CenterPoint Energy
Water Heater Efficiency And Savings Calculator

Use this calculator to calculate the annual operating costs & savings
of a higher efficiency natural gas water heater.
Based on a natural gas cost of $.70/therm

How Does Your Family Use Hot Water?
defaulted values represent a family of four
Natural gas price per therm $
Number of showers per day
Minutes per shower
Automatic dishwasher loads per week
Hand-washed dish loads per week
Automatic laundry loads per week
Hand and face washes per day
Current water efficiency