Solahart 302SP
The Solahart 302SP is designed for medium-sized households, combining high-capacity solar water heating with corrosion-resistant technology. With its closed-circuit thermosiphon system, it’s perfect for areas with harsh water conditions.
Solahart 302SP Solar Water Heater: Key Attributes
Why the 302SP system is a smart choice
The Solahart 302SP is a solar hot water solution for medium-sized households of 3-5 people. Featuring a 302L tank, this system provides ample hot water while using closed circuit thermosiphon technology for superior corrosion protection, making it perfect for harsh water conditions. The system includes a TRV valve for safe operation and Super Shield Enamel for long-lasting durability. The SP Free Heat Series offers significant energy savings, with up to 80% reduction in water heating costs, all while reducing your carbon footprint.
Key Features:
- Capacity: 300-Litre tank, ideal for medium households (3-5 people).
- Closed Circuit Thermosiphon: Corrosion-resistant solar-powered water heating.
- TRV Valve: Pressure relief valve for smooth operation.
- Super Shield Enamel: Advanced corrosion protection for long-term durability.
- Energy Efficient: Save up to 65% on water heating costs.#
- Reduced CO2 Emissions: Save up to 2.3 tonnes of CO2 annually.#
Warranty:
- 10-year warranty on the collector and tank.*
- 5-year warranty on parts and labour.*
Collectors:
- 2 x SP Collectors - for efficient performance in medium to high solar gain areas.
Free Heat - 300F
How Roof Top Solar Systems Work Solar Operation
The 302SP solar system has its vitreous enamel lined solar storage tank installed on the roof directly coupled to the solar collectors. In the Closed Circuit Series, heat is absorbed by the collector and passed to the ‘Hartgard’ heat transfer liquid inside the collector. As the temperature of the ‘Hartgard’ increases, the hot fluid rises up through the collector by the Natural Thermosiphon Principle, into the heat exchanger jacket around the potable water storage tank. Here, the heat is transferred to the potable water, cooling the ‘Hartgard’ fluid. The cooler fluid is then forced back down into the collectors through the displacement action of further hot fluid rising up into the heat exchanger jacket.
Orientation of Solar Collectors
To help maximise system performance, solar collectors should be installed with an optimum orientation facing true north (in the southern hemisphere) or true south (in the northern hemisphere). Always check for true north or true south using a compass or other suitable device.
To help maximise system performance, solar collectors should be installed with an optimum inclination. This is equal to 90% to 100% of the local latitude angle when collectors are oriented within 60° of true north or true south, and between 10° and 20° if the collectors are oriented between 60° and 90° from the optimum orientation. Generally, improved summer performance is obtained from an angle of inclination less than the optimum angle and improved winter performance is obtained by an angle of inclination greater than the optimum angle. If the angle of inclination varies by 20° from the optimum angle, the solar collectors will receive about 10% less total annual solar radiation.
Frost/Freeze Protection
Solahart Closed Circuit Systems are protected against freezing or harsh water conditions by our exclusive ‘Hartgard’ fluid. ‘Hartgard’ is a blue, non-toxic, propylene glycol fluid which, when mixed with water, provides the Heat Transfer Fluid contained in the solar collectors and the heat exchanger jacket around the tank. ‘Hartgard’ is used to lower the freezing temperature of the Heat Transfer Fluid and so provides protection against freezing (Note: for the correct % of Hartgard in the Heat Transfer Fluid, refer to the section on Frost / Freeze Protection). ‘Hartgard’ is a special food grade solution and is the only solution permitted to be used in the closed circuit systems. Hartgard has been approved by the National Health and Medical Research Council of Australia.
Solar Boosting
In-Tank Boosting
An isolating switch is installed in the electrical meter box for an electrically in-tank boosted model. This should be left switched on to allow the booster heating unit to operate if required. The booster heating unit is for heating the water at times of low solar energy gain, such as during very cloudy or rainy weather, or during the colder months. The booster heating unit will only activate if heating is required and power is available from the switchboard. When the water is below the thermostat setting, the booster heating unit will turn on and heat the water. The booster heating unit will automatically turn off when the temperature of the water reaches the thermostat setting. If the water temperature drops below the setting again the booster will re-activate.
In-Series Gas Boosting
An in-series gas booster (also known as an continuous flow gas booster) can be installed between the solar water heater and the hot outlets in the house. This booster should be permanently active. The booster senses the temperature of the water passing through it: if the water temperature is above its temperature setting it does nothing; if below it will automatically heat the water up to the preset outlet temperature setting. This booster ensures hot water delivery for a variety of hot water demands without the need for user intervention while enabling maximum solar energy contribution to the water heating. For more information on this booster, consult the owner’s manual for the product.
