Choosing the best solar hot water system in Australia in 2026 is not as simple as picking a tank size or choosing the cheapest roof-mounted package.

Solar hot water systems can be excellent in the right home, especially in Brisbane, the Gold Coast and South East Queensland where strong sunshine can make solar contribution worthwhile for households with steady hot water demand. But the right system depends on your roof, household size, tank location, booster type, collector layout, access, budget and whether your home is better suited to a split solar system or a close-coupled solar system.

JR Gas & Water supplies and installs solar hot water systems across Brisbane, the Gold Coast and nearby South East Queensland areas. This guide ranks the best solar hot water systems by category, splitting the results into:

• Best split solar hot water systems

• Best close-coupled solar hot water systems

• Best solar hot water brands

• Best solar hot water systems by household type

The brand order for this 2026 solar ranking is:

1. Envirosun

2. Rheem

3. Rinnai

4. Dux

Envirosun ranks first because it offers the strongest overall solar value across both split and close-coupled systems in the JR Gas & Water range. Rheem ranks second because it offers excellent brand support, proven solar options and strong premium picks. Rinnai sits third as a recognised hot water brand with useful solar options, while Dux sits fourth as a basic comparison option behind the stronger JR-preferred alternatives.

Quick Answer

The best overall solar hot water brand in this 2026 ranking is Envirosun, with the Envirosun AS315/40 solar hot water system ranking as the best overall split solar system and the Envirosun TSP+300/40 solar hot water system ranking as one of the best close-coupled solar options.

For premium brand confidence, Rheem is the strongest alternative, with the Rheem 52D300 solar hot water system ranking as the best close-coupled pick and the Rheem Loline 325 solar hot water system ranking as a strong split-system performer.

Rinnai is a good recognised-brand option for selected split and close-coupled solar installations, while Dux is a lower-ranked option that may suit basic comparison shoppers but should generally be weighed against Envirosun and Rheem first.

Best Solar Hot Water Systems 2026: Overall Rankings

Best Split Solar Hot Water Systems 2026

Split solar hot water systems use roof-mounted collectors with the storage tank installed at ground level. This makes them a strong choice for many Brisbane and Gold Coast homes where the customer wants solar performance without placing a full storage tank on the roof.

Split systems can suit:

• Homes with suitable roof collector space

• Customers wanting the tank at ground level

• Larger family households

• Homes where roof loading is a concern

• Properties where easier tank access is preferred

• Replacements of older split solar systems

• Customers comparing larger 315L, 325L and 400L options

Split Solar Ranking

Best Overall Split Solar System: Envirosun AS315/40

The Envirosun AS315/40 solar hot water system is the best overall split solar hot water system in this 2026 ranking.

It is a strong choice for homeowners wanting a practical split solar setup with a ground-level tank and roof-mounted collectors. The 315L capacity makes it suitable for many family homes, especially where the customer wants a larger solar storage option without putting the tank on the roof.

Why Envirosun AS315/40 Ranks First

The Envirosun AS315/40 ranks first because it offers one of the best combinations of capacity, layout flexibility and installed value in the JR Gas & Water solar range.

Its strengths include:

• Strong split-system layout

• Ground-level tank for easier access

• 315L family-friendly capacity

• Roof-mounted collector setup

• Good fit for Brisbane and Gold Coast homes

• Strong value compared with premium alternatives

• Practical replacement option for older split systems

• Good balance of performance and affordability

• Best overall Envirosun solar pick

• Strong option for customers wanting the tank off the roof

For many homes, this is the first split solar system to compare.

Who Should Choose Envirosun AS315/40?

The Envirosun AS315/40 may suit:

• Three to five person households

• Homes wanting split solar hot water

• Customers replacing an older split solar system

• Properties where a roof-mounted tank is not ideal

• Homes with suitable roof collector space

• Brisbane and Gold Coast family homes

• Customers wanting strong solar value

• Owner-occupiers wanting a long-term upgrade from electric storage

• Homes where ground-level tank access is preferred

Things to Consider

The Envirosun AS315/40 still needs the right site conditions.

Before choosing it, check:

• Roof orientation

• Collector space

• Shading

• Ground-level tank location

• Booster type

• Pipe run between tank and collectors

• Access for installation

• Household demand

• Whether 315L is the right size

• Whether a close-coupled system may be simpler

JR Verdict

The Envirosun AS315/40 is the best overall split solar hot water system in this guide. It is the strongest starting point for homeowners wanting a practical, family-sized split solar setup with strong installed value.

