Residential Gas Water Heaters

CLOSED COMBUSTION

POWER DIRECT-VENT

 

FIRST

 

 

BTU

RECOVERY

 

 

 

DIMENSIONS IN INCHES

 

 

APPROX.

MODEL

HOUR

ENERGY

GAL.

INPUT

90ºF RISE

R

 

 

 

 

 

 

 

SHIPPING

NUMBER

RATING

FACTOR

CAP.

PER HOUR

GALLONS

VALUE*

A

B

C

D

E

F

BLOWER

WEIGHT

 

GALLONS

 

 

NATURAL†

PER HOUR

 

 

 

 

 

 

 

OUTLET

(LBS)

GPD-40

70

.60

40

40,000

41

16

57

48-1/2

21

15

8

42

3

224

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPD-50

87

.59

50

40,000

41

16

66

57-1/2

21

15

8

51

3

232

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPDX-50

105

.58

50

65,000

64

16

69-1/2

61

21

15

8

54-1/2

3

232

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPD-75

130

.58

75

70,000

72

16

71-1/2

61-1/2

26-1/4

15-1/2

8

54-3/4

3

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPDX-50 is supplied with 5’ of 3” ABS vent pipe and must be used for the first 5’ of the exhaust outlet vent system.

GPD-75 is supplied with 5’ of 3” CPVC vent pipe and must be used for the first 5’ of the exhaust outlet vent system.

Recovery capacity based on actual performance tests.

Water connections, 3/4" on all models.

†Propane inputs/recoveries: GPD-40: 36,000BTU/37GPH GPD-50: 38,000BTU/39GPH GPDX-50: 60,000BTU/59GPH GPD-75: 65,000BTU/67GPH

*R Value shown is “performance rated.”

IMPORTANT: VENTING AND COMBUSTION AIR REQUIREMENTS

Read and follow requirements shown in the Installation Manual for ProMax® Power Direct-Vent Gas water heaters dealing with type, placement and length of vent pipe and vent termination, as well as clearances required to provide

C

E

4"

adequate combustion and proper ventilation.

IMPORTANT:

SEE INSTALLATION MANUAL FOR COMBUSTION AIR AND VENTING SYSTEM REQUIREMENTS FOR POWER DIRECT-VENT WATER HEATERS

OPTIONAL (DELUXE) ROUND HORIZONTAL

VENT TERMINATION KIT

Part Number 9002749

11.5" MIN.

FROM TOP OF HEATER TO CENTER LINE OF FLUE

1/2" GAS CONNECTION

3" VENT

F B A

OPTIONAL (DELUXE) SQUARE HORIZONTAL VENT TERMINATION KIT

Part Number 9003328

D

Maximum hydrostatic working pressure: 150 psi

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

Created October 2008

Page 2 of 2

www.hotwater.com

AOSRG45900

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A.O. Smith AOSRG45900 warranty Important Venting and Combustion AIR Requirements
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AOSRG45900 specifications

A.O. Smith is a well-known name in the field of water heating and treatment, recognized for its commitment to quality and innovation. One notable product is the A.O. Smith AOSRG45900, a high-efficiency residential gas water heater designed to meet the needs of modern households. This model seamlessly combines advanced technology and user-friendly features, making it a popular choice for consumers.

At the core of the AOSRG45900's appeal is its impressive energy efficiency. It boasts an Energy Factor (EF) rating that places it among the top contenders in the market for energy-efficient water heating. This translates to lower energy bills and a reduced environmental footprint, highlighting A.O. Smith's dedication to sustainability.

One of the standout features of the AOSRG45900 is its revolutionary Nitrogen-Enhanced technology. This innovation significantly improves the durability of the water heater's tank by reducing corrosion, thus extending the lifespan of the unit. This means homeowners can expect reliable performance for many years, with fewer maintenance concerns.

The heater also incorporates advanced insulation techniques, which minimize heat loss and ensure that water is heated quickly and efficiently. The well-insulated tank minimizes the loss of heat to the environment, meaning that less energy is required to maintain water temperature, further enhancing energy savings.

Safety is another paramount aspect of the AOSRG45900. It includes a flame arrestor and a safety shut-off valve, providing peace of mind for users. These safety features prevent unnecessary accidents, ensuring a secure and worry-free operation.

Additionally, the A.O. Smith AOSRG45900 comes equipped with a user-friendly digital display that allows homeowners to easily monitor and adjust the temperature settings according to their preferences. This level of control enhances the overall user experience and provides an extra layer of convenience.

In summary, the A.O. Smith AOSRG45900 is a state-of-the-art gas water heater that exemplifies quality, efficiency, and safety. Its innovative technologies, like Nitrogen-Enhanced tank protection, combined with excellent insulation and user-friendly controls, make it an ideal choice for families looking for a dependable and efficient water heating solution. With A.O. Smith's reputation for reliability, homeowners can trust the AOSRG45900 to meet their hot water needs confidently.
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