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Hot Water Heat Pumps

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Solar Hot Water Systems

Stiebel Eltron DEL18+/50 Instant Hot Water $1449 Installed - Water Heaters

Instant Electric Hot Water Systems

Vulcan 4 - Star 135L Gas Hot Water System $1649 Installed - Water Heater - Gas Storage

Storage Gas Hot Water Systems

Envirosun THX+300/60 Solar Hot Water System $11349 Installed - Water Heaters

Envirosun THX+300/60 Gas Hot Water System | Supply+Install | LIFETIME WARRANTY - Water Heaters

Envirosun THX+300/60 Solar Hot Water System | Supply+Install | LIFETIME WARRANTY

$13,149.00

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Greater Brisbane

Gold Coast

Sunshine Coast, Scenic Rim, Bay Islands, Bribie Island, Toowoomba & Lockyer Valley (via quote request only)

Electric Hot Water System Package Selection Guide

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Choosing the right electric hot water system package depends on your installation needs, household size, and whether additional electrical work is required. Use this guide to compare package levels and find the best fit for your home.

Selecting the right package helps streamline installation, but we understand that needs may change, and that the purchaser isn’t a plumber. We’re flexible and can make adjustments, such as upgrading to the next package as needed.

💡 Which Package is Right for You?

IMPORTANT - All online packages are for EXTERNAL installations only, for internal installations please complete our quote request form.

✅ Base – For compliant replacements of Existing Identical Compliant EXTERNAL installations
Ideal for identical exact swaps of the same electrical hot water system where the existing system meets legal compliance requirements. (example below) No extra plumbing, valves, pipework, support base, electrical work or disposal required or included.

(EXAMPLE - A Rheem 250L 491250 replacing complaint Rheem 250L 491250 not a Rheem 250L 101250)

✅ Silver – For minor upgrades to an existing electric hot water system under 10 years old.
Includes minor pipework alterations and a valve kit but does not include electrical modifications, support base or system disposal. Designed for those swapping a similar electric system and working to a tight budget.

(EXAMPLE - Swapping an 8year old Rheem 160L with a new Rinnai 315L where the existing installation is compliant but requires pipework alterations to adapt the new unit and new valve set for warranty)

🏆 Gold (Best Seller) – For standard electric replacement installations
Covers a new valve set, old system removal, expansion drain lines, support base and plumbing modifications, making it the most common choice for standard installations.

(EXAMPLE - Swapping a 20year old Dux 125L with a new Vulcan 315L, Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

💰 Sapphire (Best Value) – For installations requiring minor electrical work
Adds electrical safety features like an isolator, safety switch, and cable extensions to our gold package to ensure a compliant and safe electrical connection.

(EXAMPLE - Swapping an old heat pump/split solar system with a new Everhot 400L that requires a hardwired electrical connection, then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

✅ Diamond – For homes needing extensive electrical work
Provides extra plumbing and electrical modifications, including a new electrical circuit on top of our gold package making it ideal for homes without existing wiring for an electric system.

(EXAMPLE - Swapping an old Gas System with a new Rheem 315L that needs its own dedicated electrical circuit, type then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

✅ Platinum – The ultimate package
Includes everything – system relocation, extensive plumbing, valve set, support base, drain lines, disposal, electrical upgrades, and a new electrical circuit for complete installation flexibility.

(EXAMPLE - Replacing any existing system of any type then relocating it to a new position on the house that requires the electrical/plumbing to be installed or relocated to the new installation position)