Best Premium Split Solar Performer: Rheem Loline 325

The Rheem Loline 325 solar hot water system is the best premium split solar performer in this ranking.

It is the stronger option for customers who want a trusted Rheem split solar system with excellent brand recognition, strong capacity and a premium replacement feel.

Why Rheem Loline 325 Ranks Highly

The Rheem Loline 325 ranks highly because it gives customers a strong Rheem-backed split solar option.

Its strengths include:

• Rheem brand confidence

• 325L storage capacity

• Split-system layout

• Ground-level tank

• Roof-mounted collectors

• Good option for larger family homes

• Strong premium replacement appeal

• Suitable for customers who prefer Rheem

• Practical option for homes replacing older solar systems

• Good support familiarity

Rheem is one of Australia’s most recognised hot water brands, and that matters for customers who value long-term service confidence and brand familiarity.

Who Should Choose Rheem Loline 325?

The Rheem Loline 325 may suit:

• Larger family homes

• Rheem-preferred customers

• Homes replacing older Rheem solar systems

• Customers wanting a premium split solar option

• Households with stronger daily hot water demand

• Properties where a ground-level tank is preferred

• Owner-occupiers wanting strong brand confidence

Things to Consider

The Rheem Loline 325 may cost more than some value-focused alternatives. If price is a major factor, compare it against Envirosun split systems before deciding.

JR Verdict

The Rheem Loline 325 is the best premium split solar performer in this ranking. It is the stronger choice for customers who want a trusted Rheem split system and are comfortable paying more for brand confidence.

Best Large-Capacity Value Split Solar: Envirosun AS400/40 and AS400/60

For larger households, the Envirosun AS400/40 solar hot water system and Envirosun AS400/60 solar hot water system are strong options to compare.

These systems suit homes needing more stored capacity than a 315L unit.

Why Envirosun AS400 Systems Are Worth Comparing

The Envirosun AS400 range is appealing because it gives larger households more stored solar hot water capacity while keeping the tank at ground level.

Its strengths include:

• Large 400L storage capacity

• Split-system design

• Strong fit for higher-demand households

• Tank remains at ground level

• Practical family upgrade

• Good option for larger homes

• Strong value within the large solar category

• Suitable for customers comparing cost against premium alternatives

Who Should Choose Envirosun AS400?

An Envirosun AS400 split solar system may suit:

• Larger families

• Homes with high hot water demand

• Households with multiple bathrooms

• Customers replacing larger solar systems

• Homes where 315L may be too small

• Properties with suitable collector space

• Customers wanting capacity without choosing the most premium brand

JR Verdict

The Envirosun AS400/40 and AS400/60 are strong large-capacity split solar options. They are best for larger households wanting Envirosun value and more stored capacity.

Best Recognised-Brand Split Alternative: Rinnai Sunmaster Split 315L Twin Panel

The Rinnai Sunmaster Split 315L Twin Panel solar hot water system is the best Rinnai split solar option in this ranking.

Rinnai is a well-known hot water brand, and this model gives customers a recognised-brand split solar pathway.

Why Rinnai Sunmaster Split 315L Ranks Here

The Rinnai Sunmaster Split 315L ranks behind Envirosun and Rheem, but it is still worth considering for selected homes.

Its strengths include:

• Recognised Rinnai brand

• 315L capacity

• Split-system layout

• Twin panel configuration

• Ground-level tank

• Suitable for family homes

• Useful option for Rinnai-preferred customers

• Practical replacement for selected older solar systems

Who Should Choose Rinnai Sunmaster Split?

This system may suit:

• Customers who prefer Rinnai

• Three to five person households

• Homes wanting split solar

• Properties replacing older Rinnai solar systems

• Customers wanting a recognised-brand alternative

• Homes with suitable roof space and tank location

JR Verdict

The Rinnai Sunmaster Split 315L is a useful recognised-brand split solar option, but in this JR ranking, Envirosun and Rheem sit ahead for overall preference.

Basic Split Solar Comparison: Dux Ecosmart 315L and 400L

Dux sits fourth in the overall brand order for this guide.

