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All Categories > Commercial Water Heaters > NON NOx Commercial Water Heaters > American Standard® Natural Gas Commercial Water Heaters > American Standard® Commercial Water Heaters > Item # D-100T-199-AS  

Item # D-100T-199-AS, Model D-100T-199-AS (Tall) 100 Gallon (gal) Heavy Duty Storage Direct Spark Ignition Dampered Commercial Gas Water Heater

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The American Standard® Commercial Gas Model D-100T-199-AS is designed to deliver large quantities of hot water economically through utilization of the most energy-saving techniques. Customary applications include industrial buildings, motels, hotels, schools, hospitals, restaurants, laundromats, car washes and multi-family developments up to fourteen single or eleven double bath units.

Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Maximum Recovery  · Maximum Hot Water Delivery  · Electrical Characteristics  · Testing and Certifications  · Features  · Warranty  · Note



American Standard®

Tank Capacity

100 gal

Input Power

199900 BTU


Natural Gas

Thermal Efficiency

80 %



Test Pressure

300 psi

Working Pressure

150 psi

Industry Standards

ANSI Z-21.10.3 - CSA 4.3
ASHRAE Standards 90.1-1999




Exterior Dimension A

78-1/4 in

Exterior Dimension B

28-1/4 in

Exterior Dimension C

70-1/2 in

Vent Size

6 in

Top Pipe Size

1-1/2 in

Rear and Front Water Connection

2 in

Height to Top Water I.P.S. Connection D

73-5/8 in

Top Spread Water I.P.S. Connection E

21-1/4 in

Height to Rear and Front Hot Water I.P.S. Connection F

62 in

Height to Rear and Front Cold Water I.P.S. Connection G

18-3/4 in

Gas I.P.S. Connection Height H

4-3/4 in

Gas I.P.S. Connection Size

3/4 in

Height to T and P Opening J

63-5/8 in

T and P Opening

3/4 in

Maximum Recovery

Recovery at 40 ºF Temperature Rise

485 gal/h

Recovery at 50 ºF Temperature Rise

388 gal/h

Recovery at 60 ºF Temperature Rise

323 gal/h

Recovery at 70 ºF Temperature Rise

277 gal/h

Recovery at 80 ºF Temperature Rise

242 gal/h

Recovery at 90 ºF Temperature Rise

215 gal/h

Recovery at 100 ºF Temperature Rise

194 gal/h

Recovery at 110 ºF Temperature Rise

176 gal/h

Recovery at 120 ºF Temperature Rise

162 gal/h

Recovery at 130 ºF Temperature Rise

149 gal/h

Recovery at 140 ºF Temperature Rise

138 gal/h

Maximum Hot Water Delivery

Storage Capacity

100 U.S. gal

One Hour Recovery at 100 ºF Temperature Rise

194 gal/h

Maximum Hot Water Delivery (1 Hour)

264 L

Maximum Hot Water Delivery (2 Hours)

458 L

Maximum Hot Water Delivery (3 Hours)

652 L

Maximum Hot Water Delivery Recovery at 100 ºF Temperature Rise

3.2 g/min

Electrical Characteristics

AC Voltage

120 V


60 Hz


<5 A

Testing and Certifications
  • 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
  • Tested and listed with CSA® International in accordance with ANSI Z21.10.3 - CSA® 4.3 for up to 180 ºF operation as an automatic storage and/or automatic circulating tank heater. ASHRAE Standard 90.1 1999 addendum 90.1b. CSA® certified to meet NSF/ANSI 5 Standards

  • Heavy Gauge Steel Tank incorporating fewer internal flue tubes resulting in fewer critical welds to yield added years of trouble-free service.
  • Inner tank glass-lined with Dura-Glas™ and fired at 1600 ºF for optimum protection from the effects of corrosion.
  • R-8.3 non-CFC foam insulated to save energy and reduce fuel costs by maximizing heat retention.
  • Four anode rods to ensure maximum tank life.
  • Self-Cleaning turbulence inducing cold water inlet-tube engineered to diminish hard water area sediment deposits.
  • Full size hand-hole cleanout for eased tank inspection and/or removal of sediment deposits.
  • Electronic direct-spark ignition system saves fuel by eliminating the need for a standby gas pilot.
  • Automatic motorized flue damper reduces tank heat loss during standby periods for lowest operating costs.
  • Fully adjustable 24-volt controls provide temperature settings to 180 ºF. When installed with a mixing valve, the D-100T-199-AS can deliver 180 ºF sanitizing and 140 ºF general purpose hot water simultaneously.
  • Factory installed energy cut-off system and pressure/temperature relief valve.
  • Top 1-1/2", 2" rear and 2" front water connections for universal replacements, connection to circulating lines and eased multiple heater or storage tank installations.

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

This water heater meets the requirements of ASHRAE and meets or exceeds the thermal efficiency requirements of california and other states recognizing ASHRAE.

Recovery rate indicated on heater rating plate is based on 75% (76%) thermal efficiency according to CSA (ANSI, Z.21.10.3). Manufacturer reserves the right to make product changes and/or improvements with or without notice.


·  Design Certified

·  Intertek ETL Standard


Brochure for Model D-100T-199-AS (Tall) 100 Gallon (gal) Heavy Duty Storage Direct Spark Ignition Dampered Commercial Gas Water Heaters
(PDF, 454KB)