| Collar |
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| Collar |
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| Adjustable | |
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| Adjustable |
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| Roof Flashing | |
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| Roof Flashing |
| Roof Jack |
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Roof Jack |
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| Support | Firestop | |||
| Support | Firestop |
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| Clamp |
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| Clamp |
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Chase Requires |
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| Chase Requires |
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| 6” (15 cm) Clearance |
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6” (15 cm) Clearance |
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| to Combustibles |
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to Combustibles |
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1/4” per foot upward slope |
| 1/4” per foot upward slope |
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3” (8 cm) Clearance |
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| 3” (8 cm) Clearance |
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| Firestop |
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| Firestop |
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| 3’ |
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3’ |
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(91 cm) |
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Max | Condensate |
| Trap | Hanger | ||
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| Trap |
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| To Drain. Dispose of | |
| To Drain. Dispose of |
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Vent | condensate in accordance |
| Vent | to local codes | ||
Adapter | to local codes |
| Adapter |
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| Alternate |
18 | Standard Vertical Vent Termination | Vertical Vent Termination with Rain Cap |
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