Over-Temperature Protection System
The Closed Circuit Series solar water heaters have a means of controlling the maximum temperature of the water in the storage tank. These systems may be installed with a ‘HartStat’ valve located between the hot outlet of the collectors and the inlet to the tank heat exchanger. This valve closes when the tank has reached a sufficiently high temperature, thereby preventing further heat transfer to the tank, and thus limiting its temperature.
Solahart PowerStore
Why choose Solahart PowerStore®
Introducing Solahart PowerStore®, Australia’s first solar-smart electric water heater.
Solahart PowerStore® works with your solar power panels to capture excess solar energy and turns it into hot water rather than sending it back to the grid.
It's similar to a home battery in that it stores energy for later use, but it's more affordable. And because it minimises the amount of power you draw from the grid, it's a great way to reduce your energy bills.
Control
Maximise your solar power and stop worrying about low feed-in tariffsAssurance
Trust Solahart. Australia’s solar energy experts for over 65 years
Affordable Energy Storage
Get the benefits of home energy storage for a lower cost than a batterySolahart Warranty
Rest easy with a 10-year tank warranty for extra peace of mindMake the most of your sunshine
If the power generated from your solar panels isn’t used immediately, it’s sent back to the grid. Solahart PowerStore® is designed to intelligently harvest this excess power to generate hot water.
Conventional electric water heaters draw maximum power when their heating element is switched on. This usually happens in the morning and evening when solar panels are not fully productive, so hot water is mainly heated by power from the grid rather than using solar energy. PowerStore® monitors your electricity usage during the day and then diverts any excess solar power that is not being used by household appliances towards your water heater, rather than allowing it to be fed back into the grid.
# Solahart Warranty Details: 10/3/3 warranty. 10-year cylinder supply, 3-year cylinder labour, 3-year parts supply including labour; applies to a single family domestic dwelling only. For full details see Owner’s Guide & Installation Instructions.
A Water Heater Like No Other
Solahart PowerStore® is different to conventional water heaters in three important ways.
- It is designed to intelligently interact with your solar panels to divert excess solar power when it’s available for maximum efficiency.
- Unlike a standard water heater, it can work at varying power levels, so it is better suited to the variable power delivered from solar energy.
- It can heat water gradually to take advantage of the sunniest parts of the day.
See How it Works
Solahart PowerStore® Part 1: How Solar Power Works
Solahart PowerStore® Part 2: Heating Water With Solar Power
Solahart PowerStore® Part 3: Introducing PowerStore
¹Enhancing of your solar investment will vary depending upon the size of your solar power system, the amount of excess solar power available to the Solahart PowerStore system, your feed-in tariff and your hot water tariff.
*Solahart Warranty Details: PowerStore: 10/3/3 warranty; 10-year cylinder supply, 3-year cylinder labour, 3-year parts supply including labour; applies to a single-family domestic dwelling only. For full details see Owner’s Guide and Installation Instructions. Solar Ready: 10/3/2 warranty; 10-year cylinder supply, 3-year cylinder labour, 2-year parts supply including labour; applies to a single-family domestic dwelling only. All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1 year parts supply, 1 year labour.
Boosted NSW Government Incentives for Selected Heat Pumps
Boosted NSW Government Incentives for Selected Heat Pumps
Unlock Boosted NSW Government Incentives for Selected Heat Pumps
Now expanded to include Metro NSW residents!
For a limited time and while stocks last, eligible NSW residents can take advantage of boosted NSW Government incentives on selected Solahart Heat Pumps.
If eligible, your savings may depend on many factors, including the model type purchased, whether you are replacing a gas or electric system, your postcode, and your system size.
These boosted incentives are strictly limited in number, so contact your local Solahart dealer today to confirm your eligibility and potential savings. Installation must be completed by June 30th 2025.
Electric Replacement
| Model Number | System Size | Number of ESC's | Electric Replacement Boosted ESC Amount | Total Electric Replacement Boosted ESC Amount |
| 180HAV | Medium | 26 | $39.06 | $1,015.56 |
| 180HDC | Medium | 26 | $39.06 | $1,015.56 |
| 270HAV | Medium | 27 | $39.06 | $1,054.62 |
| 270QDR | Medium | 27 | $39.06 | $1,054.62 |
| 280HER | Medium | 27 | $39.06 | $1,054.62 |
| 325HAV | Medium | 24 | $39.06 | $937.44 |
Gas Replacement
| Model Number | System Size | Number of ESC's | Electric Replacement Boosted ESC Amount | Total Electric Replacement Boosted ESC Amount |
| 180HAV | Medium | 12 | $59.04 | $708.48 |
| 180HDC | Medium | 12 | $59.04 | $708.48 |
| 270HAV | Medium | 12 | $59.04 | $708.48 |
| 270QDR | Medium | 12 | $59.04 | $708.48 |
| 280HER | Medium | 13 | $59.04 | $767.52 |
| 325HAV | Medium | 9 | $59.04 | $531.36 |
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Terms and Conditions
*Eligibility criteria applies. Limited time offer available while stocks last to eligible NSW residents only on selected Solahart Heat Pumps. The number of certificates that can be created per system is based on its geographical location (zone) and varies with the type, size and model of the system installed. The value of an Energy Saving Certificate (ESC) is not fixed and varies depending on market factors. These calculations are based on a certificate value of $39.06 in Zone 3. The boosted ESCs are only available in NSW within Zone 3. Under current regulations, NSW Government incentives apply in the form of ESCs that can be used to offer a discount on the purchase of a solar or heat pump water heater (if eligible, conditions apply). ESCs have a variable market value and are subject to change. Installation must be completed by June 30th 2025.
