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.

ASME – 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

Energy Guide Details



Large Volume Storage Tank


Limited Tank - 5 Years

KwikComfort® Financing can help make your purchase even easier.
Ruud makes it easy to find a financing option that works for you! With many options and benefits available, KwikComfort Financing is the best way to get the home comfort you need without the wait.

  • Applications made easyWe'll help you avoid lengthy contracts, headaches and hassles.
  • Kwik credit decisionsYou'll get an answer to your application within minutes.
  • Fast credit for the futureFinance your Ruud equipment and anything you want to add later.
  • Reduced interest/fixed paymentsGet low interest and fixed monthly payments until the purchase is paid.
  • Minimum monthly paymentTake advantage of convenient monthly payments that fit your budget.
  • Deferred interest/no interestEnjoy interest-free payments as long as the balance is paid by the due date.