The Dux Ecosmart 315L solar hot water system and Dux Ecosmart 400L solar hot water system may suit selected comparison shoppers, but they sit below Envirosun, Rheem and Rinnai in this ranking.

Why Dux Ranks Lower

Dux can still be considered, but it is not the strongest JR-preferred solar choice.

Its strengths include:

• Established hot water brand

• Larger 315L and 400L options

• Solar system availability

• Basic comparison value for some customers

Its limitations include:

• Lower overall ranking against Envirosun and Rheem

• Weaker JR-preferred positioning

• Less compelling overall recommendation than higher-ranked options

• Better suited to comparison rather than first-choice selection

JR Verdict

Dux Ecosmart solar systems may suit selected buyers, but most customers should compare Envirosun, Rheem and Rinnai options first.

Best Close-Coupled Solar Hot Water Systems 2026

Close-coupled solar hot water systems place the storage tank and collectors together on the roof. This style is also commonly called a roof-mounted thermosiphon solar hot water system.

Close-coupled systems can suit homes where the roof structure, access and household requirements make a roof-mounted tank practical.

They are often chosen because they are:

• Straightforward in design

• Self-circulating in many configurations

• A good replacement for existing close-coupled systems

• Suitable where roof structure can support the tank

• Practical for homes wanting a simple solar layout

• Strong for customers who do not want a ground-level tank

Close-Coupled Solar Ranking

Best Overall Close-Coupled Value: Envirosun TSP+300/40

The Envirosun TSP+300/40 solar hot water system is the best overall close-coupled solar value pick in this 2026 ranking.

It is a practical roof-mounted thermosiphon solar hot water system with 300L storage, making it a strong fit for many family homes where close-coupled solar is suitable.

Why Envirosun TSP+300/40 Ranks First

The Envirosun TSP+300/40 ranks first because it offers a strong mix of capacity, simplicity and value.

Its strengths include:

• 300L close-coupled format

• Roof-mounted tank and collector setup

• Practical family capacity

• Strong value positioning

• Good option for replacing older roof-mounted solar systems

• Straightforward thermosiphon-style layout

• Strong fit for homes where roof loading is suitable

• Good balance of price and solar contribution

• Best Envirosun close-coupled pick

Who Should Choose Envirosun TSP+300/40?

This model may suit:

• Three to five person households

• Homes replacing older close-coupled solar systems

• Customers wanting roof-mounted solar storage

• Properties with suitable roof structure

• Homes where a ground-level tank is not preferred

• Budget-aware owner-occupiers

• Brisbane and Gold Coast homes with suitable sun exposure

• Customers wanting strong value from solar hot water

Things to Consider

Close-coupled systems need suitable roof conditions.

Before choosing this system, check:

• Roof strength

• Roof pitch

• Roof orientation

• Shading

• Access for installation

• Visual impact

• Booster requirements

• Household demand

• Whether a ground-level split tank would be easier to service

JR Verdict

The Envirosun TSP+300/40 is the best overall close-coupled value pick in this ranking. It is a strong choice for homes wanting practical roof-mounted solar hot water without moving into the highest premium price tier.

Best Premium Close-Coupled Pick: Rheem 52D300

The Rheem 52D300 solar hot water system is the best premium close-coupled solar pick in this guide.

It is the right choice for customers who want a roof-mounted solar system from one of Australia’s most recognised hot water brands.

Why Rheem 52D300 Ranks Highly

The Rheem 52D300 ranks highly because it combines close-coupled simplicity with Rheem brand confidence.

Its strengths include:

• Rheem brand backing

• 300L close-coupled solar layout

• Roof-mounted tank and collector setup

• Good family-home suitability

• Strong replacement for older roof-mounted solar systems

• Practical option where roof structure is suitable

• Strong brand support familiarity

• Good premium solar ownership appeal

For customers who want the reassurance of Rheem and a close-coupled solar layout, the Rheem 52D300 is the best starting point.

Who Should Choose Rheem 52D300?

The Rheem 52D300 may suit:

• Owner-occupied homes

• Customers who prefer Rheem

• Families wanting a 300L roof-mounted solar system

• Homes replacing older Rheem solar systems

• Properties with suitable roof structure

• Customers wanting strong brand confidence

• Homes where close-coupled solar is preferred over split solar

JR Verdict

The Rheem 52D300 is the best premium close-coupled solar hot water system in this ranking. It is the strongest choice where brand confidence matters more than choosing the cheapest solar option.

