Rheem RTG is a series of ultra low NOx,
mid-efficiency tankless gas water heaters
designed for continuous hot water
Water
Residential Gas
RTG Tankless Water Heaters
Efficiency
• .82 EF with all-copper heat exchanger
• Intelligent electronic controls designed
to increase energy efficiency and safety
Performance
• Exclusive! Water savings setting –
upon activation, this setting can save
homeowners up to 1,100 gallons of
water per year
1
by decreasing the flow
of water through the pipes until the
temperature reaches the heater’s set
temperature
• Low flow fixture compatible – Industryfirst minimum flow rate of .26 GPM and
minimum activation flow rate of .40
GPM ensures the user will receive hot
water even in low demand situations
• Recirculation Pump Kit-Ready – Quickly
pairs with our Recirculation Pump kit
to provide instantaneous hot water
at the tap2
Easy Installation and Service
• 1/2" Gas line compatibility on every
model
• Exclusive! Maintenance Notice Setting
alerts homeowner – flashing a warning
code to call for service check
• Self-diagnostic system for easy
installation and service
• Digital display shows temperature
setting and maintenance codes
• 3"/5" concentric vent system with
Integrated condensate collector
• Connects to Metal Fab. Inc., 3"/5"
concentric venting without an adapter
Technology
•
Hot-start programming helps minimize
fluctuation in water temperature, referred
to as “cold water sandwich”, during
periods of frequent on/off operation
• Exclusive! Guardian OFW™ overheat
film wrap
• EZ-Link
• Manifold up to six units with an optional
• Manifold up to 20 units with the optional
™
cable available for higher
demand applications to connect two
tankless units to operate as one
MIC-6 manifold control board
MIC-185 plus the MICS-180 manifold
control assembly
High Altitude Compliant
• High-altitude capability – up to
8,400 ft. elevation above sea level
3
Low Emissions
• Environmentally friendly ultra low
NOx burner meets SCAQMD
rule 1146.2 requirements
Plus…
• Digital remote control and 10 ft. of
thermostat wire included
• Supplied with a 120-volt power cord
(indoor models only)
• Freeze protection to -30°F
• EZ- Spec
™
Sizing Software – advanced
online tool that takes the guess work
out of sizing tankless applications –
available at www.rheem.com/tankless
Warranty
• 12-Year heat exchanger – residential,
5-year heat exchanger – commercial,
5-year parts and 1-year labor
See Warranty Certificate for complete information
Commercial Applications
RTG Tankless Series can be upgraded
for high-temperature commercial and
hydronic use.
Temperature range is 85°F to 185°F
•
RTG-95 Upgrade Kits
RTG20249A for RTG-95DVLN-1
RTG20249B for RTG-95DVLP-1
RTG20249C for RTG-95XLN-1
RTG20249D for RTG-95XLP-1
RTG-84 Upgrade Kits
RTG20250A for RTG-84DVLN-1
RTG20250B for RTG-84DVLP-1
RTG20250C for RTG-84XLN-1
RTG20250D for RTG-84XLP-1
Note: These upgrade kits are not compatible with
previous models. See the latest Tankless Parts and
Accessories Catalog for a complete listing.
1
Savings based on DOE test procedures.
2
Pump kit designed for single unit applications only.
3
Contact customer service for exact altitude rating for
each model.
4
Consult a tax professional regarding you individual
tax situation and ability to claim a tax credit related to
the purchase of qualifying Rheem products until
December 31, 2016.
QUALIFIES
FOR UP TO A
$300
FEDERAL TAX
CREDIT
Indoor Direct Vent Model
11,000-199,900 Btu/h
11,000-199,900 Btu/h
4
RTG-DVL
Natural and LP Gas
RTG-XL
Outdoor Model
Natural and LP Gas
LEED Points = 2
INTEGRATED HOME COMFOR
PRINTED IN U.S.A. 07/16 WP FORM NO. TK-808 Rev. 7
Water
Residential Gas
RTG Tankless Water Heaters
Specifications
MODEL INPUT TEMP. ACTIVATION 77° RISE 45° RISE MAX. CONNECTION VENT WEIGHT ENERGY RECOVERY
NUMBER BTU/H TYPE RANGE GPM MAX. MAX. GPM
RTG-95 ULTRA LOW NOx SERIES FOR 3 BATHROOM HOMES*
RTG-95DVLN-1
RTG-95XLN-1
RTG-84 ULTRA LOW NOx SERIES FOR 2-3 BATHROOM HOMES*
RTG-84DVLN-1
RTG-84XLN-1
RTG-64 ULTRA LOW NOx SERIES FOR 1-2 BATHROOM HOMES*
RTG-64DVLN-1
RTG-64XLN-1
DESCRIPTION FEATURES ROUGHING IN DIMENSIONS (SHOWN IN INCHES) ENERGY INFO.
GAS MIN. FLOW/ GPM @ GPM @ SHIP.
