Did You Know a Heat Pump Could Save Your Family As Much 80% on Your Hot Water Energy Bills
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The Thermann 315L is a 315L 30 Evacuated Tube twin panel split solar hot water system manufactured by Dux Manufacturing in Australia. The system is suitable for a household of 6 to 7, and available also in a 250L and 400L option. Measuring in at TBA high, TBA wide and a dry weight of TBA the Thermann 315L is a compact system with a factory 5year cylinder warranty.
With excellent efficiency and a COP rating close to 4 when operating at ideal conditions. Standard with a well built vitreous enamel lined steel tank, they are a great long term solution for trouble free hot water in an internal or external installation. Add a backup booster element for a hot shower on a wet day, left hand inlets and outlets with standardised water connections, the 315L is an easy, quiet, economical system with mains pressure available at multiple taps with adequate household plumbing.
Thermann has been a trusted name in hot water for 10years and is perfectly designed to operate in our harsh environment. For more advice, product or installation questions or to book your installation contact JR here via our online chat, call 0478521501, or email info@jrgasandwater.com.au
SPECIAL FEATURES
-5year Warranty
-Electric Boosted
-Easy Install
Why use JR Gas & Water for your next hot water installation across Greater Brisbane or beyond?
Not only are we productreview.com.au 2023 national winner of the Best Plumbers category we were also voted national Best Home Care store which shows that our customers don't just love our great product prices but our product knowledge, customer service, attention to detail and second to none installation quality.
Being competitively priced is very important to us, we are not going to be the cheapest but like thousands of our customers 5-star reviews can attest to, for that little bit more you get a lot more, with great service, a superior installation, aftersales support, and what you generally miss out on with the cheapest install, manufacturer backed warranty. We guarantee our work won't leave you high and dry if you are the unlucky few that have a system die under warranty.
Solar Hot Water System Package Selection Guide
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Choosing the right Solar 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?
✅ Base – For compliant replacements
Ideal for direct swaps where the existing system meets compliance. No extra plumbing or electrical work included.
(EXAMPLE - A Rheem Loline 325 replacing complaint Rheem loline 325 not a Rheem loline 400l)
✅ Silver – For minor upgrades
Includes pipework alterations and a valve kit but does not include electrical modifications or system disposal. Designed for those swapping a similar system and working to a tight budget.
(EXAMPLE - Swapping a 10year old Rheem Loline 400L with a new Rheem Loline 325 where the existing installation is good but requires pipework alterations to adapt the new unit and new valve set for warranty)
🏆 Gold (Best Seller) – For standard installations
Covers old system removal and plumbing modifications, making it the most common choice for standard installations.
(EXAMPLE - Swapping a 20year old Dux Ecosmart with a new Envirosun AS315, Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)
💰 Sapphire (Best Value) – For installations requiring electrical work
Adds electrical safety features like an isolator, safety switch, and cable extensions to ensure a compliant and safe electrical connection.
(EXAMPLE - Swapping an old Conergy High Mount Boosted Unit with a new Envirosun AS400 mid mount boosted system that requires a lower 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, making it ideal for homes without existing or undersized wiring for a solar system.
(EXAMPLE - Swapping an old solar system with undersized electrical with a new solar that needs its own dedicated 20amp 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 and electrical upgrades, solar circulating lines, 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 | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ |
| 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) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| Waste & System Disposal (Old System Removal) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| 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!
🛠 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!
Brand - Thermann
Model Number -
Volume - 315L
Width - mm
Height - mm
Manufacturered In -
Cylinder/ Heat Exchange Material - Steel
Cylinder/Heat-Exchange Warranty - 5 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) -
If you're in Queensland and considering a heat pump hot water system, look no further than JR Gas & Water. 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 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.
FAQs
A heat pump hot water system is an energy-efficient way to heat water for domestic use. It works by using a heat pump to extract heat from the air outside, then transferring it to the water in a storage tank.
The benefits of installing a heat pump hot water system include lower energy bills, reduced greenhouse gas emissions, and a longer lifespan than traditional hot water systems.
The cost of installing a heat pump 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 $2,500 to $5,000.
Yes, there are several government rebates and incentives available for installing a heat pump hot water system in Australia. These include the Small-Scale Technology Certificate (STC) scheme, which provides financial incentives for renewable energy systems, and the Renewable Energy Target (RET) scheme, which aims to increase the use of renewable energy sources.
The installation time for a heat pump hot water system can vary depending on the complexity of the installation and the size of the system. On average, installation can take between 2-3 hours.
Yes, like all hot water systems, heat pump hot water systems require regular maintenance to ensure they are working efficiently and to prolong their lifespan. This includes checking the system's filters, cleaning the coils, and checking the refrigerant levels.
Heat pump 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, heat pump hot water systems can be installed in most types of properties, including residential homes, commercial buildings, and apartments.
Yes, installing a heat pump hot water system can have environmental benefits, such as reducing greenhouse gas emissions and helping to conserve natural resources. However, it's important to ensure that the system is installed correctly and that the property has adequate ventilation to avoid any negative environmental impacts.
Choosing the right size heat pump 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.
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