^72 Months Interest-Free is only available for Solahart residential product purchases over $5,000. Available to approved applicants only and subject to completion of a satisfactory credit check upon application. A monthly account fee of $9.95 applies, and a one-off establishment fee may apply for new customers. Paying only the minimum monthly repayment may not repay the purchase within the interest free period. Any balance outstanding will be charged at the applicable standard variable interest rate of 25.9% per annum, as at 1 June 2023. Interest, fees and charges are subject to change. Terms & Conditions apply and are available on application. Additional charges may apply; see your contract for further details. Credit provided by Zip Money Payments Pty Ltd (ABN 58 164 440 993, Australian Credit Licence Number 441878).
Incentives For Residential Batteries In NSW
Incentives For Residential Batteries In NSW
NSW Government Changes to NSW battery incentives from 1 July 2025
The NSW Government battery discount can be claimed for battery installations up until Monday 30 June 2025. This discount cannot be combined with the Australian Government’s Cheaper Home Batteries Program discount which starts from Tuesday 1 July 2025. The NSW battery installation discount will no longer be available after 1 July 2025. However, the incentive to connect your battery to a Virtual Power Plant will increase from 1 July 2025 and can be combined with the Cheaper Home Batteries Program.The NSW Government home battery incentive program offers significant savings for residents and businesses, but is now only available until 30 June 2025. Eligible participants could receive between $770 and $1150 and $1600 and $2400 off the upfront installation cost of a household battery for homes and businesses with existing solar systems.
NSW Government Battery Incentive Details
Unlike a rebate, the discount on the installation cost of your battery is provided as an incentive to an accredited supplier. The accredited supplier will pass on the discount to you via your chosen local installer.
The incentive is proportional to the usable capacity of the battery in kilowatt-hours (kWh). Larger batteries will receive a larger incentive. If you’re eligible and until 1 July 2025, discounts range between:
- $770 and $1150 when you install a new 6.5 kWh battery
- $1600 and $2400 when you install a new 13.5 kWh battery
For homes and businesses without solar, the incentive can be included in a quote for a new solar and battery system installation.
The NSW Government battery discount can be claimed for battery installations up until Monday 30 June 2025. This discount cannot be combined with the Australian Government’s Cheaper Home Batteries Program discount, which begins on Tuesday 1 July 2025. From 1 July 2025, this NSW battery installation discount will no longer be available.
NEW: Larger incentive to connect to a Virtual Power Plant (VPP)
The incentive to connect your battery to a Virtual Power Plant will increase from Tuesday 1 July 2025.
This will almost double the upfront incentive you’ll receive. For example, the payment you receive for a 27 kWh battery will increase from around $800 to around $1,500.
This incentive can be combined with the Australian Government’s Cheaper Home Batteries Program discount.
For more information, visit the NSW Government page on Incentives for Residential Batteries.
Eligibility for NSW Battery Rebates & Incentives
To qualify for these incentives, you must:
- Have an existing solar system or be purchasing rooftop solar.
- Purchase a new battery.
- Use a certified installer
- Meet the requirements for eligible batteries.
How to Get Started
The battery incentives are available now. Contact your local Solahart dealer today to arrange an in-home quote.
Range of Batteries at Solahart
Adding solar battery storage to your solar power system allows you to store your unused energy so you can use it when you need it (at night, on low-sunlight days, when utility rates are more expensive or during blackouts). Batteries in our range include Tesla Powerwall, SolarEdge Home Battery, and GoodWe batteries.
Learn about our full range of energy storage solutions here.
Benefits of Installing Batteries in NSW
- Enhanced Grid Reliability: More batteries across NSW will make the grid more reliable and stable.
- Reduced Fossil Fuel Reliance: Helps reduce reliance on fossil fuels during peak demand periods.
- Environmental Impact: Contributes to reducing NSW’s emissions by 70% by 2035 and achieving net zero by 2050.
Wondering if a battery is right for you? Learn about the six factors to consider if you're thinking of installing a home battery storage system.
Get smart, switch to Solahart today
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Does the incentive money get paid to the customer or to Solahart?
The incentive is not a direct rebate to customers. It’s provided as an upfront discount to the accredited supplier that installs the battery and then it is passed onto the customer.
