JR GAS & WATER INSTALLER ASSESSMENT
Our Solar Hot Water Installer Verdict
This is the part of the product page we consider most important. It is our assessment of the product from the installer's side: construction, collector and cylinder positioning, solar pipework, boosting, commissioning and ongoing support, rather than a repeat of the specification sheet.
Local Hot Water Installation Areas
View all hot water service areas🏷️ Brand – Envirosun
🔢 Model Number – AS315/40SE
📦 Volume – 315L
📏 Width – 620mm
📐 Height – 1765mm
🌍 Manufactured In – Australia
🛠️ Cylinder / Heat Exchange Material – Steel
🛡️ Cylinder / Heat-Exchange Warranty – 5 Years
🔇 Noise Level – NA dBa
⚖️Dry Weight – 93kg
⚡ Energy Source – Solar📡 WiFi Controller Built-in or Compatible –
⏲️ Built-In Timer – No
💡 LED/LCD Status Indicator –
📊 Coefficient of Performance (COP) –
Envirosun AS315/40 Installation Brisbane & Gold Coast
JR Gas & Water supplies and installs the Envirosun AS315/40 active split solar hot water system across eligible Brisbane and Gold Coast service areas. It is a split solar system that keeps the hot water storage tank at ground level while using roof-mounted flat-plate solar collectors to capture heat from the sun.
The current Envirosun AS315/40Se uses a 320 litre nominal storage tank with two E20HS solar collectors and active pumped circulation. The electric-boosted version uses a 2.4kW booster and provides 187 litres of boost capacity, making it a practical option for households wanting substantial solar storage without moving to Envirosun's larger 420 litre AS400 platform.
JR approaches the AS315/40 as an installation system rather than simply a tank-and-panel package. Roof orientation and access, collector position, ground-level tank space, solar pipework, electrical services, boosting and the existing hot water installation all need to suit the property.
Envirosun AS315/40 Supply & Installation at a Glance
Product Type
Active split solar hot water system with a ground-level storage tank and roof-mounted collectors.
Storage Capacity
320L nominal storage in the current AS315/40Se manufacturer specification.
Solar Collectors
Two Envirosun E20HS flat-plate collectors with active pumped circulation.
Installation Area
Professional supply and installation across eligible Brisbane, Gold Coast and surrounding South East Queensland areas.
Who Is the Envirosun AS315/40 Best For?
Family Hot Water Demand
The AS315/40 provides 320L nominal storage and sits below the larger 420L AS400 models. It can suit households wanting meaningful storage capacity without automatically stepping up to the largest active split tank.
Ground-Level Tank Installation
The storage tank remains at ground level while only the solar collectors are installed on the roof. This can make the tank easier to access for servicing and avoids carrying the weight of stored water on the roof.
Solar Replacement or Upgrade
The AS315/40 can suit replacement of an existing split solar system or conversion from another hot water technology where the property's roof, plumbing, electrical services and tank location are suitable.
Is the Envirosun AS315/40 Right for My Home?
A Good Choice If...
You want active split solar hot water, have suitable roof space for two collectors, have a practical ground-level tank position and want more storage than a smaller solar system provides without moving to Envirosun's 420L AS400 range.
Consider Another Option If...
Your roof receives limited useful sunlight, collector installation is impractical, ground-level tank space is restricted or your household demand would be better matched to a smaller or larger system. A heat pump, electric storage or another solar configuration may make more sense on some properties.
JR Should Check First If...
You are converting from gas or electric hot water, changing the booster arrangement, relocating the system, have difficult roof access, need unusually long solar pipe runs or are unsure whether the existing plumbing and electrical infrastructure can be reused.
How Many People Does the Envirosun AS315/40 Suit?
Envirosun lists the broader AS active split range, covering 320L to 420L storage, as suitable for approximately three to six people. That range applies across multiple AS models rather than defining an exact occupant number for the AS315/40 alone.
