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

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Vulcan DUOMAX 26 Continuous Flow Gas Hot Water System – Supply & Installation Brisbane & Gold Coast

High performance. Maximum flow. Non-stop hot water for large families.

The Vulcan DUOMAX 26 is a powerful, energy-efficient continuous flow gas hot water system built to handle the demands of busy Australian households. Delivering 26 litres per minute, it’s designed for homes with 3+ bathrooms or families that run multiple taps and showers at once.

At JR Gas & Water, we supply and install the DUOMAX 26 across Brisbane and Gold Coast suburbs, delivering fast, licensed service with competitive packages to match your needs. As the 2023, 2024, and 2025 Best Plumbers and Best Home Care Store winners, we’re the team homeowners trust.

Key Features of the Vulcan DUOMAX 26

💧 26L/min flow rate – Ideal for homes with 2–3 bathrooms and 4+ people
🔥 Continuous hot water – No storage tank, no running out
🌡️ Precise temperature control – Optional bathroom controllers for safety and comfort
♻️ 6-Star energy rated – Reduces gas bills and emissions
⚙️ Natural Gas or LPG compatible – Flexible for any property
📦 Slimline outdoor unit – Perfect for external wall mounting
🇦🇺 Australian-made – Built tough with nationwide parts availability

Who’s It Best For?

✔ Families of 4 or more
✔ Homes with 2 or more bathrooms
✔ Upgrading from an undersized or electric hot water system
✔ Builders and renovators seeking a premium gas hot water solution

Why Choose JR Gas & Water?

🧰 End-to-end supply & install by licensed local experts
✅ QBCC Form 4 compliance certificate provided
🏆 3x award-winning customer service across SEQ
🧼 We remove your old system and leave the site clean
📅 Same-day or next-day installs available in most suburbs
💬 Advice tailored to your home layout & usage needs

Installation Packages Available

Base Package

For replacing an identical or compliant DUOMAX system. Fast swap with Form 4 and no major changes needed.

Silver Package

Includes new valves, compliant upgrades, and safe gas fittings for older or modified setups.

Gold Package

Full upgrade including all new valves, pipework, mounting brackets, insulation, a concrete support base, tempering valve (if needed), and removal of your old unit.

Common Questions

Q: Can the DUOMAX 26 handle multiple showers?
A: Yes! It can comfortably support 2–3 simultaneous showers with 26L/min flow.

Q: Is it compatible with LPG?
A: Yes, available in both LPG and natural gas models.

Q: What warranty does it come with?
A: 10 years on the heat exchanger and 3 years on parts and labour.

Q: Is this a tankless system?
A: Yes. The DUOMAX 26 is a continuous flow (tankless) system, meaning instant hot water without storage.

Q: Can I add controllers?
A: Optional temperature controllers are available for bathroom and kitchen zones.

Upgrade to High-Flow Hot Water with JR Gas & Water

No more cold showers. No more waiting. The Vulcan DUOMAX 26 is a dependable, efficient solution for large households that need hot water to keep up. Let our team of licensed plumbers handle your install quickly and properly.

👉 Explore more gas hot water systems or book your install today.

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

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Height - mm
Manufactured In -
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Cylinder/Heat-Exchange Warranty - Years
Noise Level - dBa
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Wifi Controller Built in or Compatible -
Built In Timer -
LED/LCD Status Indicator -
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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.

Vulcan DUOMAX 26 Instant Gas Hot Water System | Supply+Install | LIFETIME WARRANTY

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

Vulcan DUOMAX 26 Continuous Flow Gas Hot Water System – Supply & Installation Brisbane & Gold Coast

Key Features of the Vulcan DUOMAX 26

Who’s It Best For?

Why Choose JR Gas & Water?

Installation Packages Available

Base Package

Silver Package

Gold Package

Common Questions

Upgrade to High-Flow Hot Water with JR Gas & Water

ZipPay – 6-Month Interest-Free on All Products

Humm – Up to 12 Months Interest-Free

Afterpay – 8 Weeks, No Interest

Plenti Finance – For Reclaim Systems Only

General

Policies & Warranties

Service Areas

Technical

We accept

Vulcan DUOMAX 26 Instant Gas Hot Water System | Supply+Install | LIFETIME WARRANTY

Check the Winners of our 2025 BEST INSTANT GAS HOT WATER system awards

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

Vulcan DUOMAX 26 Continuous Flow Gas Hot Water System – Supply & Installation Brisbane & Gold Coast

Key Features of the Vulcan DUOMAX 26

Who’s It Best For?

Why Choose JR Gas & Water?

Installation Packages Available

Base Package

Silver Package

Gold Package

Common Questions

Upgrade to High-Flow Hot Water with JR Gas & Water

ZipPay – 6-Month Interest-Free on All Products

Humm – Up to 12 Months Interest-Free

Afterpay – 8 Weeks, No Interest

Plenti Finance – For Reclaim Systems Only

General

Policies & Warranties

Service Areas

Technical

We accept