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Large Volume Storage Tank

Rheem-Ruud commercial storage tanks are vertical tanks designed for applications that require large quantities of potable hot water in short periods of time. When used in tandem with Rheem-Ruud commercial water heating equipment, these storage tanks provide the flexibility needed for many commercial applications. Installed individually, or manifolded, these storage tanks can provide 80% draw capability without an appreciable temperature decrease in single temperature applications.


Long life tank design

Unique steel formulation with high temperature porcelain enamel to maximize corrosion resistance resulting in a superior tank design. heavy duty magnesium anode rod(s) are installed for longer tank life.


All large volume commercial storage tanks are certified to ASME boiler and pressure vessel code standards.

Efficient design

2" of rigid polyurethane foam insulation provides superior insulating qualities resulting in reduced operating costs.

Tank openings

Circulating line /cold inlet connections are 3" NPT (2-1/2" on 200 gallon) and hot outlet is 2".

Large Volume Storage Tank
200 ST200A
257 ST260A
432 ST430A
504 ST500A
752 ST750A
 940  ST950A

  • 200 - 940 gallons capacities
  • ASME construction standard
  • Heavy duty anode rod
  • 2" Rigid foam insulation
  • 5-year limited tank warranty


Large Volume Storage Tank
Revit Model (ST200-ST950)
Revit Model (STU200-STU950)
Spec Sheet


Limited Tank Warranty - 5 Years