The AS315/40 has 320L nominal storage and 187L of electric boost capacity, but correct household sizing depends on more than litres. Shower duration, shower flow rates, bathrooms, bath use, simultaneous demand, dishwasher and laundry use, solar contribution and the timing of hot water consumption all affect performance.
JR should therefore match the AS315/40 to actual household demand rather than assuming every household with the same number of occupants uses hot water in the same way.
How Does the Envirosun AS315/40 Work?
The AS315/40 separates the solar collectors from the storage tank. Two E20HS flat-plate collectors are installed on the roof, while the VE315 storage tank remains at ground level.
A small circulation pump transfers water between the collectors and storage tank. Envirosun's DeltaSol B controller uses temperature sensors at the collector and tank and activates circulation when useful solar heat is available.
The basic process is straightforward: sunlight heats the roof collectors → the circulation system transfers that captured heat to the ground-level tank → the tank stores the heated water → hot water is supplied to the home.
When available solar energy is not enough to meet household demand, the electric booster can provide additional heating.
Key Features of the Envirosun AS315/40
320L Nominal Storage
The current AS315/40Se provides 320L nominal storage using Envirosun's VE315 storage tank.
Two E20HS Collectors
The system uses two flat-plate E20HS collectors, each measuring approximately 1,235 × 2,000mm.
Active Pumped Circulation
A circulation pump moves water between the roof collectors and ground-level storage tank rather than relying on a roof-mounted storage cylinder.
DeltaSol B Controller
The electronic controller monitors collector and tank temperatures and operates the circulation system when solar heat can be transferred efficiently.
2.4kW Electric Booster
The current electric-boosted AS315/40Se uses a 2.4kW booster with 187L boost capacity.
STC Eligible
The Envirosun AS range is listed by the manufacturer as Clean Energy Regulator accredited and eligible to create STCs where scheme requirements are met.
Envirosun AS315/40 Specifications
| Specification | Details |
|---|---|
| Brand | Envirosun |
| Model | AS315/40Se |
| Product Type | Active split solar hot water system |
| Nominal Storage Capacity | 320L |
| Tank Model | VE315/E24/V-DM |
| Tank Footprint | 620 × 620mm |
| Tank Height | 1,765mm |
| Tank Empty Mass | 93kg |
| Tank Full Mass | 414kg |
| Collectors | 2 × E20HS flat-plate collectors |
| Collector Footprint | 1,235 × 2,000mm each |
| Collector Height | 70mm each |
| Collector Empty Mass | 27.5kg each |
| Collector Full Mass | 29.2kg each |
| Approx. Roof Footprint | 2,270 × 2,050mm |
| Ground System Footprint | 782 × 617mm |
| Controller | DeltaSol B |
| Circulation | Active pumped circulation |
| Electric Booster | 2.4kW |
| Electric Boost Capacity | 187L |
| CER Code | AS315/40/O/E24/E20HS-DM |
What Is Required to Install the Envirosun AS315/40?
An AS315/40 installation needs suitable conditions both at roof level and at the ground-mounted storage position. Requirements vary depending on whether the system is replacing another split solar unit or being installed as a conversion from a different hot water technology.
Roof construction, access, pipe-run length, drainage, electrical condition, relocation and existing system type can change the installation scope.
What's Included With Envirosun AS315/40 Installation?
Standard Installation
The selected JR installation package covers the applicable standard labour and materials shown in the live product selector. Depending on the chosen package, this may include removal of the existing unit, tank placement, collector installation, pipework, valves and electrical connection work.
Compliance & Commissioning
The completed installation is checked and commissioned for correct operation, including the solar circulation system, controller, plumbing connections, booster and applicable safety components.
Possible Additional Work
Difficult roof access, elevated work, long pipe runs, system relocation, drainage changes, electrical upgrades, new circuits, unusual collector mounting or significant changes from the existing system can require additional work or a separate quotation.
How Much Does Envirosun AS315/40 Installation Cost?