Best Higher-Collector Envirosun Close-Coupled Performer: Envirosun TS+300/60

The Envirosun TS+300/60 solar hot water system is another strong Envirosun close-coupled option.

It is best suited to customers wanting a roof-mounted 300L system with a stronger collector configuration than the simpler 300/40 option.

Why Envirosun TS+300/60 Is Worth Comparing

Its strengths include:

• 300L close-coupled storage

• Roof-mounted collector and tank setup

• Strong Envirosun value

• Useful option for homes with steady daily demand

• Good family-home suitability

• Stronger collector pathway than lower-spec options

• Practical replacement for older roof-mounted systems

JR Verdict

The Envirosun TS+300/60 is a strong close-coupled performer for customers wanting an Envirosun roof-mounted system with extra collector contribution. It is worth comparing against the TSP+300/40 and Rheem 52D300.

Best Recognised-Brand Close-Coupled Alternative: Rinnai Close-Coupled 330L Two Panel

The Rinnai close-coupled two panel 330L solar hot water system is the best Rinnai close-coupled option in this ranking.

It gives customers a recognised-brand roof-mounted alternative to Envirosun and Rheem.

Why Rinnai Close-Coupled 330L Ranks Here

Its strengths include:

• Recognised Rinnai brand

• 330L storage capacity

• Two-panel close-coupled layout

• Suitable for selected family homes

• Practical roof-mounted replacement option

• Useful for customers who prefer Rinnai

• Good comparison option against Rheem and Envirosun

Things to Consider

Rinnai ranks behind Envirosun and Rheem in this solar guide because Envirosun offers the strongest overall solar value and Rheem offers stronger solar brand confidence. Rinnai is still a useful choice where product fit, preference or replacement pathway makes sense.

JR Verdict

Rinnai close-coupled solar systems are useful recognised-brand alternatives, but most customers should compare Envirosun and Rheem first.

Basic Close-Coupled Comparison: Dux Ecosmart 250L

The Dux Ecosmart 250L solar hot water system sits lower in this guide.

It may suit selected customers comparing smaller solar options, but it is not one of the top JR-preferred solar picks.

JR Verdict

Dux solar hot water systems may be worth comparing in selected situations, but Envirosun, Rheem and Rinnai sit ahead in this 2026 ranking.

Split Solar vs Close-Coupled Solar: Which Is Better?

Neither split solar nor close-coupled solar is automatically better. The best choice depends on the property.

Choose a Split Solar System If

A split solar hot water system may suit if:

• You want the tank at ground level

• You want easier tank access

• Roof loading is a concern

• You have suitable roof collector space

• You are replacing an older split solar system

• You want larger tank capacity

• You prefer the visual look of panels only on the roof

• The home has strong daily hot water demand

Strong split systems include:

• Envirosun AS315/40

• Envirosun AS400/40

• Rheem Loline 325

• Rinnai Sunmaster Split 315L

Choose a Close-Coupled System If

A close-coupled solar hot water system may suit if:

• Your roof can support the tank and collectors

• You want a simple roof-mounted solar layout

• You are replacing an existing close-coupled system

• You do not want a ground-level tank

• The roof has good solar exposure

• The installation layout suits thermosiphon operation

• You want a practical family solar system

Strong close-coupled systems include:

• Envirosun TSP+300/40

• Rheem 52D300

• Envirosun TS+300/60

• Rinnai close-coupled 330L two panel

Brand Rankings: Envirosun vs Rheem vs Rinnai vs Dux

1. Envirosun

Envirosun ranks first overall because it offers the strongest mix of value, capacity, split-system options and close-coupled options in the JR Gas & Water solar range.

Best Envirosun Solar Models

Top Envirosun models include:

• Envirosun AS315/40

• Envirosun AS400/40

• Envirosun AS400/60

• Envirosun TSP+300/40

• Envirosun TS+300/60

Envirosun Is Best For

Envirosun may suit:

• Value-focused solar buyers

• Family homes

• Split solar replacements

• Close-coupled replacements

• Customers wanting strong solar capacity

• Homes comparing 315L and 400L split systems

• Customers wanting practical solar without paying only for brand prestige

JR Verdict

Envirosun is the best overall solar hot water brand in this 2026 ranking.

