Why tank less
gas wate r heaters
by Rhee m?
CONTINUOUSHOT WATER…
when you need it. It’s that simple.
The popularity of oversizetubs isgrowing, and
so is the demandfor largevolumes oflow-cost
hot water. The Rheem Tankless provides a
compact solution for acontinuous supplyof
energy-efficient hot water that won’t run out.
ENERGY-EFFICIENT DESIGN…
low-cost operation.
Why keep 40-50 gallonsof waterhot whenyou
don’t need it? It’s expensive to continue to heat
and re-heat water whenyou’re nothome ornot
using it. Rheem’s tankless design offers
convenience without the highcost ofkeeping
water hot.
COMPACTSIZE…
good things do come in small packages.
RheemTankless is about one third the sizeof a
conventionalwater heater.Sophisticated
technologyhas reduced the sizeand increased
the featuresand benefits. A digitaldisplay makes
settinga precisewater temperature,or monitoring
the unit’sstatus, a snap! Its compact sizewill leave
room fora watersoftener or extra storage.
PRECISETEMPERATURECONTROL
Many user and installer-friendly features make
the Rheem Tankless the easiest tankless water
heater to own. Thedigital displaymakes it
simple to set thewater temperature. Simply
set the desired temperatureand walkaway.
Because the water isheated onlywhen itis
needed, the outgoing watertemperature
remains constant.
SELF-DIAGNOSTIC
Should maintenance be required,the unit’s
self-diagnostic system will displaya
maintenance code, which makes
troubleshooting quick, accurate and
less expensive.
EZ-LINK™CABLE
EZ-Link cable connects twotankless units
to operate as one– nowavailable forhigh
demand applications.
RHEEM QUALITY
We are committed to providingthe highest
quality product to customers.The Rheem
Tanklessis noexception. Thespecially
designed features have beenfield and
laboratory tested to ensureconsistent, precise
operation to meet ourquality standards.
• Use as an energy-efficientwater heater. Use larger models
for multipleuse applications,smaller models for single use
applications.
• Perfect for handling thehot water demands of today’s
oversize tubs.
• Heat water for avacation home withoutthe
inconvenience of emptying and
refilling a tank-style water
heater each season.
• Provides an ideal
solution when
space is an issue.
the perfect solutionimagine
never r unning out of
hot wate r again…
for a wide vari ety of w ater heating needs
These innovative, new tankless gas water heaters provide
a continuous supply of hotwater froman energy-efficient and
space-savingdesign –about the size of a medicinecabinet.
•
UMC-117remote control is included
and can be set from the out-of-the-box
120 degrees – up to a 140 degree
maximum
(additionalremote controlthermostats
areavailable –sold separately)
• EZ-Link
™
cable connectstwo tankless
units to operate as one – now available
for high demand applications
• Exclusive! Guardian SBT
™
sensing
burner technology
• Exclusive! Guardian OFW
™
overheat
film wrap
• Exclusive! High-altitudecapability
options– upto 9,840 ft. elevation
above sea level
(altitudechip requiredfor
selectmodels – soldseparately)
• Exclusive! All Rheem models can
be linked in up to 20 unit manifold
installationsby using the optional
MIC-180and MICS-180 manifold
controlassembly
• All Rheem tankless models are
third-partyefficiency certified
by GAMA
• Continuous hot water
• Energy saving design
• Compact, space saving design
• Intelligent electroniccontrols designed
to increase energyefficiency and safety
• Self diagnostic program
• Digital display shows temperature
settingand maintenance codes
• All models meet
ENERGYSTAR
®
requirements
• Built-in electric blower
• Indoor units use Category III stainless
steel vents and vent horizontally
or vertically
• Indoor models supplied with a
120 volt power cord
• Environmentally friendlyLow NOx
burner meetsSCAQMD rule 1146
requirements
• Installation vent kits available –
soldseparately
• RTG2-42
†
and RTG-53models feature
freeze protectionto -20°F; RTG-66
and RTGL74models feature freeze
protectionto -30°F
Limited Warranty
RTG-53,RTG-66 and RTGL74 models:
12-Yearon heat exchanger,5-Year on
parts, 1-Yearon labor*
RTG2-42models:
10-Yearon heat exchanger,
3-Yearon parts*
*See ResidentialWarrantyInformation Brochures
forcomplete warrantyinformation.
Certificationsand Ratings
Theseunits aredesigned tomeet orexceed ANSI
(AmericanNational StandardsInstitute) requirements
andhave beentested accordingto D.O.E.test
proceduresand meetor exceedthe energyefficiency
requirementsof NAECA,ASHRAE standard90, ICC
Codeand allstate energyefficiency performance
criteriafor energyconsuming appliances.
Specifi cations
D
ESCRIPTION FEATURES ROUGHINGIN DIMENSIONS(SHOWN ININCHES) ENERGYINFO.
GAS WATERFLOW RATE VENT SHIP. D.O.E.ANN.
