Efficient water heating
The heat-pump cycle draws heat from the air, reducing the electricity needed compared with conventional electric resistance heating.
OUR RECOMMENDED HEAT PUMPiStore.
iStore.
Hot water, considered.
We choose iStore for its efficient heat-pump design, programmable heating, two tank sizes and documented Australian support. The final choice starts with your home.
iStore R290Choose your fit.
WHY UNIFIED SOLAR CHOOSES iSTOREOur preferred heat pump.
Our preferred heat pump.
For practical reasons.
We recommend iStore for its balance of useful features, household options and support. Your water use and installation still decide the right fit.
A good partner for solar
Programmable heating lets us explore daytime operation around available solar and household demand.
Two useful sizes
The 180 L and 270 L all-in-one units give us options for different demand and installation spaces.
Support you can check
Published manuals, Australian support contacts and a five-year parts-and-labour warranty, with conditions clearly documented.
INSTALLER RECOGNITION
Read the survey and methodology ↗First place in SolarQuotes’ 2025 installer survey.
iStore received 29% of votes from the 89 installers who responded when asked which brand they would choose for their own home. This is a dated survey result, rather than a claim that one product suits everyone.
THE NEXT STEPUnderstand the unit.
Understand the unit.
Plan the installation.
Compare both sizes
See the model numbers, tank capacity, heating output, electrical ratings and noise test figures.
View product specifications →Look inside
Explore how the refrigeration cycle moves ambient heat into the tank, with a manufacturer cutaway.
How heat pumps work →Know the ownership details
Understand the warranty, maintenance, location and household-use questions before you commit.
Read the buying guide →Sources, product documents & image credits
Checked 25 October 2026. Original Unified Solar explanations. Product imagery and cutaway supplied through iStore’s manufacturer website; these are product illustrations, not Unified Solar installation photos. No SolarQuotes affiliation is implied.
SolarQuotes heat-pump buying guide ↗ · 2025 installer survey ↗ · Solar Victoria hot-water guidance ↗
GOOD ENERGY STARTS HERELet’s build something
Let’s build something
that fits your life.
Solar, storage, EV charging, off-grid power or hot water. Tell us what you have in mind.
0428 280 294 ↗Family-owned
Proudly based in Bendigo
Proudly based in Bendigo
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