Ruud AP13370-2 Vertical Vent Termination, Horizontal Vent Installation, Draining the Condensate

Installing the water heater.

Insert 1/2" Mesh Protective Screen Inside

Terminal Elbow

Short Piece of Vent Pipe

Min. 12" (30,5cm)5	Vent Pipe
Above Roof
	Through Roof
Min. 12" (30,5cm) Above
Anticipated Snow Level4

Max. 24" (61cm) Above Elbows

Roof (Without Additional

Support)

4Not applicable for Canada Installations.

Vertical Vent Termination

Minimum twelve (12) inches (30,5 cm)5 above roof.

Minimum twelve (12) inches (30,5 cm)6 above anticipated snow level.

Maximum twenty-four (24) inches (61cm)above roof level without additional support for vent. Four (4) feet (1.2m) from any gable, dormer or other roof structure with building interior access (i.e., vent, window, etc.).

Ten (10) feet (3,05m)7 from any forced air inlet to the building. Any fresh or make-up air inlet such as a dryer or furnace area is considered to be a forced air inlet.

5For installations in Canada 18” (45,7 cm).

6Not applicable for installations in Canada.

7For installations in Canada 6´ (1,8 m).

NOTICE: Canadian vent termination/location must follow CSA B149 requirements and may vary from above.

Horizontal Vent Installation

Mortar or

Silicone Caulk

Vent Pipe

From

Water Heater

Pipe Coupling

Recommended 2' x 2'

Sheet Metal Shield

on Brick or Masonry Walls

Vent Terminal with

1/2" Mesh Protective Screen Inside

Outside of	12” min
	(30,5 cm)
Building
	above
Wall
	grade

Once the vent terminal location has been determined, make a hole through the exterior wall to accommodate the 3” or 4” vent pipe. Vent pipe must exit exterior wall only.

Insert a small length of 3” or 4” vent pipe through the wall and connect the coupling as shown.

Place the ½” mesh metal screen inside the terminal fitting and connect it as shown to the vent pipe on the exterior of the building.

Seal any opening around the vent pipe or fittings with mortar or silicone caulk as shown.

Complete the rest of the vent pipe installation to the water heater’s vent connector fitting on the blower outlet. If necessary support horizontal run as previously mentioned.

Use silicone sealant at the point the vent connector joins the blower assembly.

Draining the Condensate

In certain conditions, installations in unconditioned space or having long horizontal or vertical runs may accumulate condensate.

In order to prevent condensate from draining back into the blower, we recommend a condensate tee and drain to be installed in a horizontal vent section as close as practical to the blower vent connection.

Condensate is known to be acidic; refer to local, state (provincial) or federal codes for proper handling methods.

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