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iStore heat pump hot water Register it properly.

iStore's hot water range is heat pumps only, in a 180L and a 270L size. If you're swapping an old electric or gas tank for one, a plumber who specialises in hot water can check the size, the spot and the paperwork. PlumbMatch is not affiliated with iStore.

Updated 29 October 2026

What iStore sells

iStore describes itself as an "Australian-owned, family-run company" whose "journey started with a single product: our heat pump." Its home page lists two of them, the iStore 180L and the iStore 270L, and mentions an established Australian distribution network.

It also sells solar inverters, home batteries, an EV charger and pool heaters. The pool heaters are for pools, not your household hot water.

Picking between the two sizes

Size is the main choice. Tell the plumber how many people live with you, when everyone showers, and whether that's likely to change. Our size checklist helps you get your answers ready.

Queensland has its own installer rule: heat pumps there must be fitted by a hot water installer holding a QBCC solar and heat pump endorsement.

Getting the warranty registered

  1. Note how you bought it

    iStore's warranty page says that if you bought directly from iStore, your warranty was registered automatically.

  2. Bought through a reseller?

    Then iStore asks you to fill in its registration form yourself.

  3. Collect the serial numbers

    iStore asks you to get them from your installer. Ask at handover, before the plumber leaves.

  4. Keep the paperwork together

    Store the invoice, the serial numbers and the compliance certificate in one place.

Before you book the install

  • Is the 180L or the 270L right for us, and why?
  • In Queensland: do you hold the QBCC solar and heat pump endorsement?
  • Are you buying it from iStore or a reseller, and who registers the warranty?
  • Where will the unit go, and how far is it from the bedrooms?

If it were our house

Ask the plumber to read out the serial numbers while you fill in the registration form, before they pack up. It takes a few minutes on the day and much longer if you have to chase them later. Choose a plumber who specialises in hot water and has fitted heat pumps before.

Questions people ask

Does iStore make gas or solar hot water?

Its website showed no gas or solar water heaters when we checked. The hot water range is the two heat pumps, and iStore's solar products are inverters and batteries for solar power.

Do I have to register an iStore heat pump?

If you bought it from iStore directly, iStore says the warranty was registered automatically. If you bought through a reseller, it asks you to fill out its form with the serial numbers from your installer.

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