Indoor Water Heater, Additional Considerations

Installing the water heater:

Indoor Water Heater

Caulk

Additional Considerations

Do NOT install vent terminal under any patio or deck..

To help prevent moisture from freezing on walls and under eaves, do not locate vent terminal on the side of a building with

If soffit vent is too close, block off and install new vent at another location..

Inside

Corner Caulk

6’ (1..8 m)

Caulk Zone

Rising moisture will collect under eaves..

6’
(1..8 m)
6’ (1..8 m)
Caulk
zone or to edge of window
etc..,starting within 6’ (1..8 m)..	Caulk

prevailing winter winds..

To help prevent water lines from freezing, do not locate vent terminal on the side of a building with prevailing winter winds..

Do NOT terminate vent directly on brick or masonary surfaces.. A rust resistant sheet metal backing plate (1x1 foot) (30x30 cm) is recommended behind vent.. See figure on left..

	RTV silicone caulk
4’	1 ft.. sq.. (30 x 30 cm) sheet metal plate on
(1..2 m)	brick or masonry surface, recommended..
(1..2 m)

WARNING: Moisture in the flue gas will condense as it leaves the vent terminal. In cold weather this condensate can freeze on the exterior wall, under the eaves and on surrounding objects. Some discoloration to the exterior of the building is to be expected. However, improper location or installation can result in severe damage to the structure or exterior finish of the building

WARNING: For multiple unit installation, a minimum distance between vent terminations must be maintained to prevent recirculation of vent gases. Maintain a center-to-center distance between vent terminations of 19 inches (48 cm) for two unit installation. Maintain a center-to-center distance between vent terminations of 21 inches (53 cm) for three or more unit installation.

Do Not locate vent terminal too close to shrubbery, as flue gases may damage them..

Caulk all cracks, seams and joints within six (6) feet (1..8 m) of vent terminal..

Caulk around wall face plate for weather tight seal..

All painted surfaces should be primed to lessen the chance of physical damage.. Painted surfaces will require maintenance..

Insulate vent pipe of water heaters exposed to cold conditions (attics, crawl spaces, etc..) with inflammable material to help prevent moisture from accumulating in the vent pipe.. The insulation should be rated for the temperature and should not contain substances that corrode the vent pipe..

Do NOT extend exposed vent pipe of indoor water heaters outside of building..

Guard vent against accidental contact with people and pets..