iStore 180L Heat Pump Hot Water System
The iStore 180L Heat Pump Hot Water System is a compact integrated air-source heat pump designed for smaller Australian households wanting to reduce the electricity used for water heating compared with conventional electric storage.
The current R290 model is identified as PASHW008-180LD-NM-R290 and combines a 180-litre storage cylinder, rotary compressor, R290 refrigerant, LCD controls, programmable timers and a one-shot electric booster in a narrow 540mm-wide package.
iStore currently positions the 180L model for approximately 2–4 people, depending on household hot-water demand. Shower length, bath use, fixture flow rates and concentrated periods of demand still need to be considered when selecting the system.
Installed Today can offer the iStore 180L as supply only or through eligible supplied-and-installed pathways in Brisbane and Gold Coast service areas, subject to product availability and the property's plumbing, drainage, electrical supply, access and installation conditions.
What Is the Current iStore 180L Model?
The current R290 model is PASHW008-180LD-NM-R290.
It replaces earlier-generation iStore 180L systems that used different technical specifications and refrigerant arrangements.
When comparing manuals, replacement parts or installation requirements, make sure the documentation specifically identifies the R290 model rather than an earlier PASHW008-180LD-NM generation.
How Many People Does the iStore 180L Suit?
iStore currently markets the 180L model for smaller households and describes it as suitable for approximately 2–4 occupants.
Smaller Homes
The 180L storage volume can suit households with moderate daily hot-water demand without moving to a larger 270L-class system.
Townhouses & Apartments
The narrow 540mm body makes the system relevant to properties where available ground-level installation space is limited.
Electric Storage Replacement
The system can provide an efficient replacement pathway for selected conventional electric storage water heaters where site conditions are suitable.
Occupant numbers are a sizing guide rather than a guarantee. High-flow showers, baths and concentrated morning or evening demand can increase the storage and recovery requirement.
iStore 180L Key Details
How Does the iStore 180L Heat Water?
A fan draws surrounding air across the evaporator, allowing the refrigerant circuit to collect thermal energy from the air.
The compressor increases the refrigerant pressure and temperature before the hot refrigerant passes through the condenser coil wrapped around the storage cylinder.
Heat transfers through the tank wall into the stored water, after which the refrigerant returns through the refrigeration cycle to collect more heat.
The process continues automatically until the target water temperature is reached.
How Much Energy Can the iStore 180L Save?
iStore states that its 180L heat pump can reduce hot-water energy use by up to approximately 70% compared with conventional electric hot-water systems under the manufacturer's stated comparison conditions.
This is an energy-use comparison, not a guaranteed electricity-bill reduction.
Actual household results vary with ambient temperature, incoming water temperature, electricity tariff, timer settings, hot-water demand and the system being replaced.
iStore 180L Heating Performance
The current R290 installation data lists a 2.5kW heating capacity for the 180L model.
The compressor itself has a listed electrical input of approximately 0.58kW and a running current of approximately 2.5A.
The appliance also includes a 1.0kW auxiliary electric booster.
iStore 180L R290 Specifications
| Specification | Current 180L R290 |
|---|---|
| Brand | iStore |
| Model | PASHW008-180LD-NM-R290 |
| System Type | Integrated air-source heat pump water heater |
| Tank Capacity | 180 litres |
| Household Guide | Approximately 2–4 people depending on usage |
| Overall Width | Approximately 540mm |
| Overall Height | Approximately 1956mm |
| Cold-Water Inlet Height | Approximately 60mm |
| Hot-Water Outlet Height | Approximately 1240mm |
| Empty Weight | Approximately 93kg |
| Refrigerant | R290 |
| Compressor Type | Rotary |
| Heating Capacity | 2.5kW |
| Compressor Power Input | 0.58kW |
| Compressor Running Current | 2.5A |
| Auxiliary Electric Booster | 1.0kW |
| Total Rated Power Input | 2.0kW |
| Total Rated Current Input | 8.3A |
| Power Supply | 240V AC |
| Rated Outlet Water Temperature | 60°C |
| Maximum Tank Temperature | Up to 75°C within the manufacturer working-range specification |
| Heat Pump Ambient Range | Approximately -5°C to 43°C |
| Air Volume | Approximately 700m³/h |
| Noise | Approximately 46–46.6 dB(A) at 1 metre depending on manufacturer test reference |
| Water Connections | 3/4 inch |
| PTR Valve | 850 kPa / 10kW / 99°C |
| Pressure Reduction Valve | 500 kPa maximum as specified by iStore |
| ECV Setting | 700 kPa where applicable |
| Control | LCD controller with timer and electric-booster functions |
What Electrical Supply Does the iStore 180L Need?
