Installing$the$water$heater:
Venting$Through$Closed$Spaces
Follow'local'codes'and'vent'manufacturer’s'installation'instructions.
For'maintenance'and'inspection'purposes
'two'(2)'inspection'access'
panels'large'enough'to'allow'access'for'venting'inspection'
may'be'
required
.'One'(1)'of'these'access'panels'should'be'close'to' where'the'
concentric'vent'pipe'enters'the'ceiling.'The'other'access'panel'should'
be'near'the'vent'termination.
downward slope
1/4" per foot
Ceiling
Vent Pipe
Wall Plates
Board
Inspection
Fire
Stop
Access Panel #1
Inspection
Access
Panel #2
94° Elbow
(optional)
(optional)
12” (min)
(30 cm)
Appliance$Vent$Adapter
Metal'Fab'Inc.,'standard'concentric'vent'pipe'
can'be'installed'into'the'water'heater'collar'
without'an'appliance'vent'adapter.'However,'
other'Rheem'approved'vent'manufacturer'pipe'
cannot'be'installed'without'a''UL'approved'
Category'III'Stainless'Steel'appliance'
concentric'vent'adapter.'
Notice:'To'install'the'appliance'vent'adapter,'
please'follow'the'appliance'vent'adapter'
manufacturer’s'instructions.
Draining$the$Condensate
Provision'should'be'made'to'collect'and'
dispose'of'condensate'from'venting'systems.
When'a'water'heater'is'vented$horizontally,'
the'vent'pipe'can'have'a'DOWNWARD'or'
UPWARD'slope'towards'the'termination.'If'an'
UPWARD'slope'is'used,'always'attach'a'drain'
hose'to'the'drain'fitting'and'plumb'the'hose'to'
a'sanitary'sewer'drain.'
See'Examples'A'and'B'on'pages'13'and'14'
for'DOWNWARD'and'UPWARD'slope'for'
horizontally'vented'water'heaters.'
When'a'water'heater'is'vented$vertically,'an'
UPWARD'slope'must'always'be'used.''See'the'
diagram'on'page'14'showing'UPWARD'slope'
for'vertically'vented'water'heaters.
Always'attach'a'drain'hose'to'the'drain'fitting'
and'plumb'the'hose'to'a'sanitary'sewer'drain.
A'high'temperature'silicone'tubing'suitable'for'
use'with'acidic'condensate'and'appropriate'for'
the'temperature'range'should'be'used.
The'drain'tube'is'fashioned'into'a'“pigtail”'trap'
and'must'be'filled'with'water'to'prevent'flue'
gases'from'emitting'into'the'building'prior'to'
operating'the'appliance.'(see'diagram)
CAUTION:$Condensate$
must$drain$away$from$the$
water$heater$and$should$
not$be$allowed$to$enter$the$
water$heater.
WARNING:$Failure$to$
provide$a$vent$condensate$
drain$close$to$the$appliance$
could$allow$acidic$flue$gas$
condensate$to$enter$into$
appliance$flueways,$causing$
premature$failure$of$the$
water$heater.
CAUTION:$Condensate$
is$known$to$be$acidicK$refer$
to$local,$state$(provincial)$
or$federal$codes$for$proper$
handling$and$discharge$
methods.
10
WARNING:$If$the$
condensate$collector$is$not$
used,$the$drain$fitting$must$
be$capped$to$prevent$
exhaust$gases$and$
condensate$from$entering$
the$building.$The$cap$is$
supplied$on$the$water$
heater.
0XVWEH¿OOHGZLWKZDWHUWRSUHYHQW
gasses'from'backing'into'building
Condensate'Drain'Line'
(to'suitable'drain)
AP15317 (10_09) DV Gas Manual 10 30 09.indd 10 11/9/2009 3:10:25 PM