Hot Water Cost

Hot water cost calculator

Your estimated out-of-pocket cost for a new system, after the rebates that apply in your state.

Last checked

Your cost after rebates

Three choices. The estimate updates as you go.

Where is the home?
What are you replacing?
What would you install?

Estimated out of pocket

Installed price
Rebates and discounts

    An estimate from published 2026 price ranges, not a quote. Your installer's quoted price already includes the federal STC discount. Eligibility for each rebate is set by the program. Check your state's rules

    How the estimate is worked out

    We start from the published 2026 installed price range for the system you choose, then take off each rebate or discount that applies to your state, the system and what you are replacing.

    • Victoria: the Victorian Energy Upgrades discount comes off first. The Solar Victoria rebate then pays 50% of the price that is left, up to $1,000. Installers report a minimum contribution of $200, so the estimate never drops below it.
    • New South Wales: the Energy Savings Scheme discount for a heat pump, which depends on whether you replace electric or gas.
    • South Australia: not included, because REPS offers are set by each energy retailer. How to find them
    • Queensland: not included, because the state appliance rebate has closed.

    What the estimate leaves out

    Moving from gas to electric can need new electrical work, and a tight or elevated site can add labour. The locally made Solar Victoria rate of up to $1,400 is not modelled; if your product qualifies, your cost will be lower than shown.

    Installer-reported figures are labelled in the calculator. Official figures come from the program's own page.