WATER GAS
199,900
11,000-
11,000-
199,900 140° F
11,000-
180,000
11,000-
180,000 140° F
11,000 -
150,000
11,000 -
150,000 140° F
85° to
Indoor
0.26/0.40
Direct Vent
0.26/0.40
Outdoor
Indoor
0.26/0.40
Direct Vent
0.26/0.40
Outdoor
Indoor
Direct Vent
Outdoor
4.3 7.4 9.5 3/4 3/4 25-5/8 13-7/8 9-7/8
140° F
85° to
4.3 7.4 9.5 3/4 3/4 23-5/8 13-7/8 8-7/8
85° to
3.9 6.7 8.4 3/4 3/4 25-5/8 13-7/8 9-7/8
140° F
85° to
3.9 6.7 8.4 3/4 3/4 23-5/8 13-7/8 8-7/8 N/A 54 .82 83% $199/482
85° to
140° F
85° to
0.26/0.40
0.26/0.40 5.6 6.4
3.3
3.3
5.6 6.4
3/4 3/4 25-5/8 13-7/8 9-7/8
3/4 3/4 23-5/8 13-7/8 8-7/8 N/A 54 .82 83% $199/482
HEIGHT WIDTH DEPTH DIAM. (LBS.) FACTOR EFFICIENCY
3 by 5
54 .82 84%
CONCENTRIC
54 .82 83%
N/A
3 by 5
54 .82 84% $199/482
CONCENTRIC
3 by 5
54 .82
CONCENTRIC
84%
EST. YEARLY
ENERGY COST
NAT/LP
$199/482
$199/482
$199/482
*Based on simultaneous showers using 2.5 gallons per minute. Flow rates vary depending on temperature of cold water supply.
Estimated energy cost based on a national average fuel cost of $1.09/therm for natural gas and $2.41/gallon for LP.
Energy factor determined by the U.S. Department of Energy (DOE) test procedures.
All models are available in Natural Gas and Propane (LP). For Propane replace the N with P when ordering.
SCAQMD 1146.2 compliant.
Factory set maximum temperature is 120° F. See Use and Care Manual for setting.
Consult factory for information on sizing the application.
Add a "C" to the model number when ordering Canadian models. Outdoor models are only for seasonal use in Canada.
Please contact Rheem Canada Ltd. for details.
Vent Termination Kits are required for Direct Vent models. Contact your distributor for details.
Proper gas pressure must be ensured to supply tankless gas water heaters – up to 199,900 Btu/h for RTG-95 models,
up to 180,000 Btu/h for RTG-84 models and up to 150,000 Btu/h for RTG-64 models. (Consult your gas supplier)
Temperature Rise (° F)
Model Number 35° 45° 50° 60° 70° 77° 80° 90° 100°
RTG-95 Water Flow (GPM)
RTG-84 Water Flow (GPM)
RTG-64 Water Flow (GPM)
9.5 7.4 6.6 5.5 4.7 4.3 4.1 3.7 3.3
8.4 6.7 6.1 5.1 4.3 3.9 3.8 3.4 3.0
6.4 5.6 5.1 4.2 3.6 3.3 3.2 2.8 2.5
Above estimates are for sizing purposes only.
GP
10
9
8
7
6
5
4
3
2
1
0
10 20 35 45 50 60 70 77 80 90 100120 140
Water Heater Flow Rate Curves
95 Series Max. Flow
84 Series Max. Flow
64 Series Max. Flow
Maximum Vent Length
(intake/outlet):
Number Maximum
of 90° Length of
Elbows Straight Pipe
1 39.0 ft. (12.0 m)
2 37.5 ft. (11.5 m)
3 36 ft. (11 m)
4 34.5 ft. (10.5 m)
5 33.0 ft. (10.0 m)
6 31.5 ft. (9.5 m)
(Manufacturer approved
venting required)
Parts and Accessories
Venting & terminations, recess boxes, pipe covers, extra remote controls,
EZ-Link
reciculation pump kits and AllClear
For more information on Tankless parts and accessories, see the Parts and
Accessories Catalog or call 866-720-2076.
™
cable, manifolds and cables, service valve kits, service parts, flush kits,
™
water treatment system.
Indoor Direct Vent
1
5
/2”
25 5/8”
5
/8”
4
1
/4”
5
Dimensions from
Center Line
1 1/8”
5”
13
3
3”/5” Concentric
7
/8”9 7/8”
3
/4”
4”
Outdoor
5
23
/8”
7
13
/8”8 7/8”
3
3
/8”
Dimensions from
Center Line
1
5
/4”
1 1/8”
5”
1
2 3/4”
2
/2”
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating • 101 Bell Road
Montgomery, Alabama 36117-4305 • www.rheem.com
INTEGRATED HOME COMFOR
Rheem Canada Ltd./Ltée • 125 Edgeware Road, Unit 1
Brampton, Ontario L6Y 0P5 • www.rheem.com
PRINTED IN U.S.A. 07/16 WP FORM NO. TK-808 Rev. 7
2