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Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
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DM-38T-155-3N
Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
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DM-38T-155-3X
Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
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DM-38T-155E-3N
Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
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DM-38T-155E-3X
Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
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DM-75T-125-3N
Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
Manufacturer N/A Bradford White®
Capacity N/A 38 U.S. gal31 Imp. gal144 L N/A 38 U.S. gal31 Imp. gal144 L N/A 38 U.S. gal31 Imp. gal144 L N/A 38 U.S. gal31 Imp. gal144 L N/A 75 U.S. gal62 Imp. gal284 L
Input Power N/A 155000 BTU/hr45.4 kW N/A 155000 BTU/hr45.6 kW N/A 155000 BTU/hr45.4 kW N/A 155000 BTU/hr45.6 kW N/A 125000 BTU/hr36.6 kW
Recovery at 40 ºF Degree Rise N/A 368 gal/h N/A 368 gal/h N/A 368 gal/h N/A 368 gal/h N/A 303 gal/h
Recovery at 22 ºC Degree Rise N/A 1391 L/h N/A 1391 L/h N/A 1391 L/h N/A 1391 L/h N/A 1147 L/h
Recovery at 100 ºF Degree Rise N/A 147 gal/h N/A 147 gal/h N/A 147 gal/h N/A 147 gal/h N/A 121 gal/h
Recovery at 56 ºC Degree Rise N/A 556 L/h N/A 556 L/h N/A 556 L/h N/A 556 L/h N/A 458 L/h
Recovery at 140 ºF Degree Rise N/A 107 gal/h N/A 107 gal/h N/A 107 gal/h N/A 107 gal/h N/A 86 gal/h
Recovery at 78 ºC Degree Rise N/A 397 L/h N/A 397 L/h N/A 397 L/h N/A 397 L/h N/A 326 L/h
Schematic N/A
Schematic Drawing for Commercial Flue Damper Millivolt-Powered Energy Saver Gas Water Heaters
Top Vent Height A N/A 51 in1295 mm N/A 51 in1295 mm N/A 51 in1295 mm N/A 51 in1295 mm N/A 72-1/4 in1835 mm
Jacket Diameter B N/A 28-1/4 in718 mm
Vent Diameter C N/A 6 in152 mm N/A 6 in152 mm N/A 6 in152 mm N/A 6 in152 mm N/A 5 in127 mm
Front Hot Water Connection D N/A 34-1/2 in883 mm N/A 34-1/2 in883 mm N/A 34-1/2 in883 mm N/A 34-1/2 in883 mm N/A 54-1/2 in1384 mm
Floor to Gas Connection E N/A 4-5/8 in117 mm N/A 4-5/8 in117 mm N/A 4-5/8 in117 mm N/A 4-5/8 in117 mm N/A 4-3/4 in121 mm
Front Cold Water Connection F N/A 19-3/8 in492 mm N/A 19-3/8 in492 mm N/A 19-3/8 in492 mm N/A 19-3/8 in492 mm N/A 34 in864 mm
Floor to Top of Heater H N/A 43 in1092 mm N/A 43 in1092 mm N/A 43 in1092 mm N/A 43 in1092 mm N/A 65 in1651 mm
Floor to Top Water Connection J N/A N/A N/A N/A N/A 67-1/8 in1705 mm
Water Connection N/A 1-1/2 in38 mm
Gas Connection Diameter N/A 3/4 in19 mm
Relief Valve Opening N/A 3/4 in19 mm
Standard Approximate Shipping Weight N/A 438 lb199 kg N/A 438 lb199 kg N/A 438 lb199 kg N/A 438 lb199 kg N/A 520 lb236 kg
ASME Approximate Shipping Weight N/A
Model Type N/A N/A N/A Low NOx Compliance N/A Low NOx Compliance N/A
Type N/A Natural Gas N/A Liquid Propane Gas N/A Natural Gas N/A Liquid Propane Gas N/A Natural Gas
Style N/A Flue Damper Millivolt Ignition
Size N/A C
Test Pressure N/A 300 psi2068 kPa
Working Pressure N/A 150 psi1034 kPa
Industry Standards N/A AHRI Certified® ASME Certified CSA® Certified NSF
General Information N/A All gas water heaters are certified at 300 psi test pressure (2068 kPa) and 150 psi working pressure (1034 kPa). All models are design certified by CSA® International (formerly AGA/CGA), ANSI standard Z-21.10.3, for up to 180 ºF (82 ºC) application as an Automatic Storage Heater, and an Automatic Circulating Tank Heater. As an Automatic Storage Heater, all models are complete, self-contained water heating systems. It needs no separate storage tank, pump, wiring or elaborate piping network. When equipped with a mixing valve, it will supply 180 ºF (82 ºC) sanitizing and lower temperature general purpose hot water simultaneously. These models can be used either as a single unit or in multiples connected in series or parallel (recommended).

Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.
Features N/A The Commercial Flue Damper Models feature:
  • Automatic Flue Damper - Reduces stand-by loss, saving gas consumption and improving overall efficiency.
  • Hand Hole Cleanout - Allows inspection of the tank interior and facilitates the removal of sediment deposits.
  • Millivolt-Powered Control - No external electrical source is required for operation. An adjustable thermostat can be set up to 180 ºF (82 ºC).
  • Factory Installed Hydrojet® Sediment Reduction System - Cold water inlet sediment reducing device helps prevent sediment build up in the tank.
  • Vitraglas® Lining - Bradford White tanks are lined with an exclusively engineered enamel formula that provides superior tank protection from the highly corrosive effects of hot water. This formula (Vitraglas®) is fused to the steel surface by firing at a temperature of over 1600 ºF (871 ºC).
  • Water Connections - Factory installed true dielectric waterway fittings extend heater life and ease installation. Multiple water connection locations allow for greater installation flexibility.
  • E.C.O. - An automatic re-set Energy Cut Off (E.C.O.) shuts off all gas in the event of an overheat condition. This automatically resets when operation conditions are back to normal.
  • Non-CFC Foam Insulation - Covers the sides and top of tank, reducing the amount of heat loss. This results in less energy consumption, improved operation efficiencies and jacket rigidity.
  • Magnesium Anode Rods - Provide added protection against corrosion for long trouble-free service.
  • Sanitizing Capability - Temperature setting up to 180 ºF (82 ºC).
  • Low NOx Construction Available.
  • T&P Relief Valve - Installed.
  • Low Restriction Brass Drain Valve - Durable tamper proof design.
  • NSF construction available.
  • North Carolina Code Compliant.
  • ASME code available on all models above 200,000 BTU/Hr.
Warranty N/A
  • 3-Year Limited Tank Warranty / 1-Year Limited Warranty on Component Parts.
Note N/A Fiberglass Insulation

Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
N/A Fiberglass Insulation

Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
N/A Fiberglass Insulation

Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
N/A Fiberglass Insulation

Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
N/A Meet or exceed ASHRAE 90.1b (Current standard) C.E.C. Listed.