270L capacity
Designed for larger households
Australian households.
Australian households.
The iStore 270L
Built for bigger Australian homes.
More hot water. Ready for family demand.
A high-capacity all-in-one heat pump designed to provide dependable hot water for larger families and homes with higher everyday demand.
270L capacity
Ideal for 3–6+ people
4kW+ heating output
Smart Wi-Fi control
The iStore 270L
More capacity. Ready for family demand.
The iStore 270L delivers efficient, dependable hot water in a high-capacity all-in-one system designed for larger Australian households.
Its 270-litre tank and high-output compressor help restore hot water quickly after showers, baths, laundry and other periods of heavy use, making it well suited to busy family routines.
4kW+ output
High-output heating for faster recovery
130L per hour
Industry-leading hot-water recovery
Smart Wi-Fi control
Convenient monitoring and scheduling
Household suitability
Is the 270L right for your household?
The iStore 270L is designed for larger families and homes with higher daily hot-water demand. Its greater storage capacity provides more flexibility through busy mornings, evening routines and periods of repeated use.
Recommended household
3–6+
people
with regular or higher hot-water demand
A strong fit for families, larger homes and households where several people may need hot water within a short period.
Actual suitability depends on shower length, bath use,
appliance demand and individual household habits.
Designed around real family routines
More capacity for everyday demand
Repeated showers
Greater stored capacity for busy morning and evening shower routines.
Baths and larger draws
Better suited to baths and other activities that use a larger volume of hot water.
Laundry and cleaning
Supports everyday washing and cleaning alongside normal household shower demand.
Family peak demand
High-output recovery helps the system respond after periods of concentrated hot-water use.
Lower hot-water demand?
Explore the 180L
A smaller household may be better suited to the iStore 180L.
Consider the 180L for couples, smaller families, townhouses and homes with more moderate daily hot-water use.
High-capacity thermal storage
More stored hot water. Ready when your family needs it.
The iStore 270L combines a large storage tank with temperatures up to 62°C, allowing the system to hold a substantial amount of usable thermal energy.
That stored energy gives larger households greater flexibility through showers, baths, laundry and other periods of concentrated hot-water demand.
-
Greater usable storage
More thermal energy is retained inside the tank for everyday household use.
-
Better suited to family demand
Designed to support repeated hot-water use across busy morning and evening routines.
-
Store energy when it suits you
Built-in controls allow heating periods to be aligned with suitable electricity tariffs or daytime solar generation.
Stored hot-water capacity
iStore 270L
A high-capacity thermal battery
Up to
16.34
kWh
usable thermal energy
Storage temperature
Up to 62°C
Up to 17L more
usable delivery capacity compared with a similar system
limited to 60°C
Approximately 600Wh more
stored thermal energy compared with the same water volume
heated to 60°C
Thermal-storage and delivery figures are calculated from water volume and temperature. Actual usable hot water depends on inlet temperature, mixing temperature, system settings and household use.
High-output performance
Family-sized capacity. Ready sooner.
A larger tank should not mean sluggish recovery. The iStore 270L uses high-output heating technology to restore hot water quickly after showers, baths and other periods of heavy family use.
While many standard heat pumps operate at approximately 2.0kW to 2.8kW, iStore delivers 4kW+ heating output, with output reaching up to 5.05kW under favourable operating conditions.
- Faster recovery after repeated showers
- Better suited to baths and larger hot-water draws
- Less time spent restoring the tank temperature
- Strong performance through periods of family peak demand
Heating-output comparison
High output
Greater output. Faster recovery.
130L
per hour
Industry-leading hot-water recovery under favourable operating conditions.
Maximum heating output
Up to 5.05kW
Achieved under favourable operating conditions at approximately 32.45°C ambient temperature.
Performance varies according to ambient temperature, inlet-water temperature, system settings and operating conditions. Comparisons are based on equivalent operating hours.
Efficient air-to-energy technology
More heat. Less grid energy.
The iStore 270L draws renewable heat from the surrounding air and transfers it into the water, reducing the electricity needed to maintain a dependable family-sized hot-water supply.
High-efficiency heating
Turn a small amount of electricity into significant heating energy.
Unlike a conventional electric element that creates heat directly, the iStore uses electricity to operate a refrigeration cycle that collects freely available heat from the air.
Electrical input
Powers the heat-pump cycle
Ambient heat
Collected from the surrounding air
Heating output
Transferred into the water
- Uses renewable heat already available in the air
- Reduces reliance on conventional electric resistance heating
- Can be scheduled around daytime rooftop solar generation
Efficiency under rated conditions
Rated power input
0.85kW
electrical input under specified conditions
Potential reduction
Up to 70%
less hot-water energy use than conventional systems
High performance from every unit of electricity.
Coefficient of performance
4.82
COP
under rated conditions
A COP of 4.82 means the system can deliver approximately 4.82 units of heating energy for each unit of electricity consumed under the stated test conditions.
Rated COP conditions
Approximately 20°C ambient temperature, heating 270 litres
of water from 15°C to 60°C.
