14
Installing the water heater.
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.build.ing.
with.prevailing.winter.winds .
..When.terminating.the.vent.pipe.through.brick.or.masonry.
surfaces,.a.rust-resistant.sheet.metal.backing.plate..
behind.the.vent.termination.is.recommended ..
(See.illustration .)
..Do.Not.locate.vent.terminal.too.close.to.shrubbery,.as.flue.
gasses.may.damage.them .
..Caulk.all.cracks,.seams.and.joints.within.six.(6).feet.of.vent.
terminal .
..All.painted.surfaces.should.be.primed.to.lessen.the.chance.of.
physical.damage ..Painted.surfaces.will.require.maintenance .
..Insulate.vent.pipe.exposed.to.cold.conditions.(attics,.crawl.
spaces,.etc .).with.inflammable.material.to.help.prevent.
moisture.from.accumulating.in.vent.pipe .
..
Do.Not.extend.exposed.vent.pipe.outside.of.building .
If soffit vent is too
close, block off and
install new vent at
another location
Inside
corner
Caulk
Caulk
Caulk
6' (1.83 m)
caulk
zone or to edge of
window etc., starting
within 6'
Rising moisture will
collect under eaves
4'
6' caulk zone
2 ft. sq. sheet metal plate on
brick or masonary surface is recomended.
6'
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
Horizontal Vent Terminal Location
The.location.of.the.vent.terminal.depends.on.the.following.
minimum.clearances.and.considerations.(see.illustration):
..Vent.Terminal.must.be.at.least.twelve.(12).inches.above.
grade.level.and.above.normal..
snow.levels .
..Vent.Terminal.must.be.at.least.four.(4).feet.below,.or.four.
(4).feet.horizontally.from.any.door,.operable.window,.soffit,.
under.eave.vent.or.gravity.air.inlet.to.the.building.or.other.
appliances,.or.from.gas.or.electric.meters ..Do.not.locate.
vent.above.walkways,.doors,..windows,.air.inlets,.gas.or.
electric.meters.or.other.equipment .
..Vent.Terminal.must.be.at.least.three.(3).feet.above.any.
forced.air.inlet.located.within.ten.(10).feet ..Any.fresh.or.
make-up.air.inlet.such.as.for.a.dryer.or.furnace.area.is.
considered.to.be.a.forced.air.inlet .
..Vent.Terminal.must.be.at.least.eighteen.(18).inches.from.an.
inside.corner.formed.by.two.exterior.walls .
4'
4'
Soffit vents
18"
4'
4'
4'
18"
Electric
meter
Inside
corner
3' above
if within 10'
Fresh
air
intake
12" (Above grade/snow level)
window or vent
NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American
National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards.
2.ft ..sq ..sheet.metal.plate.on.brick.or.
masonry.surface.is.recommended .
