Commercial Hot Water Storage Tanks
A. O. Smith’s industry leading hot water storage tanks for commercial use ensure your restaurant or business always has a steady supply of hot water.
Factory Jacketed & Insulated Storage Tanks
A. O. Smith commercial factory jacketed and insulated storage tanks are designed for storing potable water. A. O. Smith stocks standard, virtical sizes 80 to 200 gallons and large volume, virtical and horizontal sizies 140 to 2,500 gallons. Fitting locations are designed to meet the needs of normal installations plus those for the A. O. Smith Cer-Temp 80® piping methods.
A. O. Smith storage tanks are ideal for use with gas-fired copper heat exchanger equipment for storage of any potable water at temperatures up to 180°F. All stock tanks are glasslined with standard tank openings as shown on following pages. For custom or larger capacities, see our custom line tanks or consult your factory representatives.
Heat Pump Storage Tanks
These A. O. Smith factory jacketed and insulated heat pump storage tanks are optimized for heat pump DHW applications requiring long duration recovery periods.
Heat pump DHW production often relies on minimal input and full utilization of off-peak periods to heat the stored water. These tanks are designed to take full advantage of these systems by reducing turbulence and providing unprecedented stratification. The proprietary stratification system employs a unique baffle that arrests water velocity into and out of the tank to prevent disruption of the stratified layers. An impressive R30 insulation value helps retain heat until it is demanded by the system. Draw down of 95% sets these tanks apart from others, delivering more hot water from a given capacity.
HD Large Volume Storage Tank
A. O. Smith commercial heavy-duty, large volume storage tanks are sized from 120 to 4,000 gallons. Large volume tanks are designed for storing potable water. All tanks are constructed to the requirements of the ASME Code. These ASME Code tanks are available at 125 and 150 PSI working pressure. Consult factory for tanks with special configurations.
Uninsulated Bare Storage Tanks
A. O. Smith commercial uninsulated bare, horizontal and vertical water storage tanks are designed for use with domestic water systems and provide storage capacity for large water draws. These uninsulated storage tanks are glass lined, built and tested in accordance with ASME code Section IV, HLW. They are available in vertical and horizontal mounting options.
Buffer Tank Hydraulic Separator
A Buffer Tank/Hydraulic Separator is designed to maximize the runtime and limit the on/off cycling of a boiler while separating the boiler flow from the system flow.
The Hydraulic Separator aspect of the tank is designed to de-couple the hydronic heating system flow from the boiler flow by acting as a separator so that the two independent flows do not affect one another. When the system flow is less than the minimum required boiler flow there will likely be erratic system delivery temperatures and excessive boiler cycling. These adverse affects can cause premature component failure, and in most cases, boiler efficiency will be adversely affected.
Chilled Water Buffer Tanks
A. O. Smith commercial chilled water buffer tanks are designed to maximize the runtime and limit the on/off cycling of a boiler while separating the boiler flow from the system flow.
Capacities from 120 to 1,000 gallons Vertical Internal Baffle to encourage proper mixing of fluid 125 PSI Working Pressure ASME Sec VIII, U-Stamped Vessel Red Oxide Paint Flanged Connections Five-Year Limited Warranty
Product Documents
Spec Sheet - Factory Jacketed & Insulated Storage Tanks - 80-200 Gal, Vertical Only (AOSTT35100) 
- TJ-80A, TJV-120A, TJ-80S, TJV-120M, TJV-200-M
- TJV-140A, TJV-200A, TJV-250A, TJV-350A, TJV-400A
- Vertical, Round, Jacketed ASME Tanks: TJVT-500A, TJV-600A, TJV-700A, TJV-750A, TJV-1000A
- Vertical, Square, Jacketed ASME Tanks: TJV-1250A, TJV-1500A, TJV-2000A
- Horizontal, Round, Jacketed ASME Tanks: TJH-250A, TJH-300A, TJH-400A, TJHT-500A, TJH-600A, TJH-700A, TJH-750A, TJH-1000A
- Horizontal, Square, Jacketed ASME Tanks: TJH-1250A, TJH-1500A, TJH-2000A, TJH-2500A
Spec Sheet - Uninsulated Standard Stock Bare Storage Tanks (aostt35300)
- T-80 STD, T-120 STD, T-200 STD, T-350 STD, T-140 ASME, T-200 ASME, T-250 ASME, T-350 ASME, T-400 ASME, TVN-500A, TV-600A, TV-700A, TV-750A, TV-1000A, TV-1250A, TV-1500A, TV-1750A, TV-2000A, THN-500A, TH-600A, TH-700A, TH-750A, TH-1000A
Spec Sheet - Chilled Water Buffer Tanks (AOSTT35320)
- ACV*-120, ACV*-200, ACV*-325, ACV*-450, ACV*-500, ACV*-750, ACV*-1000
Spec Sheet - Buffer Tank/Hydraulic Separator (AOSTT35321)
- ABV*-120, ABV*-200, ABV*-325, ABV*-450, ABV*-500, ABV*-750, ABV*-1000
Spec Sheet - Heat Pump Storage Tanks (AOSZE55021)
- TJVHP-250A, TJVHP-500A, TJVHP-750A, TJVHP-1000A
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Replacement Parts
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Water Heater Resources
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Why A. O. Smith?
A. O. Smith is a leading manufacturer of both residential and commercial water heating technologies, including the #1 most specified commercial water heater.
For more than 145 years, we’ve developed state-of-the art products that push new boundaries and improve the lives of our customers.
We combine cutting-edge technology with committed people who take pride in providing the very best support for our customers.
Our products are put through rigorous quality and endurance testing so now matter where hot water is needed, A. O. Smith can provide a solution you can count on.