High Efficiency Savings Calculator

The High Efficiency water heaters from American can significantly reduce your energy consumption and save you money. User this calculator to quickly estimate annual savings and the payback period.

American Water Heater Model

Efficiency: 95 %
Input: 120,000 Btu/hr
Heater Cost: $
Installation Cost: $

Comparison Model

Efficiency:   %
Heater Cost: $
Installation Cost: $

Application Settings

Number of Heaters:  
Energy Cost: $ per Therm More Information

The cost of energy is highly dependent on your particular location. A typical value is $1.50 per Therm, but it is recommended that you check local fuel bills or contact local energy suppliers for a more representative number to use.

Hot Water Usage:  
Volume:   US Gallons per day More Information
Sample Gallons Per Day Chart
Business Type Hot Water Use/Day* Notes
Quick Service Restaurant 500 Paper Restaurant/No Dish Washing
Full Service Restaurant 2000-3000 Full Service Restaurant
*Based on estimated average use per industry standards


Water Heater Savings
  Daily Annual
Reduced Run Time (hours):
Energy Savings (Therms):
Cost Savings:
Payback Period:
Comparison Details
    Other Heater
Run Time: Hours per day
  Hours per year
Energy Consumption: Btu per day
  Btu per year
  Therms per day
  Therms per year
Operating Cost: Per day
  Per year


Disclaimer: The American AmeriSize sizing program is a tool that can be used to estimate water heater requirements for many common applications. AmeriSize is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. It is the sole responsibility of the system designer to select the correct products needed for the specific application. American reserves the right to make changes to AmeriSize without notice. For more see Terms of Use.

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American Water Heaters reserves the right to make product changes or improvements at any time without notice.