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 diagram at left):
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 (1.2 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
Notice: Only Rheem |
| A fire stop plate should be installed at every | Install adequate flashing where the vent pipe | |||||||||||||||||||||||||||||||
| penetration of a floor or ceiling if the vent is | passes through the roof. Determine the vent | ||||||||||||||||||||||||||||||||
approved termination |
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| not running in a | terminal height and install the vent pipe | ||||||||||||||||||||||||||||||||
and parts should be used |
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| recommended air space clearance to |
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| accordingly. Refer to the diagram above for | ||||||||||||||||||||||||||||
during installation. |
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| combustible materials and building insulation. | proper vent terminal height. Connect vent | ||||||||||||||||||||||||||||
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Notice: Follow vent |
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| Once the vent terminal location has been | elbow onto vertical pipe through roof. | |||||||||||||||||||||||||||
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| Connect short piece of vent pipe | |||||||||||||||||||||||||||||
manufacturer’s installation | determined, make a hole through the roof and | |||||||||||||||||||||||||||||||||
(approximately 6” long [15 cm]) to | ||||||||||||||||||||||||||||||||||
instructions and their |
| interior ceiling to accommodate the vent pipe. | ||||||||||||||||||||||||||||||||
| elbow, and the terminal elbow with the | |||||||||||||||||||||||||||||||||
recommended clearances to | Complete the vent pipe installation to the | |||||||||||||||||||||||||||||||||
protective screen. |
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combustibles as required. | water heater’s vent connector fitting on the |
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| water heater vent collar outlet. Support |
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| The vent roof system must terminate at least | |||||||||||||||
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| vertical or horizontal runs as previously | 1 foot (30 cm) above the roof line and at least | |||||||||||||||||||
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| mentioned. If required, use silicone sealant | 2 feet (61 cm) higher than any portion of the | |||||||||||||||||||
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| at the point the vent connector joins the |
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| building within 10 feet (3 m). | |||||||||||||||
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| water heater. |
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| Install supports every 5 feet (1.5 m) vertically | |||||
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| along the vent pipe route. Vertical supports | ||||
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| are required after every transition to vertical | ||||
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| and are required after | |
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| Storm |
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| Rain Cap | every offset elbow. | |||||
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| Storm |
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| When the vent is free- | ||||||||
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| Collar |
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| Collar |
| Adjustable | ||||||||||
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| Adjustable |
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| standing and penetrates | ||||||||
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| Roof | |||||
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| Roof Flashing |
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| Flashing | a roof/ceiling, another | |||
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| Vent Pipe |
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| Vent Pipe |
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| means of support must | |||||||
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| Support |
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| Support |
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| Firestop |
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| Firestop | be used at a second | |||||||||||||
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| Clamp |
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| Clamp |
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| location. | ||||||||||
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| Chase Requires |
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| Chase Requires |
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| Follow the vent | ||||||||||||
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| 6" (15 cm) Clearance |
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| 6" (15 cm) Clearance |
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| manufacturer’s | ||||||||||||||||||||
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| to Combustibles |
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| to Combustibles |
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| recommended | ||||||||||||||
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| installation instructions | |
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| 1/4" per foot upward slope |
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| 1/4" per foot upward slope |
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| provided with the vent | ||||||||||||||||||||||
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| purchased from the | |
3" (8 cm) Clearance |
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| manufacturer. | |||||||
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| Firestop |
| 3" (8 cm) Clearance |
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| Firestop |
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2' |
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| Support |
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| Support |
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(61 cm) |
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| (61 cm) |
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| Hanger |
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| Hanger |
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Max |
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| Condensate |
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| Max |
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| Condensate |
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| Trap |
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| Trap |
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| Vent |
| To Drain. Dispose of |
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| Vent | To Drain. Dispose of |
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| condensate in accordance |
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| condensate in accordance |
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| Adapter | with local codes |
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| Adapter |
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| to local codes |
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Standard Vertical Vent Termination |
| Alternate Vertical Vent Termination |
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with Rain Cap
15