🏆 Package Comparison Guide

Feature	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
Existing Unit Must be Identical Make/Model/Series as Purchase	✅	❌	❌	❌	❌	❌
Existing System Removal & Form 4 (Compliance Certification)	✅	✅	✅	✅	✅	✅
Pipework Alterations	❌	✅	✅	✅	✅	✅
Valve Kit (Required for System Operation)	❌	✅	✅	✅	✅	✅
Included Altered Pipework (m)	❌	2m	8m	8m	8m	20m
🏆 Package Comparison Guide	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
Support Base (For Uneven or Soft Ground)	❌	❌	✅	✅	✅	✅
FREE Waste & System Disposal (EXCLUDES ANY AND ALL ROOF MOUNTED COMPONENTS)	❌	❌	✅	✅	✅	✅
System Drainlines (Prevents Flooding & Improves Longevity)	❌	❌	✅	✅	✅	✅
Electrical Isolator (Ensures Safe Operation & Maintenance Access)	❌	❌	❌	✅	✅	✅
Electrical Extension (Required for Distance to Power Source)	❌	❌	❌	✅	✅	✅
🏆 Package Comparison Guide	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
New Electrical Circuit (For Homes Without Existing Power Supply)	❌	❌	❌	❌	✅	✅
Safety Switch (Protects Your Home from Electrical Faults)	❌	❌	❌	✅	✅	✅
Included Altered Cabling (m)	❌	❌	❌	2m	10m	10m
System Relocation (Move System to New Position)	❌	❌	❌	❌	❌	✅
Requires Existing Installation to be Compliant	✅	✅	❌	❌	❌	❌

Whenever a product is required, we only source from trusted, warranty‑backed manufacturers:

Valves – AVG, RMC, Rye Metal (and subsidiaries)
Copper – Type B Kembla or Crane
PEX Systems - Ezipex
Insulation – eFlex or K‑Flex
Electrical switches & timers – Hager
Conduit – Medium Duty PVC Vinidex or GTS
Brassware – Brasshards
Hydraulic crimp fittings – EziPress, Viega, Kembla
Sealants – Loxeal

Feel free to let us know if you have any other preferred brands!

IMPORTANT - All online packages are for external installations only, for internal installations please complete our quote request form.

IMPORTANT - Solar panel and roof-mounted tank removal is not included in any package and is available as an optional extra at additional cost.

🛠 Need Help Choosing?

Not sure which package is right for you? Contact JR Gas & Water, and we’ll help you select the best solution for your home!

Your Final Cost is

Save $-13,149

Product Manufacturers Warranty 7years*

JR Extended Lifetime Warranty Eligible Product

Manufactured in

Energy Rating 6.0/7

Fun Fact - Converting to a heat pump could save a family as much as $27,000 over the life of the system

Save Money, Save Time, save $50 When You Order Online* Discount added to cart

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Online Hot Water System Packages – Important Information

Our online packages cover an external (outside building lines - for internal installations please complete our quote request form) replacement of an existing hot water system. Installation fees do not include:

Relocation of the system (only included in Platinum Package)
Upgrades required to meet current standards for non-compliant installs (only included in Gold, Sapphire, Diamond & Platinum Packages)
Electrical supply alterations beyond a standard disconnect/reconnect (included in Sapphire, Diamond & Platinum Packages)
Additional work due to insufficient gas, water, or power supply (included in Platinum Packages)
Repairs or modifications outside of the hot water system

💡 For internal installations or special requirements, please complete our quote request form:
📩 Request a Quote

Installation Requirements

Electrical Hot Water Systems:

Must be installed perpendicular to the wall with the electrical connection positioned front and center, unless a package including electrical alterations is purchased.

Access Requirements:

A two-person installation ($200 fee) is required and must be pre-organised if access involves any of the following: Stairs, via house internals, via a ladder (excluding platinum package relocations), through gardens, over retaining walls, on roofs, in ceilings, through gravel, swampy land or through passages narrower than 1m exc standard yard gates.
The new and existing unit must be able to be maneuvered via a trolley into/out of position without lifting.
If any access restrictions apply, written confirmation from JR Gas & Water is required to proceed.

💡 For restricted access or internal installations, we strongly recommend submitting a quote request with photos:
📩 Request a Quote

Did You Know a Heat Pump Could Save Your Family As Much 80% on Your Hot Water Energy Bills

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Envirosun THX300/60 Solar Hot Water System Installation in Brisbane & Gold Coast

The Envirosun THX300/60 Solar Hot Water System is a closed circuit thermosiphon solar hot water system designed for homes wanting roof-mounted solar hot water with strong performance, larger solar collection, and added protection in colder conditions or areas with tougher water quality. It uses a 300 litre roof-mounted storage tank with a 6m² solar collector setup, making it a practical option for buyers comparing Envirosun THX300/60 installed pricing, supply and install, or hot water replacement in Brisbane. Because it is a closed circuit thermosiphon system, it is different from both standard open circuit roof-mounted solar and split pumped solar systems.