Current Envirosun AS315/40 supplied-and-installed pricing is shown in the live product and installation selector above. Keeping pricing within the live commercial area ensures customers see the current product price, package choices and available installation options.
Final installation cost depends on the existing hot water system, whether the work is a like-for-like solar replacement or a conversion, roof access, collector mounting, pipework, valves, drainage, electrical requirements, tank relocation and any other site-specific work.
Replacing an existing compatible active split solar system can be more straightforward than converting a conventional electric or gas hot water system because a conversion requires the roof collector circuit and associated solar components to be incorporated into the property.
Envirosun AS315/40 Installation Brisbane
JR Gas & Water supplies and installs the Envirosun AS315/40 across eligible Brisbane service areas. When replacing an existing split solar system, JR can assess whether the existing tank location, collector area, solar pipework and electrical services are suitable for the new AS315/40 or require alteration.
For Brisbane properties converting from an electric or gas system, the installation needs more planning than a standard ground-mounted cylinder replacement because the AS315/40 requires two roof-mounted solar collectors as well as the ground-level storage tank. Available roof area, solar access, safe roof access, pipe-routing distance and booster supply can all affect the installation package.
JR also services surrounding South East Queensland areas including Logan, Ipswich, Moreton Bay and Redlands, subject to current service availability and the requirements of the individual job.
Envirosun AS315/40 Installation Gold Coast
Gold Coast AS315/40 installations require enough suitable roof area for the two E20HS collectors and a practical ground-level position for the 320L storage tank. Existing solar replacements can often retain elements of the previous layout where those components and locations remain appropriate, but that should be confirmed rather than assumed.
Where the system is being installed as part of a renovation or hot water technology change, the route between the collectors and tank becomes particularly important. Solar flow and return pipework, electrical services, drainage and future servicing access all need to be considered as part of the finished installation.
JR's Gold Coast installation approach matches the system and package to the actual property conditions rather than treating every solar hot water replacement as identical.
Can the Envirosun AS315/40 Replace My Existing System?
Replacing Split Solar
An existing split solar installation can provide the closest replacement pathway, but tank dimensions, collector mounting, pipework, valves, controller wiring and electrical arrangements still need to be checked.
Replacing Close-Coupled Solar
The AS315/40 moves the storage cylinder to ground level, so replacing a roof-mounted tank-and-collector system generally changes both the equipment layout and connecting pipework.
Replacing Electric or Gas Storage
Conversion is possible on suitable properties, but roof collectors and the active solar circulation system must be added. This makes the installation more involved than a simple like-for-like cylinder replacement.
Replacing Another Brand
The previous brand does not need to be Envirosun. Replacement depends on physical dimensions, roof suitability, plumbing, electrical services and overall installation compatibility.
Which Envirosun Active Split System Do I Need?
The electric-boosted Envirosun AS range includes the AS315/40Se, AS400/40Se and AS400/60Se. The main differences are storage capacity and collector quantity.
| Model | Storage | Collectors | Boost Capacity | Electric Booster |
|---|---|---|---|---|
| AS315/40Se | 320L | 2 × E20HS | 187L | 2.4kW |
| AS400/40Se | 420L | 2 × E20HS | 253L | 2.4kW |
| AS400/60Se | 420L | 3 × E20HS | 253L | 2.4kW |
The AS315/40 is therefore the smaller-storage option in the current AS electric range. The AS400/40 adds greater storage without adding another collector, while the AS400/60 combines the 420L tank with three collectors. The right model depends on household hot water demand, available roof area and the intended installation.
How Efficient Is the Envirosun AS315/40?
The AS315/40 is designed to use solar energy as the primary water-heating source whenever usable heat is available at the collectors, reducing reliance on the electric booster.
Actual electricity use varies with household hot water consumption, solar exposure, weather, collector orientation, inlet water temperature and booster operation. For that reason, a fixed running-cost figure should not be treated as representative of every household.
