🏷️ Brand – Thermann
🔢 Model Number – 9504710
📦 Volume – 130/135L
📏 Width – 422mm
📐 Height – 1600mm
🌍 Manufactured In – Australia
🛠️ Cylinder / Heat Exchange Material – Steel Enamel
🛡️ Cylinder / Heat-Exchange Warranty – 10 Years
🔇 Noise Level – dBa
⚖️ Dry Weight – kg
⚡ Energy Source –
📡 WiFi Controller Built-in or Compatible – No
⏲️ Built-In Timer – No
💡 LED/LCD Status Indicator – No
📊 Coefficient of Performance (COP) –

Thermann 135L Gas Storage Installation in Brisbane & Gold Coast

The Thermann 135L Gas Storage is a gas storage hot water system designed for homes wanting a straightforward, practical replacement for an older storage unit. It is a strong option for buyers comparing Thermann 135L Gas Storage installed pricing, Thermann 135L Gas Storage supply and install, or hot water replacement in Brisbane. Like any gas storage hot water system, the right result depends not just on the unit itself, but on whether the installation suits the property, gas type, plumbing layout, available space, and the household’s actual hot water demand.

What Is the Thermann 135L Gas Storage?

The Thermann 135L Gas Storage is a gas storage hot water system with 135 litres of storage capacity. It is designed as a practical gas hot water option for homes wanting reliable day-to-day hot water in a familiar storage tank format.

This model is part of the Thermann gas storage range and is available in both natural gas and LPG versions. It uses left-hand water connections, includes a pressure and temperature relief valve, and is built with a small footprint for easier replacement in many existing storage hot water positions.

Why Choose the Thermann 135L Gas Storage?

One of the main reasons people choose the Thermann 135L Gas Storage is because it delivers hot water quickly, as the water is already stored and ready for immediate use. It is also generally more affordable up front than many other hot water system types and can often be installed without upgrading the gas line.

This model also suits buyers wanting a simple gas storage replacement rather than moving to a different system type. It has 4 star efficiency, full mains pressure delivery to taps, an adjustable thermostat for safety and efficiency, and a compact footprint that makes it practical for straightforward replacement jobs.

Is the Thermann 135L Gas Storage Right for Your Home?

The Thermann 135L Gas Storage is generally best suited to homes with light to moderate hot water demand. It is rated for around 2 to 5 people depending on usage patterns, and it can be a strong option for smaller families or homes where a larger storage tank would be unnecessary.

Because this is a gas storage hot water system, installation suitability depends on more than just tank size. The gas type, available installation space, water pressure conditions, valve setup, and plumbing layout all matter. This model has a height of about 1600mm, left-hand water inlet and outlet connections, a gas inlet height of about 300mm, and an empty weight of about 72kg.

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 valve upgrades, pressure limiting, gas alterations, pipework adjustments, base work, or relocation of the unit to a more suitable position.

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

A cheaper hot water system is not always the better result once installation suitability, durability, reliability, and actual hot water demand are properly considered. Even a straightforward gas storage hot water system still needs to be matched properly to the property and the way the home uses hot water.

The Thermann 135L Gas Storage is designed as a practical gas storage system, not just a budget box to be dropped into any situation. Features like 4 star efficiency, full mains pressure delivery, a compact replacement footprint, and immediate stored hot water all help make it a stronger practical option than a cheaper alternative chosen purely on upfront price.

That is why JR Gas & Water focuses on the right product and the right installation together, rather than treating hot water replacement like a one-size-fits-all job.

Professional Thermann 135L Gas Storage Installation in Brisbane & Gold Coast

JR Gas & Water provides professional Thermann 135L Gas Storage installation in Brisbane & Gold Coast, with the installation assessed around the property’s existing hot water setup, plumbing layout, gas supply, available space, and actual household usage. Whether it is a hot water replacement in Brisbane or hot water installation on the Gold Coast, the goal is to make sure the system fits the property properly rather than simply swapping one tank for another.

