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.
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JR GAS & WATER LOCAL INSTALLATION
Local Hot Water Installation Areas
View all hot water service areas🏷️ Brand – Envirosun
🔢 Model Number – AS250/40
📦 Volume – 250L
📏 Width – mm
📐 Height – mm
🌍 Manufactured In – Australia
🛠️ Cylinder / Heat Exchange Material – Steel Enamel
🛡️ Cylinder / Heat-Exchange Warranty – 7 Years
🔇 Noise Level – dBa
⚖️Dry Weight – kg
⚡ Energy Source – 📡 WiFi Controller Built-in or Compatible –
⏲️ Built-In Timer –
💡 LED/LCD Status Indicator –
📊 Coefficient of Performance (COP) –
ENVIROSUN SOLAR HOT WATER INSTALLATION
Envirosun AS250/40 Installation Brisbane & Gold Coast
JR Gas & Water supplies and installs the Envirosun AS250/40 Active Split Solar Hot Water System across eligible Brisbane, Gold Coast and surrounding South East Queensland service areas while this configuration remains available.
The AS250/40 is a split pumped solar hot water system with the storage cylinder installed at ground level and two roof-mounted solar collectors above. A circulation pump moves water between the collectors and storage tank when useful solar heat is available.
The legacy AS250/40 configuration used Envirosun's VE250 vitreous-enamel storage tank and two E20BC flat-plate collectors providing approximately 4m² of nominal collector area. It was available with electric or gas boosting depending on the exact system configuration.
Envirosun AS250/40 at a glance: the AS250/40 is a legacy 250-class Active Split solar configuration with a ground-level vitreous-enamel tank, two roof-mounted collectors and pumped solar circulation. The published electric version used a 259L tank, 2.4kW electric booster and 167L boost volume. JR currently lists the AS250/40 for approximately four-person household demand.
Envirosun AS250/40 Supply & Installation at a Glance
System Type
Active split solar system with pumped circulation between roof collectors and ground-mounted storage.
Storage
Legacy manufacturer documentation lists approximately 259L storage for the electric AS250/40 configuration.
Collector Area
Two E20BC collectors providing approximately 4m² nominal collector area.
JR Household Guide
JR currently positions the AS250/40 at approximately 4 people.
Important: The AS250/40 Is a Legacy Envirosun Configuration
Envirosun's current 2026 AS Active Split range no longer lists a 250L model. The live manufacturer range now starts with AS315/40 and continues into larger 400L configurations.
JR still has the AS250/40 listed as an installed product. This means the system should be treated as a legacy or remaining-stock configuration rather than represented as part of Envirosun's current core AS range.
Where the AS250/40 is unavailable, the current AS315/40 is the closest modern Envirosun Active Split step up and should be compared before committing to another solar platform.
PRODUCT SUITABILITY
Is the Envirosun AS250/40 Right for My Home?
A Good Choice If...
You want solar hot water with the tank kept at ground level, have suitable roof exposure for two flat-plate collectors and prefer a split solar layout rather than a roof-mounted storage tank.
Consider Another Option If...
Your household needs greater storage, your roof has poor solar access, your property is frost-prone or current Envirosun stock has moved to the newer AS315 or AS400 platform.
JR Should Check First If...
You are replacing another brand, have a long tank-to-roof pipe run, need difficult roof access, are changing booster type or are unsure whether the proposed system is open- or closed-circuit.
How Does the Envirosun AS250/40 Work?
The AS250/40 separates the hot water cylinder from the solar collectors. The storage tank remains at ground level, while the two solar collectors are mounted on a suitable roof area.
An electronic controller compares collector temperature with tank temperature. When useful solar gain is available, the controller activates the circulation pump and moves water through the collectors so solar heat can be transferred into the stored water.
This pumped arrangement allows the tank to remain off the roof while still using roof-mounted solar collection. When solar energy is insufficient, the selected booster configuration provides additional heating.