2. Rheem

Rheem ranks second overall but remains the strongest premium brand-backed solar option.

Best Rheem Solar Models

Top Rheem models include:

• Rheem 52D300

• Rheem Loline 325

• Rheem Loline 410

• Rheem 52L300

Rheem Is Best For

Rheem may suit:

• Customers wanting brand confidence

• Premium solar buyers

• Owner-occupied homes

• Homes replacing older Rheem solar systems

• Larger households

• Customers who value support familiarity

• Buyers comparing long-term brand strength

JR Verdict

Rheem is the strongest premium solar brand in this guide. It ranks below Envirosun overall because Envirosun offers stronger value across the range, but Rheem is the better pick for customers who prioritise brand confidence.

3. Rinnai

Rinnai ranks third in this solar ranking.

It offers useful split and close-coupled systems, especially for customers who prefer Rinnai or are replacing an existing Rinnai solar setup.

Best Rinnai Solar Models

Top Rinnai models include:

• Rinnai Sunmaster Split 315L Twin Panel

• Rinnai Prestige Split 315L Twin Panel

• Rinnai close-coupled 330L two panel

• Rinnai Sunmaster single panel 200L

Rinnai Is Best For

Rinnai may suit:

• Rinnai-preferred customers

• Homes replacing older Rinnai solar

• Selected split solar installs

• Selected close-coupled installs

• Customers wanting a recognised hot water brand

• Smaller homes with suitable Rinnai options

JR Verdict

Rinnai is a useful solar brand, but it ranks below Envirosun and Rheem in this guide.

4. Dux

Dux ranks fourth in this solar hot water guide.

Dux has solar options in the market, but it is not the strongest JR-preferred solar brand when compared with Envirosun, Rheem and Rinnai.

Dux Models to Compare

Dux options include:

• Dux Ecosmart 250L

• Dux Ecosmart 315L

• Dux Ecosmart 400L

Dux Is Best For

Dux may suit:

• Basic comparison shoppers

• Customers replacing an existing Dux system

• Selected budget-sensitive solar installs

• Homes where the product fit suits the site

• Customers who specifically prefer Dux

JR Verdict

Dux solar systems may suit selected situations, but most customers should compare Envirosun, Rheem and Rinnai first.

Best Solar Hot Water System by Household Type

Best Solar System for Most Family Homes

Best split option: Envirosun AS315/40
Best close-coupled option: Envirosun TSP+300/40

These are strong starting points for many family homes wanting practical solar value.

Best Solar System for Premium Brand Buyers

Best split option: Rheem Loline 325
Best close-coupled option: Rheem 52D300

These are best for customers who want Rheem brand confidence.

Best Solar System for Larger Families

Best split options:

• Envirosun AS400/40

• Envirosun AS400/60

• Rheem Loline 410

Larger families usually need more stored hot water and a collector layout that matches daily demand.

Best Solar System for Smaller Homes

Best options:

• Rinnai Sunmaster single panel 200L

• Rinnai Prestige single panel 180L

• Dux Ecosmart 250L

Smaller homes should avoid oversizing unless the household has higher-than-average hot water use.

Solar Hot Water Size Guide

Solar hot water sizing depends on household demand, roof conditions, booster type and system layout.

A 300L system can suit many family homes, while 315L and 400L systems are often better for larger or higher-demand households.

Electric Boosted vs Gas Boosted Solar

Solar hot water systems usually need a booster for cloudy weather, high demand and times when solar contribution is not enough.

Electric Boosted Solar

Electric boosted solar may suit:

• Homes without gas

• Existing electric solar replacements

• Customers wanting simpler energy supply

• Properties already set up for electric boosting

• Homes comparing solar against electric storage

Gas Boosted Solar

Gas boosted solar may suit:

• Homes with natural gas or LPG

• Customers wanting gas backup

• Properties replacing existing gas boosted solar

• Households wanting strong boost recovery

• Homes already using gas appliances

Gas work should always be completed by a licensed gas fitter. Electrical work should always be completed by a licensed electrician.

Solar Hot Water vs Heat Pump Hot Water

Many homeowners compare solar hot water and heat pumps because both are positioned as energy-efficient hot water options.

