Office Building Sizing

Complete the equipment settings and application sizing fields to have Pro-Size calculate the estimated hot water loads. When ready click the "Continue" button to view the recommended A. O. Smith heaters for your project.

System Settings


Fuel Type:
Equipment Location:
Other Requirements:

- Requirements of < 40 ng/J or 55 PPM
- Requirements of < 14 ng/J or 20 PPM
Display CDN Products:
# of Heaters: Altitude:

Application Data

Cold Water Temp: °F Stored Water Temp: °F
Facility Information
Peak Demand Period: Hours
Unit Application Loads
Occupants: Private Lavatory: Public Lavatory: Kitchen Sink: Pantry Sink: Shower Heads: Flowrate: usgpm Service Sink: Bradley Washfountain (Full): Bradley Washfountain (Half):
Laundry Room or Coin-Op Laundry
Model 1 - Quantity: Capacity: lb Model 2 - Quantity: Capacity: lb
Additional Load and Intentional Oversize
Additional Load: usgph(@ stored temp) Design Oversize

Load Summary

Peak Demand: 0 USGPH Temperature Rise: 100 °F
Sizing Notes

Hot water loads for pools, hot tubs, or other uses should be considered separately. Restaurant or food service loads should be considered separately if independent water heating equipment is to be used.

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A. O. Smith reserves the right to make product changes or improvements at any time without notice.