🏷️ Brand – Envirosun
🔢 Model Number – TS170/20
📦 Volume – 170L
📏 Width – 2000mm
📐 Height – 1710mm
🌍 Manufactured In – Holland
🛠️ Cylinder / Heat Exchange Material – Stainless Steel
🛡️ Cylinder / Heat-Exchange Warranty – 7 Years
🔇 Noise Level – NA dBa
⚖️Dry Weight – 66kg
⚡ Energy Source – Solar📡 WiFi Controller Built-in or Compatible – NO
⏲️ Built-In Timer – No
💡 LED/LCD Status Indicator – NO
📊 Coefficient of Performance (COP) – NA
The Envirosun TS170/20 Solar Hot Water System is a roof-mounted thermosiphon solar hot water system designed for homes wanting a compact solar hot water setup with the storage tank and collectors mounted together on the roof. It is a practical option for buyers comparing Envirosun TS170/20 installed pricing, Envirosun TS170/20 supply and install, or hot water replacement in Brisbane. Like any roof-mounted solar hot water system, the right result depends not just on the unit itself, but on whether the installation suits the roof, access conditions, plumbing layout, booster setup, and the household’s actual hot water demand.
The Envirosun TS170/20 Solar Hot Water System is a thermosiphon solar hot water system with a 170 litre storage tank and a smaller solar collector configuration. In this style of system, the tank and collectors are mounted together on the roof, and heated water circulates naturally between the collectors and the tank as part of the thermosiphon process.
This model is designed for homes wanting a smaller-capacity roof-mounted solar hot water system rather than a split solar setup with a ground-level tank. As a 170 litre model with the 20-series collector arrangement, it is aimed at homes wanting practical solar hot water performance without stepping into a larger 300 litre style system than they actually need.
One of the main reasons people choose the Envirosun TS170/20 Solar Hot Water System is because it combines solar hot water performance with a straightforward roof-mounted design in a more compact size. The 170 litre storage size can suit homes with lighter to moderate hot water demand, while the smaller collector arrangement keeps the system more compact than larger family-sized roof-mounted solar units.
This model also suits buyers who specifically want a thermosiphon solar hot water system rather than a split pumped system. Because the tank and collectors are mounted together, it can be a practical solution where the roof is well suited to a combined system and where a ground-level tank is not preferred. For many homes, that makes it a practical solar hot water option with manageable roof space requirements and a simpler overall layout.
The Envirosun TS170/20 Solar Hot Water System can be a strong fit for homes wanting a roof-mounted solar hot water system with 170 litre storage and a compact collector setup. It is generally well suited to smaller households, lighter daily hot water demand, or properties where a larger roof-mounted solar unit would be more capacity than needed.
As with any solar hot water system, suitability depends heavily on the site. Roof strength, roof pitch, orientation, available installation area, access, booster 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.
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 TS170/20 Solar Hot Water System is designed as a genuine solar hot water solution with a roof-mounted thermosiphon layout and practical compact storage for homes that do not need a larger system. 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.
JR Gas & Water provides professional Envirosun TS170/20 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 170 litre thermosiphon tank, whether access is safe and workable, whether the system layout suits the property, and what extra works may be required to complete the installation safely and compliantly.
Installing the Envirosun TS170/20 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.
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 TS170/20 Solar Hot Water System, that means practical advice, realistic installation planning, and a stronger focus on what will actually work at the home.
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.
It can be a strong option for homes wanting a roof-mounted solar hot water system with 170 litre storage and a compact collector package, especially where a smaller-capacity system is the better fit. 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.
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.
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 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.
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.
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.
✅ Base – For compliant replacements
Ideal for identical direct swaps where the existing system meets compliance. No extra plumbing, electrical work or disposal required or 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)
| 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 | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| 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:
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!
If you're in Queensland and considering a heat pump hot water system, look no further than JR Gas & Water. Here's why:
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