DURABILITY TANKLESS
A COMPLETE LINE OF TANKLESS GAS WATER HEATERS FROM STATE
ENERGY STAR® QUALIFIED
MODELS AVAILABLE
STATE TANKLESS
GAS WATER HEATERS
The Durability of State.
The Convenience of Continuous Hot Water.*
The comprehensive line of State tankless
water heaters combines efficient technology
with our reputation of durability to produce
continuous hot water at preset temperatures.
All residential models are ENERGY STAR
qualified and feature improved flow rates.
Condensing models provide the highest
energy efficiency, saving money in both
residential and commercial applications.
The commercial models feature HRS35
copper heat exchangers, providing extra
protection against corrosion.
*When sized appropriately for the application.
®
Product Features:
Innovative Technology
• Condensing models feature
316L stainless steel secondary heat
exchanger, providing additional
protection against corrosion
• Increased flow rates provide continuous
hot water (up to 14.5 GPM)
• Improved scale-reduction software
• Whole house water heating solution
• All models include internal freeze
protection and multiple safety features
• Direct vent conversion kits available
for indoor installations
• Applicable for residential hydronic
heating applications
• Indoor Models include both a Remote
Control and Power Cord as standard
features.
• Outdoor Models include Remote
Control as a standard feature.
Excellent Performance
• Complete range of models from
140,000 to 380,000 BTU to cover
every application
• Residential warranty: 12-year limited
warranty on heat exchanger/5-year parts
• Commercial warranty: 5-year limited
warranty on heat exchanger/5-year parts
Energy Efficiency
• All residential models are
ENERGY STAR
• Condensing models provide
the highest energy efficiency
with 0.91 EF (Energy Factor)
• Commercial models provide
up to 84% thermal efficiency
®
qualified
Commercial
Application Features:
• ASME Certified models available
• Hot water capacity up to 14.5 GPM
• Easily connect up to 4 units together
with no additional parts or accessories
• Connect up to 20 units together for
high-demand applications
• Well-suited for small restaurants,
multifamily housing, hair salons
and spas, laundromats, car washes
and other commercial needs
All residential models:
110, 310, 510, 320 and 520
Temperature
Controller
Models include a remote
temperature controller,
which can set the
temperature of the water
within a specific range
MODEL SELECTION GUIDE.
Ground water
temperature factor
The temperature of incoming ground
water (cold water inlet temperature)
varies greatly throughout the U.S.
and also fluctuates with the changing
of the seasons. The temperature of
water as it enters the water heater will
determine the amount of “temperature
rise” required to achieve the desired
hot water outlet temperature (120°F is
recommended).
Information Mode
Displays diagnostic information such
as inlet and outlet water temperature
Error Codes
When a fault is detected
an error code flashes at
the temperature display
and flow rate
Buzzer
Audible alert in addition to
the error code displayed
Average Ground Water Temperatures
Temperature
Display
Shows the current
temperature setting
Thermostat
Increases/decreases
temperature setting
On/Off Button
Turns the water heater
on/off
The best way to measure your incoming
ground water temperature is to use a
thermometer to measure cold water
temperature during the coldest season
of the year. To simplify the process, use
this map to determine whether your
installation location is in the Southern
Zone, Central Zone or Northern Zone.
Peak hot water demand
The next step is to determine how much
hot water will be required during the
busiest usage period (“peak demand”).
Consider all appliances and fixtures
that use hot water, including lavatory
faucets, kitchen faucets, washing
machines, dishwashers, showers and
bathtubs. Be sure to determine how
many appliances and fixtures will be
used at the same time (“peak demand”).
SOUTHERN ZONE
Average Ground Water
Temperature: 62°F to 77°F
MATCH THE UNIT TO YOUR NEEDS
Number of showers each State unit can handle,
CENTRAL ZONE
Average Ground Water
Temperature: 52°F to 61°F
depending on ground water temperature
NORTHERN ZONE
Average Ground Water
Temperature: 37°F to 51°F
4
STATE DURABILITY TANKLESS
Each State tankless water heater is designed for a specifi c application. Consult your sales representative or contact State for
specifi cations and recommendations on which model is right for your specifi c requirements.
MODEL SPECIFICATIONS
BTU Input Energy
Model Natural / Propane Factor Hot Water Output (GPM)
Number* Type Minimum Maximum (EF) Maximum 45ºF Rise 70ºF Rise
RESIDENTIAL/LIGHT COMMERCIAL NON-CONDENSING MODELS
GTS-110-NI Indoor 19,500 140,000 0.82 6.6 5.1 3.3
GTS-310-NI Indoor 11,000 190,000 0.82 8.0 6.9 4.4
GTS-510-NI** Indoor 11,000 199,000 0.82 10.0 7.2 4.7
GTS-110-NE Outdoor 19,500 140,000 0.82 6.6 5.1 3.3
GTS-310-NE Outdoor 11,000 190,000 0.82 8.0 6.9 4.4
GTS-510-NE** Outdoor 11,000 199,000 0.82 10.0 7.2 4.7
RESIDENTIAL/LIGHT COMMERCIAL CONDENSING MODELS
GTS-320-NIH Indoor 13,000 180,000 0.91 8.0 7.3 4.7
GTS-520-NIH Indoor 13,000 199,000 0.91 9.0 8.1 5.2
GTS-320-NEH Outdoor 13,000 180,000 0.91 8.0 7.3 4.7
GTS-520-NEH Outdoor 13,000 199,000 0.91 9.0 8.1 5.2
BTU Input Thermal
Model Natural / Propane Efficiency Hot Water Output (GPM)
Number* Type Minimum Maximum NG/LP Maximum 45ºF Rise 70ºF Rise
HEAVY-DUTY/COMMERCIAL MODELS
GTS-710-NIE Indoor/Outdoor 24,000 240,000 82%/84% 9.0 8.5 5.5
GTS-710-NIEA (ASME) Indoor/Outdoor 24,000 240,000 82%/84% 9.0 8.5 5.5
GTS-910-NIE Indoor/Outdoor 15,000 380,000 80%/82% 14.5 13.5 8.7
GTS-910-NIEA (ASME) Indoor/Outdoor 15,000 380,000 80%/82% 14.5 13.5 8.7
*For propane, change N to P in the model number when ordering. Example: GTS-520-PIH.
**Can be installed in light duty commercial applications. Includes remote control and can connect up to 4 units.
FLOW RATE GUIDE
Temperature Rise vs. Gallons Per Minute
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
www.statewaterheaters.com
Part #: SBGBR00210 Revised May 2012
Flow rate is
determined by
temperature rise.
To determine
your temperature
rise, subtract the
incoming water
temperature from
the set output
temperature.
All units are factory
set to 120ºF or
122ºF but can
be changed.
SAVE MONEY
Average Yearly Operating Costs
Yearly Cost = (Therms
or gallons or kWh per
year) x (cost per Therm
or gallon or kWh)
Energy consumption
estimated using the
DOE test procedure,
found on ENERGY STAR
2007 report.
Annual costs for NG,
LP and electricity from
2007 U.S. Gov. national
averages.
®
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