A.O. Smith GSP 100, GSP 130, GSP 150, GTP 130, GTP 150 User Manual

COMMERCIAL-GRADE

RESIDENTIAL GAS WATER HEATERS

POLARIS™ HIGH EFFICIENCY

COMMERCIAL-GRADE RESIDENTIAL

The Polaris high efficiency gas water heater is the high performance answer
for today’s hot water needs. It can provide endless hot water* and can be
used for a combination of domestic hot water and space heating.

CONDENSING DESIGN

• Operates at up to 96% thermal efficiency
which saves money on operating costs
compared to a standard 80% efficient gas
water heater.

• Helical internal heat exchanger keeps hot
combustion gases in the tank longer to
extract more heat into the water.

STAINLESS STEEL CONSTRUCTION

• Tank and helical heat exchanger are
constructed from 444 stainless steel for
excellent corrosion resistance without the
need for an anode.

WHISPER QUIET OPERATION

• Ultra quiet blower and burner to minimize
noise.

POWER DIRECT VENT DESIGN

• Direct vent using PVC, CPVC or
Polypropylene (solid core only) through a
sidewall or roof.

• Optional concentric vent kit.

• 2” pipe vents up to 52 equivalent feet
(100-150k BTU/hr inputs)

• 3” pipe vents up to 130 equivalent feet

ADVANCED ELECTRONIC CONTROL

• Large touchscreen display

• Precise temperature control

• Advanced water heater status and
diagnostics

FULLY SERVICEABLE FROM
THE FRONT

• Two front access panels expose all
serviceable components. Modular
components are all easily removed.

ULTRA-LOW NOX MODULATING
GAS BURNER

• Enhanced Ultra-low NOx burner complies
with SCAQMD Rule 1146.2 and other Air
Quality Management Districts with similar
requirements for NOx emissions of less than
14 ng/j.

• Modulating burner maintains high efficiency
operation at lower input rates.

SIDE-MOUNTED HOT AND COLD
RECIRCULATING TAPS

• Polaris can be easily installed with a
recirculation system or as part of a combined
domestic & space heating system.

AVAILABLE IN NATURAL GAS OR
PROPANE

CSA CERTIFIED AND ASME RATED T&P
RELIEF VALVE

STANDARDS AND CERTIFICATIONS

• Design-certified by CSA International
according to ANSI Z21.10.3 – CSA 4.3
Standards.

• Meets UBC, CEC, and ICC National Codes.

• Meets the thermal efficiency and standby
loss requirements of the U. S. Department
of Energy and current edition of ASHRAE/
IES 90.1.

10-YEAR LIMITED TANK AND 1-YEAR
PARTS WARRANTY

• For complete information, consult written
warranty or go to hotwater.com.

*When sized appropriately. Model GTP 199 can deliver 6.95
GPM continuous flow, based on 65°F inlet water temperature,
120°F outlet temperature.

© May 2017 A. O. Smith Corporation. All Rights Reserved

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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AOSRG47108

Air Inlet

Air Inlet

COMMERCIAL-GRADE

RESIDENTIAL GAS WATER HEATERS

Model

Number

GSP 100 34 33 179 0.90 96% 129 100,000 48-1/2 22 2 or 3 15-3/4 40-1/2 41 6-3/8 150

GSP 130 34 N/A N/A N/A 96% 165 130,000 48-1/2 22 2 or 3 15-3/4 40-1/2 41 6-3/8 150

GSP 150 34 N/A N/A N/A 94% 190 150,000 48-1/2 22 2 or 3 15-3/4 40-1/2

GTP 130 50 N/A N/A N/A 95% 165 130,000 62-3/8 22 2 or 3 15-3/4 54-1/2

GTP 150 50 N/A N/A N/A 95% 190 150,000 63-3/4 22 2 or 3 15-3/4 55-3/4

GTP 175 50 N/A N/A N/A 96% 222 175,000 63-3/4 22 3 15-3/4 55-3/4

GTP 199 50 N/A N/A N/A 96% 253 199,000 63-3/4 22 3 15-3/4 55-3/4

Available in Propane (LP) gas. Specify when ordering Propane (LP) gas.
Models certified for sea level to 7,700 ft. elevation.

Nominal
Capacity

Rated
Storage
Volume

Air Inlet

First

Hour

Rating

(Gallons)

UEF

Thermal

Efficiency

Recovery
@ 90° Rise
Gallon Per

Hour

BTU

Input

Per Hour

Dimensions in

Inches Vent

A B C D E F

Connection

1" Water

Connections

T&P

41 6-3/8 150

55 6-3/8 176

56-1/4 6-3/8 180

56-1/4 6-3/8 180

56-1/4 6-3/8 180

Top Outlet: 1” NPT

Gas

Supply*

Approx.

Shipping

Side Inlet: 1” NPT
Side Taps: 1” NPT
Condensate Drain Outlet: 1/2” NPT

Weight

(lbs)

Additional
Side Taps

For Technical Information, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

© May 2017 A. O. Smith Corporation. All Rights Reserved

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

Page 2 of 2

AOSRG47108