What Is the Envirosun THX300/60 Solar Hot Water System?

The Envirosun THX300/60 Solar Hot Water System is a roof-mounted thermosiphon solar hot water system with a 300 litre storage tank and 6m² of solar collector area. In this style of system, the tank and collectors are mounted together on the roof, but unlike a standard open circuit solar system, the THX range uses a closed circuit glycol design. That makes it a practical choice for regions that can experience frost, low temperatures for extended periods, or water quality issues that make a closed circuit system the better fit.

This model is built around a 300 litre stainless steel tank and is designed as a premium solar hot water option for homes wanting a roof-mounted system with stronger protection against tougher operating conditions. Compared with the THX300/40, the 60-series version gives more collector area, which makes it better suited to homes wanting stronger solar contribution from the system. It is also available with electric or gas boosting, which matters when matching the system to the property and the household’s hot water needs.

Why Choose the Envirosun THX300/60 Solar Hot Water System?

One of the main reasons people choose the Envirosun THX300/60 Solar Hot Water System is because it combines strong solar hot water performance with a closed circuit design suited to harsher conditions than many standard rooftop systems. The 300 litre tank and 6m² collector area make it a strong fit for households that need family-sized hot water capacity with a higher level of solar contribution than a smaller collector setup can usually provide.

This model also suits buyers who specifically want a roof-mounted thermosiphon system rather than a split solar setup. Because the tank and collectors are mounted together, it can be a practical solution where roof suitability is good and a ground-level tank is not preferred. The stainless steel storage tank and closed circuit glycol operation also make it attractive for buyers wanting a more premium solar setup rather than a basic enamel-lined open circuit system.

Is the Envirosun THX300/60 Solar Hot Water System Right for Your Home?

The Envirosun THX300/60 Solar Hot Water System can be a strong fit for homes wanting a roof-mounted solar hot water system with 300 litre storage and 6m² of solar collection. It is generally well suited to households with moderate to higher hot water demand, especially where the roof is suitable for a combined tank and collector system and where frost protection or water quality concerns make a closed circuit design the better option.

Compared with the THX300/40, this version is more suited to homes that want stronger solar harvesting to support the 300 litre tank, which can make it a better fit for larger usage patterns or homes wanting to reduce booster use as much as possible. As with any solar hot water system, suitability depends heavily on the site. Roof strength, roof pitch, orientation, available installation area, access, boosting arrangement, and plumbing layout all matter.

Final installation scope depends on what is already at the property. Some jobs are straightforward replacements, while others may require extra works. Depending on the site, that may include roof mounting arrangements, pipework alterations, booster integration, valve upgrades, tempering requirements, access equipment, or changes to suit the final layout.

Why Choose a Quality Hot Water System Instead of a Cheaper Alternative?

A cheaper hot water system is not always the better buy once installation complexity, long-term efficiency, durability, and actual site suitability are taken into account. Solar hot water especially needs to be judged on more than just upfront product price. The wrong system for the roof, boost arrangement, or plumbing layout can quickly become poor value.

The Envirosun THX300/60 Solar Hot Water System is designed as a genuine premium solar hot water solution with a stainless steel storage tank, closed circuit glycol operation, and a roof-mounted thermosiphon layout with larger solar collection than the smaller THX300/40. The bigger issue is installation suitability. Even a good solar system can become the wrong choice if the roof is not right, the access is poor, the boosting side is not planned properly, or the property would actually suit a different solar layout better. That is why JR Gas & Water focuses on the overall installation result, not just the unit itself.