Key Features of the Envirosun AS250/40
Ground-Level Storage Tank
The storage cylinder is positioned at ground level rather than mounted on the roof, improving access and reducing roof loading compared with close-coupled systems.
Two Solar Collectors
The published AS250/40 configuration used two E20BC flat-plate solar collectors.
Active Pumped Circulation
A circulation pump transfers solar-heated water between the collectors and storage cylinder when the controller detects useful solar gain.
Electronic Solar Control
The AS platform uses differential temperature sensing to decide when solar circulation should operate.
Electric or Gas Boosting
Legacy AS250/40 documentation lists both electric-boosted and gas-boosted configurations.
Australian-Made Tank
JR and historic Envirosun literature identify the VE-series enamel-lined storage tank as Australian manufactured.
Envirosun AS250/40 Specifications
| Brand | Envirosun |
|---|---|
| Model | AS250/40 |
| Range Status | Legacy configuration; no longer listed in Envirosun's current 2026 AS core range |
| System Type | Active split pumped solar hot water |
| Legacy Electric CER Code | AS250/40/O/E24/E20BC-DM |
| Tank Model | VE250/E24/V-DM |
| Storage Capacity | Approx. 259L electric / 258L gas-boosted configuration |
| Cylinder Material | Vitreous-enamel steel |
| Tank Empty Weight | Approx. 72kg |
| Tank Full Weight | Approx. 331kg electric configuration |
| Tank Footprint | Approx. 620 × 620mm |
| Tank Height | Approx. 1445mm |
| Collector Type | E20BC flat-plate collectors |
| Collector Quantity | 2 |
| Collector Size | Approx. 1000 × 2000 × 82mm each |
| Collector Empty Weight | Approx. 34kg each |
| Roof Footprint | Approx. 2270 × 2050mm |
| Electric Booster | 2.4kW |
| Electric Boost Volume | Approx. 167L |
| Gas Booster | Legacy gas configuration also published |
| JR Household Guide | Approximately 4 people |
These exact AS250/40 specifications come from Envirosun's earlier published AS range documentation because the current 2026 manufacturer range no longer includes the 250L model.
What Is Required to Install the Envirosun AS250/40?
Suitable roof orientation and solar exposure
Adequate roof area for two collectors
Safe roof access and compliant collector mounting
Suitable ground-level tank position
Solar flow and return pipework between tank and collectors
Circulation pump and controller installation
Electrical supply for solar controls and pump
Electric or gas booster services as selected
Cold-water and hot-water plumbing connections
Applicable valves and tempering arrangement
Relief and drainage provisions
Future access for tank, pump and controller servicing
Frost and Climate Suitability
Historic Envirosun AS documentation distinguishes between open-circuit and closed-circuit systems. Envirosun states that open-circuit systems are not suitable for frost-prone or freeze areas and recommends a closed-circuit configuration where freezing conditions are expected.
Frost valves can reduce risk in milder conditions but should not be treated as a guarantee against freeze damage.
For Brisbane and most Gold Coast applications, severe frost is generally less of a concern than in colder Australian regions, but individual site elevation and local conditions still need to be considered.
What's Included With Envirosun AS250/40 Installation?
Standard Solar Replacement
Where the site is suitable, installation can include supply of the selected Envirosun system, positioning of the ground-level cylinder, roof mounting of the collectors and connection of the solar circulation pipework.
Controls & Commissioning
The pump and controller are connected and commissioned so the solar circulation operates correctly with the collector and tank temperature sensors.
Possible Additional Work
Difficult roof access, long solar pipe runs, booster changes, electrical alterations, valve upgrades, relocation, roof-frame work or non-standard plumbing can increase the scope beyond a standard solar replacement.
How Much Does Envirosun AS250/40 Installation Cost?
Current supplied-and-installed pricing should be taken from JR's live product and installation selector above. This keeps current stock, STC treatment, installation packages and availability within the live product system.
The final Envirosun AS250/40 installation cost depends heavily on roof access, collector mounting, solar pipe length, tank location, booster type, electrical work, valves and whether the installation is replacing an existing split solar system or converting from another hot water technology.
