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Water Heater Annual Energy Cost
Turn daily hot-water use, a temperature rise, and an electricity rate into an annual and monthly cost.
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Your result
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Engine self-test
Running golden cases…
Source notes
- U.S. Department of Energy, Energy Saver — Water Heating
Water heaters lose capacity over time; the Department of Energy describes repair and replacement considerations by fuel type and size.
Reviewed 2026-10-10. Parts, labor, and code requirements vary by region and by unit. Obtain local quotes before you decide.
What this App does not do
This App estimates cost with a simple arithmetic model. It does not read your meter, measure efficiency, or replace a bill.
This free App has no paid features. It does not contact an agency, employer, bank, seller, provider, or other person.