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What is an accredited supplier?
Accredited suppliers are also known as Accredited Certificate Providers (ACPs). These are businesses that have been accredited by the scheme administrator (IPART) to conduct specific installations and upgrades under the Peak Demand Reduction Scheme (PDRS). Solahart is an accredited supplier.
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Are there any requirements to be eligible for the battery incentives?
Yes, you’ll need to have solar installed on the premises, and use an accredited supplier under the Peak Demand Reduction Scheme (PDRS) to install the battery. If you don’t have solar, you can have the incentive priced into a new solar and battery system installation.
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What battery storage capacities are eligible for this incentive?
Batteries with storage between 2 and 28 kWh are eligible for this incentive. The incentive provided is proportional to the usable capacity of the battery.
Most households will find batteries well below 28 kWh to be sufficient for their needs. The national average energy use for a 5-person household is 25 kWh per day.
Some batteries can also be stacked to enable you to increase capacity later. Your local Solahart Dealer be able to provide more information on what capacity is best suited to your needs.
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Can I receive an incentive for a battery that is already installed?
The installation incentive is only available for new battery installations.
Batteries already installed may be eligible to receive a Virtual Power Plant (VPP) incentive, provided the battery has 6 years of the manufacturer's warranty remaining and meets the equipment requirements. Find out more here.
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Can I receive the incentive if I am off-grid?
No. The Peak Demand Reduction Scheme (PDRS) aims to reduce the load on the electricity grid. Off-grid batteries do not directly help reduce the load on the grid.
Solahart Atmos Eco 180HDC
Compact and efficient, the Solahart Atmos Eco 180HDC is a smart alternative to small electric water heaters, offering reliable performance even in colder climates.
Solahart Atmos® Eco 180HDC: Key Attributes
Why Atmos Eco is a smart choice
The Solahart Atmos® Eco 180HDC Heat Pump is a new-generation, 178-litre renewable water heater ideal for smaller households. Engineered to perform in a wide range of Australian conditions, it uses R513A refrigerant with a low Global Warming Potential (GWP) and advanced microchannel technology to provide fast, uniform water heating, even in ambient temperatures as low as -7°C.
This system is a smart, energy-efficient choice for homes where installing a conventional solar water heater may not be practical. It draws heat from the air to warm water without relying on direct sunlight, helping reduce your water heating energy use and carbon emissions.
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*Warranty Details
- 7 years cylinder supply
- 3 years cylinder labour
- 3 years sealed system supply and labour
- 2 year parts supply and labour
*The warranty periods above apply to installations in a single-family domestic dwelling only. For further details, please refer to the Owner’s Guide. See the Solahart warranty set out in the Owner’s Guide and Installation Instructions. For more details call Solahart Australia 1300 769 475.
Without limiting the warranty periods shown above, a 5-year whole-of-product warranty applies to the installation of a Solahart Atmos Eco 180HDC Heat Pump where:
a) A hot water rebate has been received under Solar Victoria’s Solar Homes Program for a heat pump water heater installed from 1 July 2023, and / or
b) Victorian Energy Efficiency Certificates (VEECs) have been created for a heat pump water heater installed from 1 February 2025.
For further details, call 1300 769 475. Proof of receipt of the rebate and / or proof of VEECs being created, i.e. installation quote showing number of VEECs and dollar value, plus proof of purchase (as applicable) must be produced at the time of the service call.All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1-year cylinder labour, 1-year parts, including labour.
1 See datasheet for detailed specifications.
2 Energy savings of up to 70% in Zone 3 based on TRNSYS modelling on hot water energy consumption when replacing an electric water heater of a similar size with a Solahart Atmos® Eco 180HDC Heat Pump. Any savings will vary depending upon your location, type of water heater being replaced, hot water consumption and fuel tariff.
Explore more Heat Pumps
Explore more
The efficient heat pump technology extracts energy from the surrounding air. Ambient warmth is used to convert the refrigerant within the sealed system into a gas. The gas is then compressed to generate even more heat, which then heats the water in the tank. What’s more, this process can work day or night, in sunshine and rain, all year round.
When hot water is drawn off, and cold water enters the tank, the thermostat activates the fan and the compressor. The operation of the compressor causes a pressure difference within the sealed refrigeration system. This pressure difference causes the refrigerant to move around the sealed system. The refrigerant enters the evaporator as a liquid. As the refrigerant absorbs heat from the atmosphere, it changes state, at low pressure, from a sub-cooled liquid to a super-heated vapour or gas (evaporates). The vapour then enters the compressor and obtains more heat, known as heat of compression, and passes into the heat exchanger as a super-heated vapour at high pressure.
As the refrigerant passes through the microchannel heat exchanger wrapped around the storage cylinder, it gives off heat, which is absorbed by the water inside the cylinder. As the refrigerant gives off heat, it cools and changes state back into a liquid (condenses). The refrigerant then enters the evaporator again, and the cycle is repeated. The resulting cold air is then discharged through the air outlets back into the atmosphere. This process continues whenever heating is required until the water in the storage tank reaches its hot water temperature set point.