M
ODEL INPUT TEMP.
GPM@ 77° GPM@ 45° GPM@ 35°
C
ONNECTION DIAMETER WEIGHT ENERGY OP.COST
NUMBER BTU/HR. TYPE RANGE
RISEMAX. RISE MAX. RISE MAX. WATER GAS
HEIGHT WIDTH DEPTH (INCHES) (LBS.) FACTOR NAT/LP
RTGL74DVN
19,000-
Indoor
100°to
4.3 7.4 8.5 3/4 3/4 25-3/8 14-7/8 11-1/8
4 by4
55 .82 $223/$374
199,900
D
irectVent
140°F
2
-PIPE
RTGL74XN
†
19,000-
Outdoor
100°to
4.3 7.4 8.5 3/4 3/4 25-3/8 14-7/8 11-1/8 N/A 55 .82 $223/$374
199,900 140°F
RTGL74PVN
19,000-
Indoor
100°to
4.3 7.4 8.5 3/4 3/4 25-3/8 14-7/8 11-1/8 4 55 .82 $223/$374
199,900 140°F
RHEEM TANKLESS WATERHEATERS FOR3 BATHROOM HOMES
RTG2-42PVN
†
21,500-
Indoor
100°to
2.5 4.2 5.5 3/4 3/4 20-1/2 13-3/4 6-1/4 3 35 .83 $220/$369
118,000 140°F
RHEEM TANKLESS WATERHEATERS FORONE BATHROOM HOMES
RTG-53DVN
20,000-
Indoor
100°to
3.0 5.3 6.8 3/4 3/4 23 13-3/4 7-1/4
3 by5
39 .82 $223/$374
141,000
DirectVent
140°F
CONCENTRIC
RTG-53XN
†
19,000-
Outdoor
100°to
3.0 5.3 6.8 3/4 3/4 20-1/2 13-3/4 6-1/4 N/A 36 .82 $223/$374
141,000 140°F
RTG-53PVN
21,500-
Indoor
100°to
3.1 5.3 6.8 3/4 3/4 20-1/2 13-3/4 6-1/4 3 36 .82 $223/$374
145,000 140°F
R
HEEM TANKLESS WATERHEATERS FOR 1-2 BATHROOM HOMES
RTG-66DVN
11,000-
Indoor
85°to
4.0 6.6 8.4 3/4 3/4 25-5/8 13-7/8 9-7/8
3 by5
54 .82
$223/$374
180,000
DirectVent
140°F
CONCENTRIC
RTG-66XN
11,000-
Outdoor
85°to
4.0 6.6 8.4 3/4 3/4 23-5/8 13-7/8 8-7/8
N/A
54 .82
$223/$374
180,000 140°F
RHEEM TANKLESS WATERHEATERS FOR2-3 BATHROOM HOMES
Allmodels are availablein Natural Gas and Propane(LP). For Propanereplace the N withP when ordering.
• Factoryset temperatureis120° Ffor RTG2-42,RTG-53, RTG-66and RTGL74models.See UseandCare Manualforsetting.
• Forinstallations above3,280 feet,adjustmentis required.Referto Rheemprice listor consultfactoryfor details.
• Consultfactory forinformation onsizingthe application.
InstallationVent Kits available,sold separately.
Indoormodels vent horizontally orvertically: These waterheaters havea built-inelectricblower toforceexhaustgas totheoutside.Category IIIstainless steelventis (UL1738certified)required.
Type“B”vents are not permitted.
ModelNumber 35° 45° 50° 60° 70° 77° 80° 90° 100°
RTG2-42Water Flow(GPM) 5.5 4.2 3.8 3.2 2.7 2.5 2.4 2.1 1.9
RTG-53Water Flow(GPM) 6.8 5.3 4.7 3.9 3.4 3.1 3.0 2.6 2.4
RTG-66Water Flow(GPM) 8.4 6.6 5.9 4.9 4.2 4.0 3.6 3.3 2.9
RTGL74Water Flow(GPM) 8.5 7.4 6.6 5.5 4.7 4.3 4.1 3.7 3.3
Aboveestimates arefor sizingpurposes only.
Maximum Hot Water Flow Rate and Temperature Rise
All indoortankless unitsmust bevented vertically
or horizontallyto theoutdoors usingCategory III
stainless steelventing material(No otherventing
material ispermitted). Allindoor modelsrequire
stainless steelventing material.
Ventingdetails, includingclearances anddiagrams
can befound inthe “Use& CareManual” ofRheem
indoor tanklesswater heaters.
Venting Options and Installations
The Rheem Tankless
makes quick work of all these
applicationswith one
convenient,reliable unitthat
will fit almost anywhere
indoors, or if space is tight,
ask about our outdoor models.
Whole-Home Systems
Renovations, Additions and
Vacation Homes
Oversize Tubs
† Limitedavailability in Canada.
www.energytaxincentives.org