Ruud Tankless Indoor
Gas Water Heaters
Available in 4.2, 5.3 and 7.4 GPM Indoor Models
ꢀ
10-Year Limited Warranty on Heat Exchanger*
3-Year Limited Warranty on Parts*
ꢀ
• New! UMC-117 remote control is included and can be set
• Compact, space saving design
from the out-of-the-box 120 degrees – up to a 140
• Intelligent electronic controls designed to increase energy
degree maximum (additional remote control thermostats are available
– sold separately)
• New! EZ-Link™ cable connects two tankless
units to operate as one – now available for high
demand applications
efficiency and safety
• Self diagnostic program
• Digital display shows temperature setting and
maintenance codes
• Built-in electric blower
• Exclusive! Guardian SBT™ sensing burner technology
• Exclusive! Guardian OFW™ overheat film wrap
• Exclusive! Two high-altitude options – up to 6,560 or
• Uses Category III stainless steel vents and vent
horizontally or vertically
• Supplied with a 120 volt power cord
• Environmentally friendly Low NOx burner meets
SCAQMD rule 1146 requirements
9,840 ft. elevations above sea level (altitude chip required
– sold separately)
• Exclusive! All Ruud tankless models are third-party
certified by GAMA
*See Residential Warranty Information Brochure for complete warranty information.
If the water heater is installed anywhere other than a single family dwelling, such
as a commercial application, or in any system in which the water is recirculated,
the applicable warranty periods will be limited to one (1) year.
• Exclusive! All Ruud tankless models qualify for up to a
$300 federal energy tax credit (refer to your tax advisor for details)
• Exclusive! All Ruud models can be linked in up to 20 unit
manifold installations by using the optional MIC-180 and
MICS-180 manifold control assembly
Energy Factor and Average Annual
®
Operating Costs based on D.O.E.
(Department of Energy) test
procedures. D.O.E. national average
fuel rate natural gas 91¢/therm;
• Continuous hot water
• Energy saving design
LP $1.23/gallon
.
DESCRIPTION
FEATURES
ROUGHING IN DIMENSIONS (SHOWN IN INCHES)
ENERGY INFO.
D.O.E.
GAS
WATER FLOW RATE
GPM @ 77° GPM @ 45°
RISE MAX. RISE MAX.
SHIP.
WEIGHT
(LBS.)
INPUT
BTU/HR.
TEMP.
RANGE*
CONNECTION
VENT
DIAMETER
ENERGY
ANN.
MODEL NUMBER
TYPE
HEIGHT
WIDTH
DEPTH
FACTOR
OP. COST
WATER
GAS
21,500 -
118,000
100° to
140° F
$165 Nat
$244 LP
RUTG2-42PVN†
RUTG-53PVN†
Indoor
2.4
3.1
4.3
4.2
5.3
7.4
3/4
3/4
20-1/2 13-3/4
20-1/2 13-3/4
25-3/8 14-7/8
5-1/4
3
3
4
35
36
55
.83
21,600 -
100° to
140° F
$167 Nat
$246 LP
Indoor
Indoor
3/4
3/4
3/4
3/4
5-1/4
.82
.82
145,000††
19,000 -
199,900
100° to
140° F
$167 Nat
$246 LP
RUTG-74PVN-1†
11-1/8
†
Available in Natural Gas and Propane (LP). For Propane replace the N
Proper gas pressure must be ensured to supply tankless gas water heaters – up to
118,000 BTU for RUTG2-42 models, up to 145,000 BTU for RUTG-53 models, and up to
199,900 BTU for RUTG-74 models. (Consult your gas supplier)
with a P when ordering.
141,000 LP
††
* Factory set maximum temperature is 120° F.
Temperature Rise (°F)
35° 45° 50° 60° 70° 77° 80° 90° 100°
RUTG2-42PV Water Flow (GPM) 5.5 4.2 3.8 3.2 2.7 2.5 2.4 2.1 1.9
RUTG-53PV Water Flow (GPM) 6.8 5.3 4.7 3.9 3.4 3.1 3.0 2.6 2.4
RUTG-74PV Water Flow (GPM) 8.5 7.4 6.6 5.5 4.7 4.3 4.1 3.7 3.3
• For installations above 3,280 feet a high altitude chip is required.
Refer to Ruud price list or consult factory for details.
• Consult factory for information on sizing the application.
Model Number
Installation vent kits available
Kits include components required for horizontal through the wall termination.
RTG20003 – 3" diameter for RUTG2-42PV and RUTG-53PV models.
RTG20007 – 4" diameter for RUTG -74PV models.
Above estimates are for sizing purposes only.
These units are designed to meet
or exceed ANSI (American National
Models vent horizontally
or vertically
Standards Institute) requirements and have
been tested according to D.O.E. test proce-
dures and meet or exceed the energy effi-
ciency requirements of NAECA, ASHRAE
standard 90, ICC Code and all state energy
efficiency performance criteria for energy
consuming appliances.
This water heater has a built-in electric blower to force
exhaust gas to the outside. Category III stainless steel
vent is (UL1738 certified) required. Maximum vent
length for RUTG2-42PV models is 36 feet 2 inches
including one 90° elbow. Maximum vent length for
RUTG-53PV models is (not final) including one 90°
elbow. Maximum vent length for RUTG-74PV models
is 47 feet 6 inches including one 90° elbow.
Before purchasing this appliance, read
important energy cost and efficiency
information available from your supplier.
Type “B” vents are not permitted.
Venting side wall
from side
Venting side wall
from back
In keeping with its policy of continuous progress and product improvement, Ruud reserves the right to make changes without notice.
PRINTED IN U.S.A
07/06 WP
FORM NO. 101-21 Rev. 1
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