The current installation data lists the 180L for a 240V electrical supply, with approximately 2.0kW total rated input and 8.3A rated current.
The electrical arrangement must comply with the appliance instructions and be installed or altered by appropriately licensed electrical trades where fixed electrical work is required.
The existing circuit should not automatically be assumed suitable simply because the previous water heater used electricity.
Does the iStore 180L Have an Electric Element?
Yes. The current R290 installation information lists a 1.0kW auxiliary electric booster.
The owner controls describe the booster as a one-shot heating function. Once the relevant target temperature is reached, the manual booster automatically switches out rather than remaining permanently enabled.
Normal efficient operation is intended to favour the heat-pump refrigeration cycle rather than rely continuously on direct electric-element heating.
Can the iStore 180L Be Scheduled?
Yes. The controller provides programmable start and stop timers for normal ECO-mode operation.
This can help households schedule heating around:
- Expected rooftop-solar generation
- Time-of-use electricity tariffs
- Household hot-water routines
- Preferred daytime operating windows
A timer is optional rather than mandatory.
Does the iStore 180L Have Wi-Fi?
iStore's current marketing material describes the 180L as Wi-Fi-ready, while its product information also notes that Wi-Fi availability depends on the applicable model pathway.
Current iStore support material provides app-control guidance for compatible systems and states that compatibility can depend on the installed model and serial number.
For catalogue accuracy, timer control should be treated as a standard feature, while app-based Wi-Fi control should be confirmed against the actual unit being supplied.
What Refrigerant Does the iStore 180L Use?
The current model uses R290 refrigerant.
R290 is propane refrigerant and is classified as flammable, so refrigeration work and installation requirements must follow the manufacturer's current safety instructions.
Any servicing of the sealed refrigerant circuit should be completed by appropriately qualified personnel.
What Climate Range Can the iStore 180L Operate In?
The current R290 installation documentation lists normal compressor operation from approximately -5°C to 43°C ambient temperature.
As with any air-source heat pump, heating capacity and recovery performance change as surrounding air conditions change.
Warmer ambient air generally provides more usable heat for the refrigeration cycle than colder air.
How Long Does the iStore 180L Take to Heat a Tank?
iStore currently describes typical full-tank heating time as approximately 4–5 hours, depending on ambient temperature, incoming water temperature and operating conditions.
This should be treated as a guide rather than a guaranteed recovery time.
Recovery can vary throughout the year and will also depend on how much hot water remains in the tank when the heating cycle starts.
How Much Space Does the iStore 180L Need?
The 540mm appliance width is only the cylinder footprint. The heat-pump section needs additional surrounding clearance for airflow and maintenance.
The current R290 installation manual identifies key positioning allowances of approximately:
- 500mm on each side of the appliance
- 50mm behind the appliance
- 100mm above the appliance
- Clear air inlet and discharge pathways
- Suitable access for servicing
The 180L arrangement has its heat-pump air inlet and discharge positioned on opposite sides of the upper section of the unit.
Where Should the iStore 180L Be Installed?
iStore currently presents the 180L as suitable for an appropriately ventilated outdoor installation.
