Thermann 4 - Star 170L Gas Hot Water System $1949 Installed - Water Heater - Gas Storage
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Thermann 4-Star 170L Gas Hot Water System | Supply+Install | LIFETIME WARRANTY

Hot water, hassle-free. This Thermann is built for families who value reliability, efficiency, and peace of mind. With expert installation and unbeatable service, you’re in the best hands!
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Quick Specs & Benefits
  • πŸ”’ Model: 9504723
  • πŸ“¦ Volume: 170L
  • πŸ‘¨β€πŸ‘©β€πŸ‘§β€πŸ‘¦ Recommended Household Size: 6-7 people
  • πŸ“ Width: 422 mm
  • πŸ“ Height: 1900 mm
  • πŸ› οΈ Internal Cylinder Material: Steel
  • πŸ“… Maximum Warranty: 10 Years
  • πŸ’‘ LED/LCD Status Indicator: No
  • 🌍 Made In: Australia
  • πŸ”₯ Gas Type: Default supply is Natural Gas β€” please leave a note at checkout if LPG is required.
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Regular price $2,849.00
Regular price $3,249.00 Sale price $2,849.00
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βœ“ Installed hot water packages available in eligible JR Gas & Water service areas
βœ“ Free delivery included with eligible installed packages
βœ“ Licensed installation available across Brisbane, Logan, Redlands, Ipswich, Moreton Bay and Gold Coast service areas
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For gas storage hot water system installations with non-standard pipework, gas supply upgrades, LPG or natural gas requirements, tight access, relocation work, flueing or clearance issues, valve upgrades, drainage issues, or uncertainty around the correct system size, our team can confirm the best option before you book.

βœ” Service by Licensed Professionals  β€’  βœ” Fixed Price Services

🏷️ Brand – Thermann
πŸ”’ Model Number – 9504723
πŸ“¦ Volume – 170L
πŸ“ Width – 422mm
πŸ“ Height – 1900mm
🌍 Manufactured In – Australia
πŸ› οΈ Cylinder / Heat Exchange Material – Steel
πŸ›‘οΈ Cylinder / Heat-Exchange Warranty – 10 Years
πŸ”‡ Noise Level – dBa
βš–οΈ Dry Weight – kg
⚑ Energy Source –
πŸ“‘ WiFi Controller Built-in or Compatible – No
⏲️ Built-In Timer – No
πŸ’‘ LED/LCD Status Indicator – No
πŸ“Š Coefficient of Performance (COP) –

Thermann 170L Gas Storage Installation in Brisbane & Gold Coast

The Thermann 170L 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 170L Gas Storage installed pricing, Thermann 170L 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 170L Gas Storage?

The Thermann 170L Gas Storage is a gas storage hot water system with 170 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 uses left-hand water connections, includes a pressure and temperature relief valve, and is built with a relatively compact replacement footprint for its capacity. It is available in natural gas and is designed for domestic use rather than commercial applications.

Why Choose the Thermann 170L Gas Storage?

One of the main reasons people choose the Thermann 170L 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 small-footprint style that helps with straightforward replacement jobs.

Is the Thermann 170L Gas Storage Right for Your Home?

The Thermann 170L Gas Storage is generally best suited to homes with moderate hot water demand. It is suited to families of around 3 to 5 people, making it a practical option for households wanting more stored hot water than a 135L model can usually provide.

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 1900mm, left-hand water inlet and outlet connections, a gas inlet height of about 300mm, and an empty weight of about 86kg.

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 170L 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 straightforward 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 170L Gas Storage Installation in Brisbane & Gold Coast

JR Gas & Water provides professional Thermann 170L 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 170 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 170L Gas Storage?

Installing the Thermann 170L 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 170L Gas Storage, that means practical advice, realistic installation assessment, and a clearer process from product selection through to installation.

Thermann 170L Gas Storage Installation FAQs

How much does Thermann 170L 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 170L Gas Storage right for my home?

It can be a strong option for homes wanting a practical 170 litre gas storage hot water system. It is generally better suited to moderate household hot water demand rather than very light use.

What is included in a standard Thermann 170L 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 170L 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 170L Gas Storage in my area?

JR Gas & Water installs the Thermann 170L 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.

πŸ’‘ Which Package is Right for You?

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

βœ… 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)

βœ… 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.Β 

(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)

πŸ† 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)

πŸ’° 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)

βœ…Β 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)


πŸ† Package Comparison Guide

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

Β 

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.


πŸ› Β Need Help Choosing?

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

Gas storage hot water systems provide reliable, fast recovery hot water and are designed to deliver many years of dependable service. Like any gas appliance, they require regular maintenance to ensure safe operation, maximise efficiency and support your manufacturer's warranty.