Solar Hot Water May Be Better If

Solar may suit if:

• The roof has strong sun exposure

• Shading is limited

• The household has steady daily hot water demand

• The customer wants to use direct solar thermal energy

• Roof collector space is available

• The home is replacing an older solar system

• The customer prefers solar collectors over heat pump technology

Heat Pump May Be Better If

A heat pump may suit if:

• Roof space is limited

• Shading is a problem

• Solar collector installation is difficult

• The home has solar PV

• A ground-level system is preferred

• The customer wants a simpler upgrade from electric storage

• Roof access or roof loading is a concern

JR Gas & Water can help compare solar hot water systems with heat pump hot water systems before you choose.

Solar Hot Water vs Electric Storage

Solar hot water can reduce reliance on purchased electricity when the home is suitable, while electric storage is simpler and usually cheaper upfront.

Solar May Be Better If

Solar may suit:

• Long-term owner-occupiers

• Homes with good sun exposure

• Families with steady hot water use

• Customers replacing older solar

• Homes wanting lower long-term energy use

• Customers willing to invest more upfront

Electric Storage May Be Better If

Electric storage may suit:

• Homes needing the simplest replacement

• Customers with lower upfront budget

• Poor roof orientation or heavy shading

• Properties with limited roof access

• Smaller homes with low demand

• Rental properties where solar complexity is not justified

Compare electric hot water systems if solar is not suitable.

Local Brisbane, Gold Coast and SEQ Solar Considerations

Solar hot water can suit many Brisbane and Gold Coast homes, but the installation needs to be assessed properly.

Local considerations include:

• Strong Queensland sun exposure

• Roof orientation

• Roof pitch

• Shading from trees or neighbouring buildings

• Tile vs metal roof access

• Roof structure and loading

• Coastal corrosion on the Gold Coast

• Storm and wind exposure

• Tank placement

• Booster type

• Long pipe runs

• Family hot water demand

• Access for maintenance

• Replacement of older solar systems

• Body corporate restrictions for townhouses or units

A solar system should not be chosen from tank size alone. The roof and household usage matter just as much as the brand.

When Should You Replace a Solar Hot Water System?

A solar hot water system may need replacement when it becomes unreliable, inefficient or uneconomical to repair.

Common signs include:

• Leaking tank

• Rust or corrosion

• No hot water

• Hot water only works with booster

• Solar collectors are damaged

• Pump failure on split systems

• Controller faults

• Poor solar contribution

• Repeated valve issues

• Roof leaks around old penetrations

• Booster problems

• Old age

• Repairs becoming frequent

• System no longer suits household size

JR Gas & Water can help with hot water repairs and servicing if you are unsure whether to repair or replace.

Repair or Replace Solar Hot Water?

Repair may make sense if:

• The tank is not leaking

• The system is not too old

• The issue is a pump, controller, valve or booster fault

• Parts are available

• The collectors are in good condition

• The repair cost is reasonable

• The system still suits household demand

Replacement may make sense if:

• The tank is leaking

• The collectors are damaged

• The system is heavily corroded

• Repairs are becoming frequent

• The system is very old

• The household needs more capacity

• The current system performs poorly

• The repair cost is close to replacement

• The roof layout or tank location needs improvement

If the old system has failed, it is worth comparing split solar, close-coupled solar and heat pump options before replacing like-for-like.

Common Solar Hot Water Buying Mistakes

Choosing Solar Without Checking the Roof

Solar hot water relies on roof collector performance. Shading, poor orientation, weak roof structure or difficult access can all affect the final result.

Choosing Close-Coupled Without Checking Roof Loading

A close-coupled system places the tank on the roof. That can be practical, but only where the roof structure and access suit the installation.

Choosing Split Solar Without Planning Tank Location

A split system keeps the tank at ground level, but the tank still needs a suitable location with access, drainage and pipework.

Undersizing the System

An undersized solar system may rely too heavily on boosting, reducing the benefit of choosing solar in the first place.

Comparing Only the Upfront Price

The cheapest solar quote is not always the best long-term option. Compare brand, capacity, collector layout, booster type, installation inclusions, roof access and expected household use.

What JR Gas & Water Can Help With

JR Gas & Water can help homeowners compare split and close-coupled solar hot water systems based on the home, roof, household size and budget.

