AO Smith BTR400A

BTR-400A Commercial Tank Type Water Heater Nat Gas 100 Gal Master-Fit 390,000 BTU Input

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AO Smith BTR400A

AO Smith BTR-400A Commercial Tank Type Water Heater Nat Gas 100 Gal Master-Fit 390,000 BTU Input
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AO Smith Products
Quick Specs:
Brand: AO Smith
UPC: 671657957247
Stock Id: SID255877
Type: Water Heaters
Fuel Type: Natural Gas
Width: 30.25"
Height: 75.5"
Technical Details
Weight: 874 Lbs
Installation: Indoor
Warranty: 3 Yr Limited Tank
Commercial: Yes
BTU Input: 390,000
Vent Type: Type B
Vent Size: 8"
Gas Connection: 1-1/2"
Gallon capacity: 100

ProMax is an economical water heater designed for households that need an exceptional performer.


  • Commercial tank type water heater
  • Meets or exceeds the thermal efficiency and/or standby loss requirements of the U.S. department of energy and current edition of ASHRAE/IESNA 90.1
  • Electronic ignition
  • CSA certified and ASME rated T and P relief valve
  • Hand hole cleanout
  • Official powered flue damper
  • Eliminator self-cleaning feature
  • ASME construction standard
  • Recovery cap. 100°F Rise GPH: 378
  • Gallon capacity: 100
  • Input BTU/HR : 390,000
  • Warranty: 3 Year limited
  • Overall dimension: 75.5" H x 30.25" W x 30.25" D
  • Vent size: 8
  • Made in USA


  • Installation: Indoor
  • Vent Type: Type B
  • Fuel Type: Natural Gas
  • Type: Water Heaters
  • Commercial: Yes
  • Weight: 874 Lbs
  • Height: 75.5"
  • Width: 30.25"
  • Depth" 30.25"
  • Gallon capacity: 100
  • BTU Input: 390,000
  • Vent size: 8"
  • Gas Connection: 1-1/2"
  • Warranty: 3 Yr Limited Tank

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