The system is also eligible to generate Small-scale Technology Certificates where current scheme rules are met. STC quantities and values change over time and depend on factors including installation date and geographic location, so the applicable benefit should be taken from current installation pricing rather than hard-coded into this page.
How Does the Envirosun AS315/40 Compare With Similar Options?
| Feature | AS315/40Se | AS400/40Se | AS400/60Se |
|---|---|---|---|
| Nominal Storage | 320L | 420L | 420L |
| Collector Type | E20HS | E20HS | E20HS |
| Collector Quantity | 2 | 2 | 3 |
| Boost Capacity | 187L | 253L | 253L |
| Electric Booster | 2.4kW | 2.4kW | 2.4kW |
| Tank Footprint | 620 × 620mm | 705 × 705mm | 705 × 705mm |
| Tank Height | 1,765mm | 1,705mm | 1,705mm |
| Typical Reason to Consider | Smaller active-split storage option | Greater storage with two collectors | Greater storage and larger collector array |
The AS315/40 is generally the model to compare when 320L storage is more appropriate than the 420L AS400 tank. The larger models may make more sense where greater stored-water capacity or additional collector area is justified by household demand and the installation site.
Envirosun AS315/40 Installation FAQs
How much does Envirosun AS315/40 installation cost?
Current supplied-and-installed pricing is shown in the live product selector above. Final cost depends on the selected installation package, existing hot water system, roof access, pipework, valves, drainage, electrical requirements, relocation and any non-standard work.
Can JR Gas & Water install the Envirosun AS315/40 in Brisbane?
Yes. JR supplies and installs the AS315/40 across eligible Brisbane service areas, subject to roof suitability, safe access, suitable tank placement and the installation requirements of the property.
Can JR install the Envirosun AS315/40 on the Gold Coast?
Yes. The AS315/40 is available for installation across eligible Gold Coast service areas where the roof, ground-level tank location, pipework and electrical arrangements are suitable.
Is the Envirosun AS315/40 actually a 315L system?
The product is named AS315/40, but Envirosun's current specification lists the AS315/40Se at 320L nominal storage. The model number should not be treated as the current published storage capacity.
How many collectors does the AS315/40 use?
The current AS315/40Se uses two E20HS flat-plate solar collectors. Each collector has a manufacturer-listed footprint of approximately 1,235 × 2,000mm.
Does the AS315/40 have an electric booster?
Yes. The current electric-boosted AS315/40Se uses a 2.4kW booster and has 187L of manufacturer-listed electric boost capacity.
Can the AS315/40 replace another brand of solar hot water system?
Yes, where the property and installation are compatible. Tank location, roof collector mounting, pipework, electrical services, valves and access need to suit the new Envirosun equipment.
Can the AS315/40 replace an electric hot water system?
Potentially. Conversion requires suitable roof space for the collectors, solar flow and return pipework and the relevant control and electrical services, so it is more involved than replacing one ground-mounted electric tank with another.
Does the AS315/40 storage tank go on the roof?
No. The storage tank is installed at ground level. Only the solar collectors are roof-mounted, with a pump moving water through the solar circuit.
How much roof area does the AS315/40 need?
Envirosun lists an approximate roof footprint of 2,270 × 2,050mm for the AS315/40 system. Additional space or access may be required depending on roof construction and the mounting layout.
Is the Envirosun AS315/40 eligible for STCs?
Yes, the AS range is listed by Envirosun as Clean Energy Regulator accredited and STC eligible. The number and value of certificates depend on the applicable scheme rules, installation date and location.
What if my installation is not standard?
JR can assess non-standard work separately. Difficult roof access, long pipe runs, unusual collector mounting, relocation, electrical upgrades or conversion from another hot water technology may require a different package or quotation.
Envirosun AS315/40 Warranty and Maintenance
Manufacturer Warranty
For qualifying residential original owner-occupiers, Envirosun currently publishes a 10-year product warranty and 2-year labour warranty for systems purchased from 26 June 2026, subject to its current warranty terms, installation requirements and exclusions.