Professional Envirosun THX300/60 Solar Hot Water System Installation in Brisbane & Gold Coast

JR Gas & Water provides professional Envirosun THX300/60 Solar Hot Water System installation in Brisbane & Gold Coast, with the installation assessed around the roof layout, current hot water setup, pipework path, booster requirements, and the home’s actual hot water usage. Whether it is a solar hot water replacement in Brisbane or hot water installation on the Gold Coast, the goal is to make sure the system suits the site rather than forcing a solar model into the wrong property conditions.

We also service surrounding areas including Logan, Ipswich, Moreton Bay and Redlands. Our approach is practical and installation-led. That means checking whether the roof is suitable for a roof-mounted 300 litre thermosiphon tank, whether access is safe and workable, whether the closed circuit design is the right fit for the property, and what extra works may be required to complete the installation safely and compliantly.

What’s Involved in Installing the Envirosun THX300/60 Solar Hot Water System?

Installing the Envirosun THX300/60 Solar Hot Water System is very different from installing a ground-level electric storage system, a split pumped solar system, or a heat pump. The storage tank and collectors are mounted together on the roof, so the installation has to account for roof structure, weight placement, safe access, working area, plumbing runs, and the correct booster arrangement from the start.

In a standard installation, the work may include removal of the old hot water system where applicable, roof positioning of the new thermosiphon solar unit, connection of hot and cold water services, integration of the selected boost arrangement, fitting or checking valves, tempering where required, commissioning, and final testing. Depending on the site, that may also include structural support considerations, roof access equipment, extended pipe runs, mounting arrangements, or changes to the existing plumbing layout.

JR Gas & Water keeps the process practical and clear so customers understand what is standard, what may vary, and what may be needed for a safe and compliant installation.

Why Choose JR Gas & Water?

JR Gas & Water is installation-led, which matters with solar hot water because the success of the job depends heavily on the property, not just the product name. Roof-mounted systems need practical assessment, not guesswork. The right result comes from making sure the system matches the roof, the plumbing layout, the booster arrangement, the household demand, and the real installation conditions on site.

We work with real homes across Brisbane and the Gold Coast, helping customers choose solar hot water systems that make sense for the property rather than relying on generic brochure claims. With a model like the Envirosun THX300/60 Solar Hot Water System, that means practical advice, realistic installation planning, and a stronger focus on what will actually work at the home.

Envirosun THX300/60 Solar Hot Water System Installation FAQs

How much does Envirosun THX300/60 Solar Hot Water System installation cost in Brisbane or the Gold Coast?

Installation cost depends on the property and roof setup. A straightforward replacement on a suitable roof with workable access is generally simpler than a job involving difficult access, structural considerations, boost changes, upgraded pipework, or other extra works. Final pricing depends on the existing setup and what is required for a safe and compliant installation.

Is the Envirosun THX300/60 Solar Hot Water System right for my home?

It can be a strong option for homes wanting a roof-mounted closed circuit solar hot water system with 300 litre storage and 6m² of solar collection, especially where frost protection or tougher water conditions matter and where stronger solar harvesting is preferred. The main considerations are roof space, structure, orientation, access, boost arrangement, household demand, and whether a roof-mounted thermosiphon design is the right fit for the property.

What is included in a standard Envirosun THX300/60 Solar Hot Water System installation?

A standard installation typically includes the core labour and materials needed to install the solar unit on a suitable roof and connect it to the home’s hot water services where conditions allow. That may include positioning the system, plumbing connections, valve assessment, boost integration, commissioning, and operational checks. Extra works may still be required depending on the site.

Can the Envirosun THX300/60 Solar Hot Water System replace my current system?

In many cases, yes, but suitability depends on more than just tank size. Whether it can replace the current system depends on the roof, access, plumbing layout, boost setup, structural suitability, and whether a roof-mounted closed circuit thermosiphon solar system is the right fit for the home overall. Some properties are a good match, while others may suit a different solar or non-solar setup better.

Can JR Gas & Water install the Envirosun THX300/60 Solar Hot Water System in my area?