Installed Today's standard heat-pump installation pathway is based on a suitable external, ground-floor position with required airflow, drainage, support and service access.
Any proposal to install the system in an enclosed or unusual position should be assessed against the current R290 manufacturer instructions before purchase.
Does the iStore 180L Produce Condensate?
Yes. Moisture condenses on the evaporator while heat is being extracted from the surrounding air.
The appliance captures this water in its condensate tray and discharges it through the condensate drain line.
iStore notes that in very humid conditions condensate production can reach several litres per day.
A suitable drain route should therefore be confirmed before installation.
What Water Pressure Requirements Apply?
iStore's current installation and warranty documentation specifies a 500kPa pressure reduction valve immediately downstream of the cold-water non-return isolation valve unless an appropriate 500kPa pressure-reduction arrangement already exists at the property's mains supply.
The manufacturer also specifies:
- 850kPa pressure and temperature relief valve
- 700kPa expansion control valve where required
- 500kPa maximum pressure-reduction arrangement
- 3/4-inch hot and cold water connections
What Relief Valves Does the iStore 180L Use?
The water heater uses an 850kPa, 10kW, 99°C PTR valve.
The PTR valve provides the required relief pathway during normal thermal expansion and abnormal pressure or temperature conditions.
An expansion control valve can also be required depending on the jurisdiction and installation arrangement. iStore identifies a 700kPa ECV in its current R290 plumbing instructions where applicable.
Both relief-valve discharge arrangements require suitable drainage.
Does the iStore 180L Require a Tempering Valve?
Yes. iStore's current owner documentation specifies an approved tempering valve because the storage water can exceed 50°C.
The tempering arrangement limits the heated water supplied to applicable personal-hygiene fixtures to the required delivery temperature.
When replacing an existing hot water system, the installer should assess whether an existing tempering valve remains suitable or whether a compatible new valve kit is required.
How Does the iStore Manage Stored-Water Hygiene?
The current 180L owner manual describes an anti-legionella control strategy that uses compressor heating to bring a defined portion of the tank to at least 60°C as part of normal system operation.
This function operates through the appliance controls and does not remove the need for correct installation, servicing and temperature control at downstream fixtures.
What Maintenance Does iStore Recommend?
The manufacturer specifies ongoing maintenance of the storage cylinder, relief valves, condensate line and air path.
Recommended maintenance includes periodic checking of the PTR valve, keeping the air inlet and discharge clear, checking condensate drainage and following the scheduled servicing requirements for the cylinder and anode system.
The current owner manual also specifies more frequent anode attention where water quality has elevated dissolved solids.
iStore 180L Warranty
iStore markets the current 180L with a five-year comprehensive parts and labour warranty, subject to the manufacturer's warranty conditions.
The component warranty table gives the following detail for qualifying domestic installations:
| Component | Parts | Labour |
|---|---|---|
| Glass-Lined Tank | 5 years | 5 years |
| Refrigeration Components | 5 years | 5 years |
| Controller & Sensor Leads | 5 years | 5 years |
| Sacrificial Anode & PTR Valve | 1 year | 1 year |
| Consumable Items | 1 year | 1 year |
iStore also requires warranty registration within the period specified in its warranty terms and requires the system to be installed according to its plumbing, electrical and pressure-control instructions.
Buy the iStore 180L Supply Only
Choose supply only where you already have appropriately licensed trades arranged and require the heat pump itself.
The unit-only price does not automatically include:
- Plumbing installation
- Valve kit
- Tempering valve
- Electrical alterations
- New electrical circuit or connection changes
- Condensate drainage alterations
- Support-base work
- Old-system removal or disposal
- Difficult-access handling
- Other site-specific installation requirements
The installer should use the current R290 documentation matching the actual unit supplied.
iStore 180L Supplied & Installed
Eligible Brisbane and Gold Coast customers can select a supplied-and-installed pathway where the property and selected installation scope are suitable.