JR Lifetime Warranty Eligibility
The current JR product listing identifies the Envirosun AS315/40 as Lifetime Warranty eligible. JR's applicable workmanship or service warranty is separate from the manufacturer's Envirosun product warranty and remains subject to JR's current terms.
Ongoing Maintenance
The tank, collectors, circulation equipment, controller, valves, booster and plumbing should remain serviceable and be maintained in accordance with current Envirosun instructions. Warranty conditions should also be checked before servicing or replacement work is undertaken.
Why Choose JR Gas & Water for Envirosun AS315/40 Installation?
JR Gas & Water specialises in hot water supply, replacement and installation across South East Queensland and has completed more than 10,000 hot water installations. JR is QBCC licensed and services Brisbane, the Gold Coast and surrounding service areas.
The AS315/40 requires more than simply positioning a tank. Collector layout, roof access, solar circulation, pipework, electrical boosting and commissioning all affect the finished installation. JR matches the selected installation pathway to the actual property rather than assuming every split solar job requires the same work.
Compare Solar Hot Water Systems & Installation Options
Compare the AS315/40 with JR's current hot water and Envirosun ranges before choosing the final replacement system.
Install the Envirosun AS315/40 With JR Gas & Water
The Envirosun AS315/40Se is a 320L active split solar system designed for suitable properties wanting a ground-mounted storage tank combined with two roof-mounted solar collectors. It provides less storage than the AS400 models while retaining the same two-collector configuration used by the AS400/40Se.
Before installation, the main checks are roof suitability, collector position, tank location, solar pipework, access, electrical supply and booster requirements. Where the property fits JR's online package conditions, use the live product selector above to choose the appropriate installation package and booking option. More complex replacements and conversions can follow JR's quote pathway.
Solar hot water systems are an efficient and environmentally friendly way to heat your water, using energy from the sun to reduce electricity or gas consumption. To continue operating efficiently and reliably, they require regular maintenance and servicing.
Like any hot water system, manufacturers recommend routine maintenance to maximise system performance, protect key components and support your manufacturer's warranty.
Homeowner Maintenance – Every 6 Months
Every six months we recommend carrying out a simple visual inspection of your solar hot water system.
Homeowners should:
- Carefully operate the Pressure & Temperature Relief (PTR) Valve.
- Operate the Expansion Control Valve (ECV) (where fitted).
- Check for water leaks around the storage tank and pipework.
- Inspect visible solar pipe insulation for deterioration.
- Ensure solar collectors are free from excessive dirt, leaves and debris where safely accessible.
- Check for signs of corrosion or rust.
- Listen for unusual noises from the system or circulating pump (where fitted).
Why is this important?
Regular operation of the PTR and ECV valves helps prevent mineral build-up that can cause the valves to seize or leak.
Keeping collectors and surrounding components clean allows the solar system to operate as efficiently as possible, while early detection of leaks or damaged insulation can prevent larger problems from developing.
Important: Always follow your manufacturer's instructions when operating safety valves, as hot water will discharge during testing. Do not climb onto your roof to inspect or clean collectors. If you're unsure, contact a licensed plumber.
JR 6-Month Solar Hot Water Health Check
Recommended Service – $99
Our professional inspection helps ensure your solar hot water system continues operating safely and efficiently while identifying issues before they become costly repairs.
Our technician will:
- Inspect the complete hot water system.
- Check for leaks and corrosion.
- Test the PTR valve.
- Test the ECV (where fitted).
- Inspect exposed solar pipework and insulation.
- Check storage tank condition.
- Inspect booster operation (electric or gas).
- Check circulating pump operation (where fitted).
- Inspect controller operation (where applicable).
- Confirm system heating performance.
- Inspect valves, fittings and pipework.
- Identify components showing signs of wear.
Service Price: $99
Routine inspections help maximise solar efficiency, reduce energy costs and minimise the likelihood of unexpected breakdowns.