JR Gas & Water installs solar hot water systems across Brisbane and the Gold Coast, and also services Logan, Ipswich, Moreton Bay and Redlands. Availability depends on the job type, roof conditions, access, and site suitability, but we regularly handle solar hot water installation across these areas.

ZipPay – 6-Month Interest-Free on All Products

ZipPay allows you to buy now and pay later, offering flexible, interest-free payments for up to 6 months on all JR products. It’s easy to set up, and you can customize your repayment schedule to suit your budget. Payments can be made weekly, fortnightly, or monthly, with a $6 fee if the balance isn’t paid off by the due date.

Humm – Up to 12 Months Interest-Free

Humm provides interest-free payment plans on purchases up to $30,000, perfect for both small and large buys. For items over $2,000, you can spread payments over 12 months. Humm also offers flexibility in scheduling payments based on when you get paid

Afterpay – 8 Weeks, No Interest

With Afterpay, spread the cost of purchases across four equal installments, due every two weeks, over an 8-week period. There’s no interest, and as long as payments are made on time, there are no fees. Perfect for purchases between $100 and $1,500

Plenti Finance – For Reclaim Systems Only

Plenti Finance is available exclusively for Reclaim Energy systems. This option offers tailored repayment terms with competitive interest rates, helping make eco-friendly choices more affordable. For more detailed information on Plenti’s terms and eligibility for Reclaim systems, visit the Reclaim Energy finance page

Brand - Envirosun
Model Number - THX300/60
Volume - 300L
Width - 2150mm
Height - 650mm
Manufactured In -
Cylinder/ Heat Exchange Material - Stainless Steel
Cylinder/Heat-Exchange Warranty - 7 Years
Noise Level - NAdBa
Dry Weight - 59kg
Energy Source - Solar
Wifi Controller Built in or Compatible -
Built In Timer - No
LED/LCD Status Indicator -
Coefficient of Performance (COP) -

If you're in Queensland and considering a new electric hot water system, JR Gas & Water is the company to choose. Here's why:

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 electric hot water system 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 electric 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 electric 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 electric 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.

Energy Efficiency: Electric hot water systems can be energy efficient, and JR Gas & Water can help you choose the right system for your needs. They can provide advice on energy-saving features and options, such as timers and thermostats, to help you save on your energy bills.

Safety: JR Gas & Water is committed to safety and ensuring that all installations are done to the highest safety standards. They are also familiar with local safety regulations and requirements, ensuring that your electric hot water system is installed safely and in compliance with all relevant codes.

JR Gas & Water is a reliable and experienced choice for your electric hot water system installation in Queensland. With a commitment to quality products, competitive pricing, excellent customer service, and safety, they can help you make the switch to a more efficient and cost-effective solution for your hot water needs. Contact them today to learn more about their services and how they can help you.

FAQs

An electric storage hot water system is a traditional way to heat water for domestic use. It works by heating water in a storage tank using an electric heating element.

The benefits of installing an electric storage hot water system include reliability, ease of installation, and low upfront costs.

The cost of installing an electric storage hot water system in Australia can vary depending on factors such as the size of the system, the complexity of the installation, and the location of the property. On average, prices range from $800 to $2,000.

The installation time for an electric storage hot water system can vary depending on the complexity of the installation and the size of the system. On average, installation can take between 2-4 hours.

Yes, like all hot water systems, electric storage hot water systems require regular maintenance to ensure they are working efficiently and to prolong their lifespan. This includes checking the system's thermostat, cleaning the tank, and checking the heating element.

Electric storage hot water systems typically last between 10-15 years, although this can vary depending on the quality of the system, the frequency of maintenance, and the level of usage.

Yes, electric storage hot water systems can be installed in most types of properties, including residential homes, commercial buildings, and apartments.

Yes, installing an electric storage hot water system can have environmental impacts, such as increasing greenhouse gas emissions and energy usage. However, newer models with higher energy efficiency ratings can reduce these impacts.

Choosing the right size electric storage hot water system for your property will depend on several factors, including the number of people in the property, the level of hot water usage, and the climate in the area. A qualified installer can help you determine the right size system for your needs.