A straightforward replacement using an existing suitable solar layout generally involves less additional work than a new solar conversion or relocation.
BRISBANE INSTALLATION
Envirosun AS250/40 Installation Brisbane
JR Gas & Water supplies and installs suitable Envirosun AS250/40 systems in Brisbane while the model remains available.
For Brisbane replacements, JR considers whether the existing collectors, roof mounting area, circulation pipe route, controller location, tank position and booster arrangement can be reused or need replacement as part of the job.
An existing solar system should not automatically be treated as a tank-only replacement. Collector condition, pump operation, valves, roof connections and solar pipework all influence the final installation scope.
GOLD COAST INSTALLATION
Envirosun AS250/40 Installation Gold Coast
JR Gas & Water also provides Envirosun AS250/40 installation on the Gold Coast across eligible service areas while stock and configuration availability permit.
The split-system design can suit homes where roof-mounted collectors are practical but the customer wants the heavy storage cylinder kept at ground level.
Roof exposure, coastal environment, safe access and the solar pipe path between the collectors and tank all need to be checked before the final installation is confirmed.
Can the Envirosun AS250/40 Replace My Existing Hot Water System?
Replacing an Existing Envirosun AS
This is generally the most direct replacement pathway, although collectors, pump, controls and pipework still need inspection.
Replacing Another Split Solar System
Potentially, but existing collectors and controls should not automatically be assumed compatible with the Envirosun configuration.
Replacing Electric Storage
This is a solar conversion rather than a simple cylinder replacement because roof collectors, solar circulation plumbing and controls need to be added.
Replacing Gas Hot Water
A gas-to-solar conversion can be possible, but the new collector, tank and booster arrangement needs to be designed around the property.
Moving to the Current AS315/40
If the AS250/40 is no longer available, the current AS315/40 is the nearest modern Envirosun Active Split configuration and provides greater storage capacity.
Relocating Tank or Collectors
Relocation can materially increase pipe length, roof work, drainage and service requirements and should be assessed separately.
Envirosun AS250/40 vs Current AS315/40
| System | AS250/40 | Current AS315/40 |
|---|---|---|
| Range Status | Legacy / current JR stock listing | Current Envirosun range |
| Storage | Approx. 259L legacy electric configuration | 320L current manufacturer specification |
| Collectors | 2 × E20BC legacy collectors | 2 × current E20HS collectors |
| Solar Layout | Active split pumped | Active split pumped |
| Tank Position | Ground level | Ground level |
| Best Considered When | Existing stock or like-for-like legacy replacement is available | Buying from the current Envirosun AS product range |
COMMON QUESTIONS
Envirosun AS250/40 Installation FAQs
Is the Envirosun AS250/40 still a current model?
Envirosun's current 2026 AS Active Split range no longer lists the 250L model and now starts at AS315. JR still lists the AS250/40, so availability should be confirmed before ordering.
How much does Envirosun AS250/40 installation cost?
Use JR's live product and installation selector for current supplied-and-installed pricing. Final cost depends on roof access, pipework, tank location, booster type, electrical work and whether it is a like-for-like solar replacement.
How much water does the AS250/40 store?
The legacy electric manufacturer specification lists approximately 259 litres. The gas-boosted legacy configuration was listed at approximately 258 litres.
How many collectors does the AS250/40 use?
The AS250/40 configuration used two E20BC collectors, providing approximately 4m² of nominal collector area.
What size is the tank?
The VE250 tank was approximately 620 × 620mm in footprint and 1445mm high.
What electric booster does it use?
The legacy electric AS250/40 documentation specifies a 2.4kW booster with approximately 167L boost volume.
Can it use gas boosting?
Yes. Envirosun historically published a separate AS250/40 gas-boosted configuration.
Is the AS250/40 suitable for frost areas?
The open-circuit AS configuration is not intended for frost-prone or freezing locations. Envirosun's installation documentation directs frost-prone sites toward an appropriate closed-circuit system.