Actual efficiency and energy consumption vary according to ambient temperature, inlet-water temperature, selected operating mode, system settings and household hot-water use.
iStore
Heat pump control
Online
Water temperature
56
°C
Heating target 60°C
Mode
ECO
Schedule
10:00
Solar heating window
10:00–16:00
6am
12pm
6pm
Heat pump
Online
Next schedule
Tomorrow, 10:00am
Solar-friendly
Daytime heating
Smart Wi-Fi control
Your hot water. On your schedule.
Connect your compatible iStore 270L to the iStore app to monitor and manage your heat pump from your phone.
Adjust temperature settings, review system status and schedule operation around your family routine, electricity tariff or strongest daytime solar-generation window.
Temperature control
Review and adjust compatible system temperature settings.
Smart scheduling
Program heating around household routines and electricity tariffs.
Solar-friendly operation
Schedule heating during periods of strong rooftop solar generation.
Apple and Android
Setup guidance is available for compatible phones and tablets.
Wi-Fi availability and app functions depend on the installed model and serial number. Compatible systems require access to a 2.4GHz Wi-Fi network.
The ultimate thermal battery
Turn rooftop solar into stored hot water.
Schedule the iStore 270L to heat during periods of strong daytime solar generation, converting surplus electricity into useful hot water for your household.
Smart energy redirection
Capture more of the energy your home produces.
Step 01
Rooftop solar
Your solar system produces electricity during the day.
Step 02
Efficient heating
iStore combines electrical input with renewable heat from
the air.
Step 03
Stored hot water
Thermal energy remains available for later household use.
Example daytime schedule
Make use of peak solar generation
Solar window active
6am
10am
12pm
4pm
6pm
Store energy as hot water
Use more of your solar generation at home.
Instead of exporting all surplus electricity to the grid, the iStore can be scheduled to convert some of that energy into hot water during the day.
Built-in scheduling
Set suitable heating windows around daytime solar
generation.
Thermal energy storage
Store up to 16.34kWh of usable thermal energy as hot
water.
Lower grid reliance
Reduce the electricity needed from the grid for everyday
water heating.
Potential grid-energy reduction
75% to 85%
When efficient heat-pump technology is combined with suitable rooftop solar generation and scheduling.
Actual solar utilisation and grid-energy savings depend on solar system size, solar generation, household electricity use, weather, hot-water demand, electricity tariffs and selected operating schedules.
Installation footprint
Integrated design
Tank and heat pump in one unit
Diagram is a simplified representation and is not intended for installation measurements.
Family capacity in one system
Larger storage. One integrated footprint.
The iStore 270L combines its storage tank and heat-pump technology into one streamlined outdoor unit, removing the need for a separate external compressor.
Its all-in-one configuration simplifies the system layout while providing the larger hot-water capacity required by busy households.
Unit width
640mm
Overall height
1956mm
Net weight
135kg
Outdoor installation
Designed for installation in an appropriately ventilated outdoor location.
Professional installation
Installation must be completed by appropriately licensed tradespeople.
Replacement applications
A practical replacement option for many conventional electric or gas storage systems.
Every installation is different
A site assessment confirms the correct position.
Your installer will assess ventilation, service access, drainage, plumbing, electrical supply and the requirements contained in the current installation manual.
Product dimensions and specifications should be confirmed against the current technical documentation before purchase or installation.
Engineered for efficient hot water
Smart technology. Working inside.
The iStore 270L uses a closed refrigeration cycle to collect renewable heat from the surrounding air and transfer that energy into the water stored inside its integrated tank.
Inside the iStore 270L
01
Evaporator
03
Compressor
04
Coil-wrapped tank
06
Smart control
Air-to-energy process
How the iStore turns ambient air into hot water.
-
01
Air enters the system
A fan draws surrounding air across the evaporator.
-
02
Refrigerant absorbs heat
Heat collected from the air causes the refrigerant to change from a liquid into a gas.
-
03
The compressor raises the temperature
The compressor pressurises the refrigerant, creating a much hotter gas.
-
04
Heat transfers into the water
Hot refrigerant moves through the condenser coil wrapped around the tank and transfers heat into the stored water.
-
05
Refrigerant returns to a liquid
After releasing its heat, the refrigerant cools and returns to the evaporator.
-
06
The cycle continues automatically
The process repeats until the selected target temperature is reached.
270L technical overview
Key system specifications
Refrigerant
R290
Rated input
0.85kW
Rated COP
Up to 4.82
Noise at 1m
≤46.6dB
View manuals and specifications
Specifications are based on published product information and stated test conditions. Confirm current technical data, model details and installation requirements before purchase.
Lower hot-water costs
Use less energy. Keep more in your pocket.
Water heating can represent a significant share of household energy use. Replacing a conventional water heater with an efficient iStore heat pump may substantially reduce the energy required to keep family-sized hot water ready.
The iStore advantage
See how much you could save
Lower running costs without compromising family hot water.
The iStore 270L draws renewable heat energy from the surrounding air, reducing its reliance on conventional electric or gas water heating.
Up to 70%
lower hot-water energy use
Up to $1,000
potential annual energy savings*
Up to 2.9t
fewer CO₂ emissions annually*
Estimated comparison
Estimated
Annual water-heating running costs
Running-cost comparison based on approximately 200 litres of daily hot-water consumption.