Introducing Solahart Atmos Eco 180 Heat Pump
* An average Coefficient of Performance (COP) value of 4.9 was measured under test conditions with an ambient air temperature of 19˚C/15˚C (Dry Bulb/Wet Bulb) over the entire heat-up process, heating of the water from 10˚C to 60˚C during water heater operation and a power supply of 240 V~ 50 Hz. The Heat Pump average heating capacity in Watts and its water heating capacity in Litres / hour were calculated from the results of this test. The heat pump water heater performance tests were conducted to AS/NZS 5125.1:2014. Note that the actual COP of the product at any given time will be impacted by a number of factors, including the ambient air and cold-water inlet temperatures at the place of installation and time of day/season of operation.
The Coefficient of Performance (COP) for a heat pump is the ratio of how much useful heat it produces for water heating to the power input into the water heater. The higher the COP number, the more efficient the heat pump is.
WA Battery Rebate
WA Battery Rebate
WA Residential Battery Scheme – Save More with Solar Energy Storage
The Western Australian Government could be making it easier for households to take advantage of solar energy storage with the WA Residential Battery Scheme. This initiative, if enacted, offers rebates to help eligible residents invest in home battery systems, reducing reliance on the grid and maximising solar savings.
How the Battery Scheme Could Work
- Up to 100,000 households could be eligible for the WA Residential Battery Scheme.
- The WA Residential Battery Scheme, if enacted, is expected to complement the Federal Government’s Cheaper Home Batteries Program for a combined rebate of up to $5,000 for Synergy customers and $7,500 for Horizon Power customers.
- This means State-based rebates could now be up to $1,300 for Synergy customers ($130 per kWh of battery capacity) and up to $3,800 for Horizon Power customers ($380 per kWh of battery capacity) before administration fees and charges. In the first year, and with the assistance under the Federal Cheaper Home Batteries program, residents could be eligible to receive up to $5,000 and $7,500 respectively towards the cost of a 10kWh battery installation.
- Households will be required to participate in a Virtual Power Plant (VPP) to be eligible for the Scheme.
- Batteries installed before the commencement of the WA Battery Scheme will not be eligible for a rebate.
Find Out More
If you’re considering a home battery system and want to stay informed about the WA Residential Battery Scheme contact your local Solahart Dealer to find out more today. Whilst full details and eligibility criteria are yet to be confirmed by the WA Government, be among the first to know when the scheme opens and take advantage of this limited opportunity to reduce your energy costs and increase energy independence.
For the most up to date information, visit the WA Residential Battery Scheme website here.
From 1 July 2025, battery rebates are available under the WA Residential Battery Scheme to eligible Synergy and Horizon Power customers in Western Australia. Households are required to participate in a Virtual Power Plant (VPP) in order to receive this rebate. For further details, including full eligibility criteria, see www.wa.gov.au/organisation/energy-policy-wa/wa-residential-battery-scheme. The WA Scheme is complimentary to the Federal Government’s battery rebate under the Small-scale Renewable Energy Scheme.
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Solahart Atmos Eco 280HER
Designed for medium to large homes, the Solahart Atmos Eco 280HER is a powerful and eco-friendly hot water solution using ultra-low GWP refrigerant.
Solahart Atmos® Eco 280HER: Key Attributes
Why Atmos Eco is a smart choice
The Solahart Atmos® Eco 280HER Heat Pump is a high-performance, 280-litre system that offers a sustainable and efficient alternative to electric water heating. Using R290 refrigerant with an ultra-low Global Warming Potential (GWP), it’s designed to minimise your household’s environmental impact.
With a superior Coefficient of Performance (COP) of 5.2 and advanced microchannel heat transfer technology, the system delivers fast and uniform heating, even in colder climates or areas with harsh water.
Made in Australia, Atmos Eco 280HER combines robust durability with streamlined, user-friendly controls for dependable, year-round hot water.
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*Warranty Details
- 7 years cylinder supply
- 3 years cylinder labour
- 3 years sealed system supply and labour
- 2 year parts supply and labour
*The warranty periods above apply to a single-family domestic dwelling only. See the Solahart warranty set out in the Owner’s Guide and Installation Instructions. For more details call Solahart Australia 1300 769 475.
Without limiting the warranty periods shown above, a 5-year whole-of-product warranty applies to the installation of a Solahart Atmos Eco 280HER Heat Pump where:
a) A hot water rebate has been received under Solar Victoria’s Solar Homes Program for a heat pump water heater installed from 1 July 2023, and / or
b) Victorian Energy Efficiency Certificates (VEECs) have been created for a heat pump water heater installed from 1 February 2025.