Can JR install it in Brisbane?
Yes, subject to current product availability and site suitability.
Can JR install it on the Gold Coast?
Yes, subject to current availability, roof conditions, access and installation requirements.
What should I buy if the AS250/40 is unavailable?
The current Envirosun AS315/40 is the nearest equivalent within Envirosun's live Active Split range and offers greater storage capacity.
Envirosun AS250/40 Warranty
Warranty treatment needs to be separated between older AS250/40 documentation and Envirosun's current warranty program.
Current Envirosun Warranty
For qualifying residential systems purchased from 26 June 2026, Envirosun currently publishes a 10-year product warranty and 2-year labour warranty for the original owner/occupier, subject to its terms and location exclusions.
Older AS Documentation
Earlier AS literature used shorter component-specific warranty periods, including previous 5- and 7-year tank/collector arrangements depending on purchase date and product generation.
Check the Actual Purchase Date
Because the AS250/40 is now a legacy configuration, warranty should be confirmed against the exact unit, invoice date and Envirosun warranty terms applying when that unit is sold.
Why Choose JR Gas & Water for Envirosun Solar Installation?
JR Gas & Water currently lists the AS250/40 as a professionally installed, Lifetime Warranty eligible solar product and provides live solar installation packages and STC treatment on eligible systems.
Solar hot water installation needs more than product delivery. Roof suitability, collectors, pump controls, pipework, boosting, valves, electrical services and the ground-level tank all need to operate together as one system.
JR's installation-led approach helps separate straightforward solar replacements from jobs requiring roof, plumbing, electrical or booster alterations.
COMPARE YOUR OPTIONS
Compare Solar & Envirosun Hot Water Options
Hot Water Systems
Compare JR's electric, gas, heat pump and solar hot water options.
Solar Hot Water Systems
Compare current split and roof-mounted solar hot water systems with installed pricing.
Envirosun Hot Water Systems
Compare JR's current Envirosun and Enviroheat range.
READY TO INSTALL
Install the Envirosun AS250/40 With JR Gas & Water
The Envirosun AS250/40 is a legacy Active Split solar configuration combining an approximately 259L ground-level storage tank with two roof-mounted solar collectors and pumped circulation.
Where remaining stock is available and the property suits the configuration, JR Gas & Water can provide installation across eligible Brisbane and Gold Coast areas. Where the AS250/40 is no longer available, the current AS315/40 should be compared as the closest modern Envirosun Active Split alternative.
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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Experience and Expertise: JR Gas & Water has over 10 years of experience in the gas and plumbing industry. Their team of licensed and insured professionals is highly skilled and knowledgeable about all aspects of heat pump installation, maintenance, and repair. They can provide expert advice on the best system for your needs and ensure a smooth installation process.
Quality Products: JR Gas & Water uses only high-quality products from trusted brands to ensure your heat pump hot water system is reliable and efficient. They also offer a range of options to suit different budgets and requirements.
Competitive Pricing: JR Gas & Water offers competitive pricing for their heat pump hot water systems, ensuring that you get a great value for your investment. They also provide a detailed quote upfront, so there are no surprises or hidden costs.
Customer Service: JR Gas & Water is committed to providing excellent customer service. They are always available to answer any questions or concerns you may have and are committed to ensuring your satisfaction.
Local Business: JR Gas & Water is a locally owned and operated business in Queensland. By choosing them for your heat pump hot water installation, you are supporting a local business and contributing to the local economy.
Warranty and Guarantee: JR Gas & Water provides a warranty and guarantee on all their products and services, giving you peace of mind knowing that your system is covered in case of any issues.
Sustainable and Environmentally Friendly: Heat pump hot water systems are a sustainable and environmentally friendly option for heating water. They use renewable energy sources, such as air or ground heat, to heat water, resulting in lower greenhouse gas emissions and reduced energy bills. JR Gas & Water can help you make the switch to a more sustainable and cost-effective solution for your hot water needs.
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