Unit of Measure



N/A American Standard®


N/A 100 U.S. gal

Input Power

N/A 250000 BTU

First Hour Delivery at 100 ºF Temperature Rise

N/A 358

Thermal Efficiency

N/A 95.3 %

Water Connection (In)

N/A 1-1/2 in

Water Connection (Out)

N/A 1-1/2 in

Gas Connection

N/A 1/2 in

T and P Connection

N/A 1 in

Approximate Shipping Weight

N/A 490 lb

Gas Valve Piping at Inlet Size

N/A 1/2 in


N/A Natural Gas



Industry Standards

N/A ANSI Z-21.10.3 - CSA 4.3 ASHRAE Standards 90.1-1999 ETL



Schematic Drawing for High Efficiency Series Commercial Gas Water Heaters

Floor to Top of Heater A

N/A 76-7/8 in

Floor to Cold Water Inlet B

N/A 7-1/4 in

Floor to Hot Water Outlet C

N/A 71-1/2 in

Floor to Air Intake D

N/A 68-1/8 in

Floor to Exhaust E

N/A 9-1/4 in

Floor to Top T and P

N/A 58 in

Heater Diameter G

N/A 28-3/8 in

Floor to Drain H

N/A 5-1/2 in

Floor to Gas Inlet J

N/A 70-1/4 in

Maximum Recovery

Recovery at 30 ºF Temperature Rise

N/A 963 gal/h

Recovery at 40 ºF Temperature Rise

N/A 722 gal/h

Recovery at 50 ºF Temperature Rise

N/A 578 gal/h

Recovery at 60 ºF Temperature Rise

N/A 418 gal/h

Recovery at 70 ºF Temperature Rise

N/A 413 gal/h

Recovery at 80 ºF Temperature Rise

N/A 361 gal/h

Recovery at 90 ºF Temperature Rise

N/A 321 gal/h

Recovery at 100 ºF Temperature Rise

N/A 288 gal/h

Recovery at 110 ºF Temperature Rise

N/A 263 gal/h

Recovery at 120 ºF Temperature Rise

N/A 241 gal/h

Recovery at 130 ºF Temperature Rise

N/A 222 gal/h

Recovery at 140 ºF Temperature Rise

N/A 206 gal/h

Installation Clearances

Sides Installation Clearances

N/A 0 in

Front Installation Clearances

N/A 0 in

Rear Installation Clearances

N/A 0 in

Top Installation Clearances

N/A 0 in

To Combustible Installation Clearances

N/A 0 in

Maximum Equivalent Vent Length

Maximum Equivalent Vent Length using 2" Pipe PVC, ABS, and CPVC

N/A 65 ft

Maximum Equivalent Vent Length using 3" Pipe PVC, ABS, and CPVC

N/A 135 ft

Maximum Equivalent Vent Length using 4" Pipe PVC, ABS, and CPVC

N/A 135 ft

Testing and Certifications

Testing and Certifications

  • CSA® Design Certified - In conformance with ANSI Z21.10.3-CSA® 4.3. Meets and exceeds ASHRAE 90.1-1999
  • CEC listed. CSA® certified to meet NSF/ANSI 5 Standards



  • Thermal Efficiency Up to 98% - Exceeds ASHRAE 80% requirement.
  • Flexible Venting - Allows optional vertical or horizontal venting and certified for direct vent sealed combustion applications. Provides 135 equivalent feet for 3" or 4" venting and 65 equivalent feet for 2" venting with PVC, CPVC or ABS vent pipe.
  • Electronic Control of Ignition and Thermostat - provides accurate water temperature settings from 100 ºF to 180 ºF. Display panel indicates operating mode, settings and any failure modes for ease of service.
  • Submerged Combustion Chamber - Minimizes radiant heat loss and improves efficiency.
  • Zero Inch Clearance - To combustibles to provide additional installation flexibility.
  • Inner Tank Glasslined - With Dura-Glas™ and fired at 1600 ºF for optimum protection from the effects of corrosion.
  • Magnesium Anode Rods - To extend tank life.
  • Non-CFC Foam Insulated - To save energy and reduce fuel costs by maximizing heat retention.
  • Full Size Hand-Hole Cleanout - For eased tank inspection and/or removal of sediment deposits.
  • Factory Installed Energy Cut-Off System And Pressure/temperature Valve.
  • Low NOx Burner - Exceeds California SCAQMD, BAAQMD and state of Texas requirements.
  • American Standard® gas water heaters are certified at 300 psi test pressure and for 150 psi working pressure. All tanks are hydrostatically tested at the factory.



  • 3-Year Limited Warranty - On Inner Glass-Lined Tank.
  • 1-Year Limited Warranty - On all Other Component Parts.



N/A Manufacturer reserves the right to make product changes and/or improvements with or without notice.