We also service surrounding areas including Logan, Ipswich, Moreton Bay and Redlands. Our approach is practical and installation-led. That means checking whether the property suits a 135 litre gas storage hot water system, whether the gas type matches the unit, whether the installation location is suitable, and what may need to change to complete the installation safely and compliantly.

What’s Involved in Installing the Thermann 135L Gas Storage?

Installing the Thermann 135L Gas Storage involves more than removing one tank and dropping in another. Because it is a gas storage hot water system, the installation needs to account for gas connection requirements, hot and cold water pipe connections, pressure control, relief valve arrangements, and whether the new unit suits the available installation location.

In a standard replacement scenario, the work may include removal of the old hot water system, positioning the new unit, connecting hot and cold water pipework, checking or replacing valves where required, confirming pressure control requirements, connecting the gas supply, commissioning the system, and testing operation. Depending on the site, that may also include gas changes, pipework rerouting, improved drainage arrangements, base preparation, or relocation to a better position.

It is also important to note that this model is not designed for commercial use.

Why Choose JR Gas & Water?

JR Gas & Water is installation-led, which matters even with a straightforward gas storage hot water system. The real result depends on whether the unit suits the property, the gas supply, the plumbing arrangement, the installation location, and the way hot water is actually used.

We work with real homes across Brisbane and the Gold Coast, helping customers choose the right setup for their property rather than relying on generic brochure claims. With a model like the Thermann 135L Gas Storage, that means practical advice, realistic installation assessment, and a clearer process from product selection through to installation.

Thermann 135L Gas Storage Installation FAQs

How much does Thermann 135L Gas Storage installation cost in Brisbane or the Gold Coast?

Installation cost depends on what is already at the property. A straightforward like-for-like gas storage replacement in a suitable location is usually simpler than a job requiring gas changes, valve upgrades, plumbing alterations, or relocation. Final pricing depends on the site, access, and what is required for a safe and compliant installation.

Is the Thermann 135L Gas Storage right for my home?

It can be a strong option for homes wanting a practical 135 litre gas storage hot water system. It is generally better suited to lighter to moderate hot water demand rather than larger households with heavy daily use.

What is included in a standard Thermann 135L Gas Storage installation?

A standard installation typically includes the core labour and materials needed to install the new system in a suitable location and connect it to existing services where conditions allow. That may include removal of the old unit, plumbing connections, valve assessment, gas connection, commissioning, and operational checks. Extra works may still be required depending on the site.

What warranty comes with the Thermann 135L Gas Storage?

This model has a 7 year tank warranty and 1 year parts and labour for domestic use. On a timed recirculation system, the tank warranty reduces to 3 years. Commercial warranty is 3 years on the cylinder with 1 year parts and labour.

Can JR Gas & Water install the Thermann 135L Gas Storage in my area?

JR Gas & Water installs the Thermann 135L Gas Storage across Brisbane and the Gold Coast, and also services Logan, Ipswich, Moreton Bay and Redlands. Availability depends on the job type, timing, and site conditions, but we regularly handle gas hot water installation across these areas.

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

Gas Storage Hot Water System Package Selection Guide

(Please rotate mobile device to landscape for easy viewing)

Choosing the right gas storage 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
Ideal for identical direct swaps where the existing system meets compliance. No extra plumbing, electrical work or disposal required or included.

(EXAMPLE - A Rheem 4-Star 135L replacing complaint Rheem 4-Star 135L not a Rheem 4-Star 170L)

✅ Silver – For minor upgrades
Includes pipework alterations and a valve kit but does not include gas modifications or system disposal. Designed for those swapping a similar system and working to a tight budget. 

(EXAMPLE - Swapping a 10year old Rheem Stellar 360 with a new Rheem Stellar 330 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 4-Star 135L with a new Vulcan 4-Star 170L, Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

💰 Sapphire (Best Value) – For installations requiring a new gas main or upgrade plus everything in the gold package

(EXAMPLE - Swapping an electric system with a new Everhot 4-Star 135L that requires a new gas line and connection to be installed, 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 gas upgrades.

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

🏆 Package Comparison Guide

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.

🛠 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!

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​

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.