Recommended 5-Year Major Service
Current Price: $449
Most solar storage hot water systems benefit from scheduled replacement of key components to maintain reliable performance and extend the life of the storage tank.
Our comprehensive 5-Year Service includes:
- Replacement of the sacrificial anode (where fitted).
- Replacement of the Pressure & Temperature Relief (PTR) Valve.
- Replacement of the Expansion Control Valve (ECV).
- Inspection of the solar collectors.
- Inspection of solar pipework and insulation.
- Inspection of circulating pump and controller (where fitted).
- Inspection of booster operation.
- Full operational testing.
- Leak and corrosion inspection.
Why These Components Matter
Sacrificial Anode
Most vitreous enamel-lined solar storage tanks contain a sacrificial anode.
The anode gradually corrodes instead of the steel storage tank, protecting it from internal rust. Once the anode has been consumed, the tank itself begins to corrode, which can eventually lead to leaks and tank failure.
Replacing the anode at the recommended interval is one of the best ways to extend the life of your hot water system.
Pressure & Temperature Relief (PTR) Valve
The PTR valve protects the storage tank by safely relieving excessive pressure and temperature.
Mineral deposits and normal wear can prevent the valve from operating correctly over time, making routine testing and replacement essential.
Expansion Control Valve (ECV)
Where fitted, the ECV controls pressure created as water expands during heating.
Maintaining the ECV helps reduce stress on the storage tank and plumbing system, contributing to a longer service life.
Solar Collectors & Pipework
Solar collectors capture the sun's energy to heat water, while insulated pipework transfers that heat to the storage tank.
Keeping collectors unobstructed and ensuring pipe insulation remains in good condition helps:
- Maximise solar efficiency.
- Reduce reliance on electric or gas boosting.
- Lower energy costs.
- Improve overall system performance.
If Your Hot Water System Isn't Working
Before arranging a service, check the following:
- Ensure power is switched on (for electric boosted systems).
- Confirm the gas supply is on (for gas boosted systems).
- Check circuit breakers and safety switches where applicable.
- Verify the booster has not been turned off.
- Inspect for visible water leaks.
- Ensure exposed solar pipe insulation has not been damaged.
- Check for controller fault codes (where fitted).
- Listen for unusual noises from the circulating pump (where fitted).
- Remember that several cloudy days may reduce solar heating, causing the booster to operate more frequently.
If your system is still not producing adequate hot water, contact JR Gas & Water for professional diagnosis and repair.
General Signs Your System May Need Attention
Arrange a service if you notice:
- Reduced hot water availability.
- Booster operating more frequently than usual.
- Water leaking from the tank or pipework.
- Constant dripping from relief valves.
- Visible corrosion.
- Damaged or deteriorated pipe insulation.
- Pump noise or failure (where fitted).
- Controller fault codes.
- Rust-coloured or dirty water.
- Unusual noises during operation.
Early servicing can often prevent more expensive repairs and extend the life of your solar hot water system.
Protect Your Warranty & Maximise System Life
Routine maintenance helps ensure your solar hot water system continues operating safely, efficiently and reliably.
Following the manufacturer's recommended maintenance schedule may also assist in maintaining warranty coverage.
Failure to maintain your system may result in:
- Premature tank corrosion.
- Reduced solar efficiency.
- Higher electricity or gas consumption.
- Leaking or seized safety valves.
- Unexpected loss of hot water.
- Shortened system lifespan.
- Possible reduction or loss of manufacturer warranty, depending on the manufacturer's maintenance requirements.
Preventative maintenance is one of the best ways to protect your investment, reduce operating costs and maximise the life of your solar hot water system.
Please note: Maintenance requirements vary between manufacturers and models. Always refer to your owner's manual for the maintenance schedule applicable to your solar hot water system. JR Gas & Water services all major solar hot water brands in accordance with manufacturer recommendations where applicable.
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