*Estimated savings vary according to household hot-water use, energy tariffs, existing water-heater type, solar generation, system settings, installation and local climate conditions.
Reduce the upfront cost
Rebates may make your upgrade more affordable.
Eligible heat-pump installations may qualify for federal Small-scale Technology Certificates and additional state-based incentives. Your available benefit depends on your location, installation and current program requirements.
Small-scale Technology Certificates
Eligible air-source heat-pump installations can create STCs under the Australian Government Small-scale Renewable Energy Scheme. Their value may be applied as an upfront discount.
- Available for eligible approved systems
- Certificate value may reduce the purchase price
- Commonly managed by the retailer or registered agent
Additional incentives may be available
Some states and territories offer additional support for replacing conventional electric or gas water heaters with efficient heat-pump technology.
- Availability depends on your location
- Existing water-heater type may affect eligibility
- Program values and requirements can change
Get the right advice before installation
Your installer or retailer can confirm which current incentives apply to your home and include eligible discounts in your quotation.
- Confirm the product is currently approved
- Use appropriately licensed installers
- Confirm all discounts before accepting the quote
Rebates vary by location and installation
Find out what incentives may apply to your home.
Request a quote from a local iStore reseller for current product pricing, installation costs and available incentives.
Eligibility, certificate values and available incentives vary by location, installation date, existing water-heater type, product, installer and current program rules. Always confirm current requirements before purchase.
Proven by Australian households
Award-winning hot water. Verified customer feedback.
Read independent feedback from Australian households using the iStore 270L, including experiences with hot-water performance, heating speed, temperature consistency and everyday operation.
ProductReview.com.au recognition
Winner of the ProductReview.com.au Hot Water Systems Award in 2026, continuing iStore recognition every year from 2021 through 2026.
Independent 270L customer reviews
4.8
overall 270L ProductReview rating
98%
positive customer ratings
6 years
recognised from 2021 to 2026
Trusted in homes across Australia.
ProductReview.com.au independently publishes customer feedback about the iStore 270L. Visit the official listing to read current ratings, detailed reviews and owner experiences.
Frequently rated categories
Value for money
Temperature consistency
Heating speed
Build quality
ProductReview.com.au feedback is supplied independently and is subject to ProductReview.com.au moderation and publishing policies. Ratings and review totals can change as new feedback is submitted.
270L product questions
Questions about the iStore 270L?
Find answers about household sizing, efficiency, recovery, installation, rooftop solar, Wi-Fi control and warranty support.
01 How many people is the iStore 270L suitable for?
The iStore 270L is generally suited to households of approximately three to six or more people, particularly homes with repeated showers, baths or higher daily hot-water demand.
Actual suitability depends on shower length, bath use, appliance demand, climate, plumbing and individual household habits. A local reseller can help confirm the appropriate system size.
02 How quickly does the 270L recover after heavy use?
The iStore uses high-output heat-pump technology to restore hot water quickly after showers, baths and other periods of heavy use. Under favourable operating conditions, its recovery rate can reach approximately 130 litres per hour.
Actual recovery time varies according to ambient temperature, inlet-water temperature, operating mode, target temperature and how much hot water has been used.
03 What does a COP of 4.82 mean?
Coefficient of Performance describes the relationship between the electrical energy consumed and the heating energy delivered.
A COP of 4.82 means the system can deliver approximately 4.82 units of heating energy for each unit of electricity consumed under the stated rated conditions. Actual efficiency changes with operating conditions.
04 Can the iStore 270L work with rooftop solar?
Yes. The system can be scheduled to operate during periods of strong daytime solar generation, helping convert surplus rooftop solar electricity into stored hot water.
Results depend on solar-system size, weather, household electricity use, hot-water demand and the selected heating schedule.
05 Where can the iStore 270L be installed?
The iStore 270L is designed for installation in a suitable, well-ventilated outdoor location. The installer must also allow for service access, drainage, plumbing, electrical supply and the clearances required by the current installation manual.
Installation must be completed by appropriately licensed tradespeople.
06 Does the iStore 270L include Wi-Fi control?
Current compatible models can connect to the iStore app for system monitoring, temperature settings and scheduling. Wi-Fi availability and available app functions depend on the installed model and serial number.
Compatible systems require access to a 2.4GHz Wi-Fi network. Check the product documentation or ask your reseller to confirm compatibility.
07 Is the 270L eligible for rebates or incentives?
Eligible approved heat-pump installations may create Small-scale Technology Certificates. Additional incentives may also be available through state or territory programs.
Eligibility and incentive values change. Confirm the current product approval, installation requirements and available discounts with your installer or retailer before purchase.
08 What warranty applies to the iStore 270L?
The iStore 270L is supported by a five-year comprehensive parts and labour warranty, subject to the current warranty terms, correct installation, required maintenance and applicable exclusions.
Keep your purchase and installation records and complete the warranty registration process after installation.
Award-winning heat pump hot water systems engineered for Australian conditions, lower running costs and dependable everyday performance.