Plumbing Check
Incoming pressure, PRV, ECV requirements, tempering arrangement, pipework and relief drainage need to suit the iStore installation.
Electrical Check
The existing 240V electrical supply needs to suit the current 2.0kW total rated input and appliance connection requirements.
Airflow & Access
The property needs sufficient surrounding clearance, condensate drainage, a suitable base and safe access for the 93kg appliance.
iStore 180L Installation in Brisbane & Gold Coast
Installed Today can provide iStore heat-pump installation pathways across eligible Brisbane and Gold Coast service areas, subject to product availability and the property's installation conditions.
Additional work can apply where the property requires new valves, electrical alterations, drainage changes, extra pipework, a new base, relocation or difficult-access handling.
Can the iStore 180L Be Run During Solar Generation?
Yes. The built-in timers can be used to schedule heating during selected daytime periods where this suits the household and rooftop-solar generation profile.
This can help a property use more of its own daytime electricity for water heating.
The result depends on available solar generation, other household loads, weather, timer settings and hot-water demand.
Can the iStore 180L Qualify for Heat Pump Incentives?
Eligible heat-pump water heaters can qualify for Small-scale Technology Certificates and may also qualify for other programs where the current product and installation satisfy the applicable rules.
Certificate quantities and incentive values can change with the installation date, postcode, model approval and scheme requirements.
Current eligibility should therefore be checked when the system is ordered rather than treating a historic certificate quantity as a permanent product specification.
Why Choose the iStore 180L?
The current iStore 180L combines a relatively narrow 540mm footprint with 180L of storage, R290 refrigeration technology, timer scheduling and electric-booster support.
Its manufacturer household guide of approximately two to four people makes it particularly relevant where a larger 270L system would provide unnecessary storage capacity.
Its main installation considerations are adequate airflow, the manufacturer-required pressure-reduction arrangement, tempering, condensate drainage, suitable electrical supply and enough service access around the heat-pump section.
Questions About the iStore 180L Heat Pump
What Is the Current Model Number?
The current R290 model is PASHW008-180LD-NM-R290.
Is the iStore 180L Still a Current Product?
Yes. iStore currently lists the 180L R290 within its active heat-pump range.
What Is the Tank Capacity?
The system stores 180 litres.
How Many People Is It For?
iStore currently describes the 180L as suitable for approximately 2–4 people, depending on household demand.
What Are the Dimensions?
Approximately 540mm wide x 1956mm high.
How Much Does It Weigh?
The manufacturer lists approximately 93kg empty.
What Refrigerant Does It Use?
The current model uses R290.
What Is the Heating Capacity?
The current R290 installation data lists approximately 2.5kW.
What Is the Compressor Power Input?
Approximately 0.58kW.
Is 0.58kW the Maximum Appliance Input?
No. The current installation data lists approximately 2.0kW total rated power input when the complete appliance specification is considered.
What Is the Rated Current?
The current installation table lists approximately 8.3A total rated current.
What Size Is the Electric Booster?
The current R290 specification lists a 1.0kW auxiliary electric booster.
What Is the Normal Water Temperature?
The current performance table lists a 60°C rated outlet water temperature.
What Is the Maximum Tank Temperature?
The current installation working-range information lists a maximum tank temperature of approximately 75°C.
Does It Need a Tempering Valve?
Yes. iStore's manufacturer documentation specifies an approved tempering valve for the installation.
What Is the Operating Temperature Range?
The compressor operating range is approximately -5°C to 43°C ambient.
How Loud Is It?
Current iStore material lists approximately 46 to 46.6 dB(A) at one metre, depending on the manufacturer test reference.
How Long Does It Take to Heat?
iStore describes typical full-tank heating as approximately 4–5 hours, depending on conditions and starting water temperature.
Does It Have a Timer?
Yes. The LCD controller allows programmable heating windows.
Can It Be Scheduled Around Solar PV?
