Water Heating Energy Calculator

Calculate energy consumption and costs for water heating using official formulas

Unit System

Heater Type

Water Volume(gallons)

Initial Temperature(°F)

Final Temperature(°F)

Heater Efficiency (%)

Energy Cost($ per kWh)

Daily Water Usage(gallons/day)

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Quick Tips

1Use current environmental data
2Consider seasonal variations
3Document calculation assumptions
4Update calculations periodically