For further details, call 1300 769 475. Proof of receipt of the rebate and / or proof of VEECs being created, i.e. installation quote showing number of VEECs and dollar value, plus proof of purchase (as applicable) must be produced at the time of the service call.
All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1-year cylinder labour, 1-year parts, including labour.
** Testing condition: 19°C/15°C (Dry bulb/Wet bulb), relative humidity of 66% and heating water from 15°C to 60°C.
# Energy savings of up to 73.9% are based on Australian Government approved TRNSYS simulation modelling using a medium load in Zone 3 and apply when replacing an electric water heater of similar size with a Solahart 280HER24 Heat Pump water heater. Any savings will vary depending upon your location, type of water heater being replaced, hot water consumption and fuel tariff. Before installation - seek advice as to suitability to household usage and tariffs. The impact on an electricity account will depend on the tariff arrangement of the water heater being replaced and where you live. The water heater is recommended for connection to an uninterrupted 24 hour continuous tariff power supply. Depending upon the size of the household and its hot water requirements and if the Electricity Retailer permits, an extended off-peak (overnight and day) or Extended time controlled power supply connection of a minimum 16 hours per day may also be suitable. Before purchase consult your energy provider for more information on cost comparisons.
^ Calculations based on 7 min showers at 42°C mixed water temperature in moderate climate, time of use tariff.
Explore more Heat Pumps
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The efficient heat pump technology extracts energy from the surrounding air. Ambient warmth is used to convert the refrigerant within the sealed system into a gas. The gas is then compressed to generate even more heat, which then heats the water in the tank. What’s more, this process can work day or night, in sunshine and rain, all year round.
When hot water is drawn off, and cold water enters the tank, the thermostat activates the fan and the compressor. The operation of the compressor causes a pressure difference within the sealed refrigeration system. This pressure difference causes the refrigerant to move around the sealed system. The refrigerant enters the evaporator as a liquid. As the refrigerant absorbs heat from the atmosphere, it changes state, at low pressure, from a sub-cooled liquid to a super-heated vapour or gas (evaporates). The vapour then enters the compressor and obtains more heat, known as heat of compression, and passes into the heat exchanger as a super-heated vapour at high pressure.
As the refrigerant passes through the microchannel heat exchanger wrapped around the storage cylinder, it gives off heat, which is absorbed by the water inside the cylinder. As the refrigerant gives off heat, it cools and changes state back into a liquid (condenses). The refrigerant then enters the evaporator again, and the cycle is repeated. The resulting cold air is then discharged through the air outlets back into the atmosphere. This process continues whenever heating is required until the water in the storage tank reaches its hot water temperature set point.
The Smart Way To Create Hot Water Out Of Thin Air
** Testing condition: 19°C/15°C (Dry bulb/Wet bulb), relative humidity of 66% and heating water from 15°C to 60°C.
Cheaper Home Batteries Program
Cheaper Home Batteries Program
Home Battery Rebate: What You Need to Know – and How Solahart Can Help
Save on a Home Battery with the New Government Rebate
From 1 July 2025, eligible Australians can access a federal rebate of up to $3,720 on a 10kWh battery system — making it more affordable than ever to store your solar energy and reduce your power bills.
Solahart is here to help you take full advantage of the Cheaper Home Batteries Program, with expert advice, premium battery solutions, and trusted installation.
How Much Is the Solar Battery Rebate?
The Cheaper Home Batteries Program offers up to $372 per usable kilowatt-hour (kWh) of battery capacity (before fees). After fees, the average customer saves approximately $330 per kWh — which could reduce the upfront cost of a 10kWh home battery by around $3,300
Who Is Eligible for the Cheaper Home Batteries Program?
You may qualify for the rebate if your battery system meets the following criteria:
- Between 5kWh and 100kWh in nominal capacity (Only the first 50kWh are rebate-eligible)
- Installed by a CEC-accredited battery installer
- Uses a Clean Energy Council–approved solar battery
- Capable of connecting to a Virtual Power Plant (VPP) (participation not required)
- Installed on a residential home, small business, or community building
- Connected to a new or existing solar PV system
- Installed for permanent use (not portable or resold)
- Not an electric vehicle or portable energy storage device
You may also upgrade or expand an existing battery system if it hasn’t previously received the rebate and the added capacity is at least 5kWh.
For full eligibility criteria, read Intended eligibility for the Cheaper Home Batteries Program from the Department of Climate Change, Energy, the Environment and Water.
What Can You Do Now?
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Book a Free Solar Assessment
If you don’t yet have solar, we’ll guide you through installation — batteries are only eligible when connected to a solar PV system.
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Explore Battery Options
Solahart offers a range of advanced battery systems, including options that are fully VPP-ready, helping you unlock even greater savings and energy independence.
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Review Your Quote
Our local Solahart team will confirm your eligibility and help you maximise your rebate.