Yes. The timer can be used to schedule heating into suitable daytime solar-generation periods.
Does It Automatically Divert Surplus Solar?
No. Timer scheduling alone is not automatic proportional solar diversion.
Does It Have Wi-Fi?
Wi-Fi availability should be confirmed against the actual model and serial being supplied. iStore currently provides app support for compatible systems, but its manufacturer material also describes different Wi-Fi availability pathways.
What Clearances Does It Need?
The current R290 installation guide identifies approximately 500mm on each side, 50mm behind and 100mm above, together with unrestricted air inlet and discharge paths.
Does It Need Condensate Drainage?
Yes. Normal heat-pump operation produces condensate that must be directed to a suitable drain.
What PTR Valve Does It Use?
The current documentation specifies an 850kPa / 10kW / 99°C PTR valve.
Does iStore Require a Pressure-Reduction Valve?
Yes. Its current installation and warranty instructions specify a 500kPa pressure reduction valve unless the property already has an appropriate 500kPa pressure-reduction arrangement at the mains supply.
What ECV Rating Is Listed?
iStore lists approximately 700kPa where an expansion control valve is applicable.
What Is the Warranty?
The main glass-lined tank, refrigeration system and listed controller or sensor components are covered for 5 years parts and labour under the applicable domestic warranty terms.
Does Every Component Have Five Years?
No. The current warranty table lists the sacrificial anode, PTR valve and consumable items at 1 year parts and labour.
Can I Buy It Supply Only?
Yes. Supply-only ordering is suitable where you already have appropriately licensed installation trades arranged.
Can Installed Today Install It?
Eligible Brisbane and Gold Coast properties can select a supplied-and-installed pathway subject to product availability and the site's plumbing, electrical, drainage, access and clearance requirements.
Is the iStore 180L Right for Your Home?
The iStore PASHW008-180LD-NM-R290 is primarily aimed at smaller households wanting a compact integrated heat pump with 180L storage.
Its current manufacturer specifications include R290 refrigerant, 2.5kW heating capacity, 0.58kW compressor input, 1.0kW electric booster, 2.0kW total rated input, timer control and a 540mm-wide body.
Before ordering, check household hot-water demand, electrical suitability, the 500kPa pressure-reduction requirement, tempering-valve arrangement, airflow clearances, condensate drainage, support base and delivery access.
For supply only, arrange appropriately licensed trades. For eligible Brisbane and Gold Coast properties, select the matching supplied-and-installed pathway and any required valve, electrical, drainage, base, disposal or access add-ons before checkout.
Tempering valve information:
Where a hot water system is capable of delivering water above 50°C, a compliant tempering valve must be installed to control the temperature delivered to personal hygiene fixtures such as showers, baths, basins, and bathroom outlets. This helps reduce the risk of scalding and assists with meeting plumbing compliance requirements.
A tempering valve blends hot and cold water to deliver a safer controlled outlet temperature to required fixtures. The hot water unit itself may store water at a higher temperature, but the water delivered to personal hygiene outlets must be controlled where required by plumbing regulations.
If your property already has a suitable, compliant tempering valve installed, your licensed plumber can assess whether it is appropriate for use with the new hot water system. Existing valves may not always be suitable due to age, condition, compliance requirements, valve type, location, or system compatibility.
If a compliant tempering valve is not already installed, or if the existing valve is unsuitable, one must be supplied and installed by a licensed plumber as part of the hot water installation.
Tempering valves are not automatically included with every supply-only hot water unit unless specifically selected, listed as included, or purchased as part of a suitable valve kit. If a tempering valve is required, please purchase the appropriate valve kit with your order or arrange for your licensed installer to supply and install the correct tempering valve on site.
It is the customer’s responsibility to ensure the installation is completed by appropriately licensed trades and that all required valves, fittings, electrical work, plumbing work, and compliance requirements are allowed for as part of the installation.
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