Relevant options include:

• Solar hot water systems

• Envirosun AS315/40 split solar hot water system

• Envirosun AS400/40 split solar hot water system

• Envirosun TSP+300/40 close-coupled solar hot water system

• Rheem 52D300 close-coupled solar hot water system

• Rheem Loline 325 split solar hot water system

• Rinnai Sunmaster Split 315L Twin Panel solar hot water system

• Dux Ecosmart 315L solar hot water system

• Hot water repairs and servicing

• Service work pricing

If your current solar hot water system is leaking, unreliable, underperforming or due for replacement, send photos and model details through the JR Gas & Water quote request page for a practical recommendation.

FAQs About the Best Solar Hot Water Systems

What is the best solar hot water system in Australia in 2026?

The best overall solar hot water brand in this 2026 ranking is Envirosun, with strong split and close-coupled options across the JR Gas & Water range. Rheem is the best premium brand-backed alternative.

What is the best split solar hot water system?

The best split solar hot water system in this guide is the Envirosun AS315/40. It offers a strong balance of 315L storage, ground-level tank access, roof-mounted collectors and practical installed value for family homes.

What is the best close-coupled solar hot water system?

The best close-coupled value pick is the Envirosun TSP+300/40. The best premium close-coupled pick is the Rheem 52D300 for customers wanting Rheem brand confidence.

Is Envirosun better than Rheem for solar hot water?

Envirosun ranks first for overall value and range strength, while Rheem ranks first for premium brand confidence. Choose Envirosun if installed value is the priority. Choose Rheem if brand support and recognition matter more.

Is Rinnai solar hot water worth considering?

Yes, Rinnai solar hot water systems are worth considering for customers who prefer Rinnai or are replacing an existing Rinnai system. However, in this ranking, Envirosun and Rheem sit above Rinnai overall.

Is Dux solar hot water a good option?

Dux can suit selected solar replacements, but it ranks below Envirosun, Rheem and Rinnai in this guide. Most customers should compare the stronger JR-preferred options first.

Is split solar better than close-coupled solar?

Split solar is usually better when you want the tank at ground level or do not want extra tank weight on the roof. Close-coupled solar can be better when the roof is suitable and you want a straightforward roof-mounted system.

What size solar hot water system do I need?

Smaller households may suit 180L–250L solar systems, many families suit 300L–315L systems, and larger households may need 400L options. Usage habits, roof layout and booster type all matter.

Should I replace my old solar hot water system with solar again?

If the existing solar setup worked well and the roof conditions still suit solar, replacing it with another solar system can make sense. If roof access, shading or repair costs are an issue, compare heat pump options as well.

Is solar hot water good for Brisbane and the Gold Coast?

Yes, solar hot water can work very well in Brisbane, the Gold Coast and South East Queensland when the roof has suitable sun exposure, the system is correctly sized and the installation layout suits the property.

What is better: solar hot water or heat pump?

Solar hot water may be better where the roof is ideal and the household has steady demand. A heat pump may be better where roof space is limited, shading is an issue, or the home already has solar PV and suitable outdoor space.

Who installs solar hot water systems in Brisbane and the Gold Coast?

JR Gas & Water supplies and installs solar hot water systems across Brisbane, the Gold Coast and nearby South East Queensland areas, including Envirosun, Rheem, Rinnai and Dux options.

Final Verdict

The best solar hot water brand in this 2026 JR Gas & Water ranking is Envirosun.

For split solar hot water, the best overall pick is the Envirosun AS315/40.

For close-coupled solar hot water, the best value pick is the Envirosun TSP+300/40, while the best premium brand-backed pick is the Rheem 52D300.

The full JR Gas & Water solar brand ranking is:

1. Envirosun

2. Rheem

3. Rinnai

4. Dux

For most homeowners, start with Envirosun if you want the best overall solar value. Choose Rheem if you want the strongest premium brand confidence. Compare Rinnai if you prefer a recognised alternative. Consider Dux only after comparing the higher-ranked options first.

Need help choosing the right solar hot water system?

JR Gas & Water can help compare split and close-coupled solar hot water systems for your home, roof, household size and budget. Browse solar hot water systems, compare Envirosun solar hot water systems, or send photos and model details through the JR Gas & Water quote request page for a practical recommendation.