Why Home Batteries Are a Smart Move
As more Australians embrace solar energy, home batteries are quickly becoming the next step towards smarter, more sustainable living. Here’s why installing a battery could be one of the best energy decisions you make:
- Maximise your solar investment
- Store your excess solar energy and use it day or night
- Reduce your energy bills and reliance on the grid
- Enjoy greater energy independence and backup during blackouts (blackout functionality may be required at an additional cost)
- Take part in a smarter, more sustainable energy future
Why Choose Solahart
As one of Australia’s most trusted names in solar, Solahart has been helping households take control of their energy bills for over 70 years. When it comes to battery storage – especially with new government rebates announced creating unprecedented demand – choosing the right partner is more important than ever. Here’s why thousands of Australians choose Solahart:
- Experience you can trust
- Premium battery solutions
- We are not just solar; we are part of a Smart Energy Ecosystem
- Warranties & Support you can rely on
- Tailored Interest-free finance available for eligible customers
Disclaimer
*Australian Government incentive: From 1 July 2025, incentives for batteries are available to eligible households under the Small-scale Renewable Energy Scheme (SRES). For further details, including full eligibility criteria, see https://cer.gov.au/batteries. Western Australia: From 1 July 2025, battery rebates are available under the WA Residential Battery Scheme to eligible Synergy and Horizon Power customers in Western Australia. Households are required to participate in a Virtual Power Plant (VPP) in order to receive this rebate. For further details, including full eligibility criteria, see www.wa.gov.au/organisation/energy-policy-wa/wa-residential-battery-scheme. The WA Scheme is complimentary to the Federal Government’s battery rebate under the Small-scale Renewable Energy Scheme. New South Wales: The amount shown above is not a deduction from this Quotation. Rather, it is an estimate of an incentive that eligible NSW homeowners may be able to receive under the NSW Government’s Peak Demand Reduction Scheme (PDRS). The BESS2 incentive requires connection of an eligible home battery to a Virtual Power Plant (VPP). Interested homeowners should contact their desired VPP operator to receive an accurate estimate and to access the incentive. For further details, including full eligibility criteria, see www.energy.nsw.gov.au/nsw-plans-and-progress/regulation-and-policy/energy-security-safeguard/residential-solar-battery-demand-response-eligibility.
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Solahart Atmos Frost 270QDR
The Solahart Atmos Frost 270QDR is a robust, frost-tolerant heat pump designed for year-round hot water in diverse Australian climates — now with Home Energy Management System (HEMS) compatibility.
Solahart Atmos® Frost 270QDR: Key Attributes
Why Atmos Eco is a smart choice
Built for Australia's most demanding conditions, Solahart Atmos® Frost 270QDR Heat Pump provides a reliable, energy-efficient alternative to traditional electric systems. With its frost-tolerant design, 270-litre capacity, and high-efficiency performance (COP of 4.4), it’s ideal for cold climates, harsh water areas, and tropical locations.
Now optionally compatible with Solahart HEMS (Home Energy Management System), the 270QDR can intelligently coordinate with your solar power system. This integration helps you maximise self-consumption of solar energy by scheduling water heating during off-peak or surplus solar periods, giving you more control over your energy use and costs.
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*Warranty Details
- 7 years cylinder supply
- 3 years cylinder labour
- 3 years sealed system supply and labour
- 2 year parts supply and labour
*The warranty periods above apply to a single-family domestic dwelling only. See the Solahart warranty set out in the Owner’s Guide and Installation Instructions. For more details call Solahart Australia 1300 769 475.
Without limiting the warranty periods shown above, a 5-year whole-of-product warranty applies to the installation of a Solahart Frost 270QDR Heat Pump where:
a) A hot water rebate has been received under Solar Victoria’s Solar Homes Program for a heat pump water heater installed from 1 July 2023, and / or
b) Victorian Energy Efficiency Certificates (VEECs) have been created for a heat pump water heater installed from 1 February 2025.
For further details, call 1300 769 475. Proof of receipt of the rebate and / or proof of VEECs being created, i.e. installation quote showing number of VEECs and dollar value, plus proof of purchase (as applicable) must be produced at the time of the service call.
All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1-year cylinder labour, 1-year parts, including labour.** Testing condition: 19°C/15°C (Dry bulb/Wet bulb) ambient air temperature, relative humidity of 62% and heating water from 8°C to 60°C.
^ Acrylonitrile Styrene Acrylate (ASA) is an amorphous thermoplastic with improved weather resistance.
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Explore moreHow Heat Pump Water Heaters Work
The efficient heat pump technology extracts energy from the surrounding air. Ambient warmth is used to convert the refrigerant within the sealed system into a gas. The gas is then compressed to generate even more heat which then heats the water in the tank. What’s more this process can work day or night, in sunshine and rain, all year round.