Routine servicing helps identify worn components before they result in costly repairs or unexpected loss of hot water.

Homeowner Maintenance – Every 6 Months

Every six months we recommend carrying out a simple visual inspection of your 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 system.
  • Ensure the flue terminal is free from obstructions (where applicable).
  • Keep the area around the appliance clear of leaves, debris and combustible materials.
  • Inspect for signs of corrosion or rust.
  • Listen for any unusual noises during operation.

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 the flue clear allows combustion gases to vent safely and helps the burner operate efficiently.

Important: Always follow your manufacturer's instructions when operating safety valves, as hot water will discharge during testing. If you're unsure or unable to perform this maintenance safely, contact a licensed plumber.

JR 6-Month Gas Storage Health Check

Recommended Service – $99

A professional inspection helps ensure your gas hot water system is operating safely and efficiently while identifying potential issues before they become major repairs.

Our technician will:

  • Inspect the complete hot water system.
  • Check for leaks or corrosion.
  • Test the PTR valve.
  • Test the ECV (where fitted).
  • Inspect burner operation.
  • Check pilot flame or ignition system.
  • Inspect the gas control valve.
  • Check gas connections for leaks.
  • Inspect the flue for safe operation (where applicable).
  • Confirm correct burner performance.
  • Check thermostat operation.
  • Inspect surrounding pipework and fittings.
  • Identify components showing signs of wear.

Service Price: $99

Routine inspections can improve reliability, maintain efficiency and reduce the likelihood of unexpected breakdowns.

Recommended 5-Year Major Service

Current Price: $449

Most gas storage hot water systems benefit from scheduled replacement of key components to maintain safe and reliable operation.

Our comprehensive 5-Year Service includes:

  • Replacement of the sacrificial anode.
  • Replacement of the Pressure & Temperature Relief (PTR) Valve.
  • Replacement of the Expansion Control Valve (ECV).
  • Full inspection of the gas storage system.
  • Burner inspection and cleaning (where required).
  • Gas leak testing.
  • Flue inspection.
  • Operational and safety testing.
  • Inspection of pipework, valves and fittings.

Why These Components Matter

Sacrificial Anode

Most vitreous enamel-lined gas storage tanks contain a sacrificial anode.

The anode corrodes instead of the steel tank, protecting it from internal rust.

Once the anode is consumed, the tank itself begins to corrode, which can eventually result in leaks and complete tank failure.

Replacing the anode at the recommended interval is one of the most effective ways to extend the life of your hot water system.

Pressure & Temperature Relief (PTR) Valve

The PTR valve is an essential safety device that protects the storage tank from excessive pressure and temperature.

Mineral deposits and normal wear can prevent the valve from operating correctly over time, making routine testing and replacement important.

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 associated plumbing, contributing to a longer system life.

Burner & Flue

The gas burner provides the heat required to maintain your hot water supply, while the flue safely removes combustion gases from the appliance.

A clean burner and unobstructed flue help ensure:

  • Safe operation.
  • Efficient gas consumption.
  • Reliable ignition.
  • Consistent hot water performance.
  • Reduced risk of carbon monoxide hazards in flued systems.

If Your Hot Water System Isn't Working

Before arranging a service, check the following:

  • Ensure the gas supply is turned on.
  • Check whether other gas appliances are operating.
  • Confirm the isolation valve is open.
  • Check for any obvious water leaks.
  • Ensure the pilot light is operating (where fitted).
  • Check for any error indicators (electronic ignition models).
  • Inspect the flue terminal for obstructions (where applicable).
  • Listen for unusual noises during operation.
  • Confirm the system has had sufficient time to recover after heavy hot water use.

If your system still isn't producing hot water, contact JR Gas & Water for professional diagnosis and repair.

General Signs Your System May Need Attention

Arrange a service if you notice:

  • Insufficient or no hot water.
  • Pilot light repeatedly going out.
  • Burner failing to ignite.
  • Rust-coloured or dirty water.
  • Water leaking from the tank.
  • Constant dripping from relief valves.
  • Visible corrosion.
  • Gas odours (leave the area immediately and contact your gas supplier or emergency services if you suspect a gas leak).
  • Unusual burner noises.
  • Reduced hot water recovery.

Early servicing can often prevent expensive repairs and extend the life of your hot water system.

Protect Your Warranty & Maximise System Life

Regular maintenance helps ensure your gas storage hot water system operates 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.
  • Worn or leaking safety valves.
  • Reduced efficiency and higher gas consumption.
  • Burner or ignition problems.
  • 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 a cost-effective way to protect your investment, improve reliability and maximise the service life of your gas storage 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 gas storage hot water system. JR Gas & Water services all major gas storage hot water brands in accordance with manufacturer recommendations where applicable.

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.

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