Hot Water Energy Calculator

Hot water is often the biggest load in the house.

Heat pumps use much less electricity than an element for the same hot water. Everything is worked out in your browser. Nothing is saved or sent anywhere.

1. Water

2. Heater

3. Results

How it was worked out

    What this does and doesn't tell you

    • Tank and pipe heat losses add to this.
    • The heat pump factor is only an example. Check the model's rating.
    • Safety: in Australia, any work on 240V AC wiring, including connecting an inverter, battery or solar system to a home's switchboard or fixed wiring, must be done by a licensed electrician.
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