When hot water is drawn off and cold water enters the tank, the thermostat activates the fan and the compressor. The operation of the compressor causes a pressure difference within the sealed refrigeration system. This pressure difference causes the refrigerant to move around the sealed system. The refrigerant enters the evaporator as a liquid. As the refrigerant absorbs heat from the atmosphere it changes state, at low pressure, from a sub cooled liquid to a super-heated vapour or gas (evaporates). The vapour then enters the compressor and obtains more heat, known as heat of compression, and passes into the heat exchanger as a super-heated vapour at high pressure.
As the refrigerant passes through the micro-channel heat exchanger wrapped around the storage cylinder, it gives off heat which is absorbed by the water inside the cylinder. As the refrigerant gives off heat it cools and changes state back into a liquid (condenses). The refrigerant then enters the evaporator again and the cycle is repeated. The resulting cold air is then discharged through the air outlet louvers back to atmosphere. This process continues while ever heating is required until the water in the storage tank reaches a temperature of 60°C.
User-Friendly Smart Control
The Solahart Atmos-Air Heat Pump comes with an inbuilt touch LCD display. It is user-friendly and boasts a range of features, operation modes and settings:
- Clock
- Usable hot water quantity display
- Water temperature display
- Dual timer function
- Vacation Mode - conserve energy when you are on holidays
- Manual electric heating mode - For emergency hot water requirements in the event of the heat pump developing a fault
- Automatic de-icing Function - automatic de-icing in frost conditions
* COP – The Coefficient of Performance for a heat pump is the ratio of how much useful heat it produces for water heating to the power input into the water heater. The higher the COP number, the more efficient the heat pump is. The actual COP of the product at any given time will be impacted by a number of factors, including the ambient air and cold-water inlet temperatures at the place of installation and time of day / season of operation.
An Average Coefficient of Performance (COP) of 4.4 was measured under test conditions with an ambient air temperature of 19˚C/15˚C (Dry Bulb/Wet Bulb), heating of the water from 8˚C to 60˚C during water heater operation and a power supply of 240 V~ 50 Hz. The Heat Pump average heating capacity in Watts (and converted to kilowatts – kW) and its water heating capacity in Litres / hour were calculated from the results of this test.
Average Heat Pump Heating Capacity kW – This is how much heating power is put into the water during the heating cycle by the heat pump. It is expressed as an average due to the changes in heating power from the refrigeration cycle as the water is being heated and its temperature increases during the heating cycle.
* COP – The Coefficient of Performance for a heat pump is the ratio of how much useful heat it produces for water heating to the power input into the water heater. The higher the COP number, the more efficient the heat pump is. The actual COP of the product at any given time will be impacted by a number of factors, including the ambient air and cold-water inlet temperatures at the place of installation and time of day / season of operation.
An Average Coefficient of Performance (COP) of 4.4 was measured under test conditions with an ambient air temperature of 19˚C/15˚C (Dry Bulb/Wet Bulb), heating of the water from 8˚C to 60˚C during water heater operation and a power supply of 240 V~ 50 Hz. The Heat Pump average heating capacity in Watts (and converted to kilowatts – kW) and its water heating capacity in Litres / hour were calculated from the results of this test.
Average Heat Pump Heating Capacity kW – This is how much heating power is put into the water during the heating cycle by the heat pump. It is expressed as an average due to the changes in heating power from the refrigeration cycle as the water is being heated and its temperature increases during the heating cycle.
Streamline 413MCS07V
The Solahart 413MCS07V features a 410-Litre tank and three LCS collectors to deliver energy-efficient solar hot water for up to 7 people.
Streamline 413MCS07V: Key Attributes
The Solahart 413MCS07V is a powerful split system solar water heater built for large families or high-demand homes. It pairs a spacious 410-Litre ground-mounted tank with three high-efficiency LCS collectors, making it suitable for up to seven people.
Designed for Australia’s cooler regions, this system includes frost protection and can be safely installed up to 600 metres in elevation. Like all MDV models, it is not intended for use in areas with harsh water conditions. Backed by Solahart’s 5-year tank warranty, the 413MCS07V is a dependable, eco-friendly solution for large households.
Key Features / USPs:
- 410L tank for large families (up to 7 people)
- LCS solar collector for strong performance
- Enhanced frost protection for cold regions
- Altitude rated up to 600m
- Reduce energy consumption by up to 70%*
- Backed by Solahart's 5-year tank warranty
- Not suitable for poor water conditions^
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How Split System Solar Water Heaters Work
With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.
The Solahart 413MCS07V split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.
Solar Operation
The operation of the circulator is controlled by the combination of:
- the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
- the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
- the differential controller located in the solar control unit.
With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.
This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.
During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.
Over-Temperature Operation
The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.
If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.
Night Time Cooling Operation
The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.
If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.
Freeze Protection Operation
The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.
If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.
Standby Mode
The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.
* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 413MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 413CS07V and using a large load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 413MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 413CS07V and using a large load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
