Dux 400L (400T1) Electric Hot Water System Installed

Dux 400L (400T1) Electric Hot Water System Installed - JR Gas and Water

Dux 400L (400T1) Electric Hot Water System Installed

STEP 1. - Select External Installation Replacement Package
STEP 2. - Select Preferred Installation Day
STEP 3. - Select Installation Area
Regular price $2,099.00 Sale price $1,699.00 Save $400
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Brand - Dux
Model Number - 400T1
Volume - 400L
Width - 705mm
Height - 1705mm
Manufacturered In - Australia
Cylinder/ Heat Exchange Material - Steel Enamel
Cylinder/Heat-Exchange Warranty - 10 Years
Noise Level - NAdBa
Dry Weight - 115kg
Energy Source - Electric
Wifi Controller Built in or Compatible - No
Built In Timer - No
LED/LCD Status Indicator - No

Maximize Your Comfort with the Dux 400L 400T1 Electric Hot Water System

Seeking a reliable electric hot water solution for a large household? The Dux 400L 400T1 may be your answer, offering a hefty 400-litre capacity and consistent performance tailored for heavy usage. Dive into the specifics of what makes this dux 400l 400t1 electric hot water system a contender in its class, as we dissect its installation, maintenance, energy consumption, and longevity, providing clarity without the hard sell.

Key Takeaways

  • The Dux 400L 400T1 electric hot water system is engineered for heavy usage with a 400-litre capacity, commercial-grade construction, and full mains pressure, making it suitable for large households and commercial settings.

  • The system is made in Australia, optimized for local conditions, and designed with a focus on energy efficiency and cost-effectiveness, with a robust design that includes a tough polymer base and larger anode to extend tank life.

  • Professional installation by licensed technicians is recommended for optimal performance, with Dux providing a 10-year warranty on the tank and versatile options that adapt to both indoor and outdoor settings, thus ensuring long-term customer satisfaction.

Unveiling the Dux 400L 400T1: Your Electric Hot Water Powerhouse

Illustration of a modern electric hot water system

Meet the Dux 400L 400T1, your new hot water system powerhouse. Designed to cater to larger households and commercial use, this electric hot water system boasts the following features:

  • 400-litre capacity, ensuring you never run out of hot water even during peak usage times

  • Full mains pressure delivery

  • Larger anode to extend tank life

  • Tough polymer base to ensure durability

  • Y class commercial grade enamel coating that withstands rigorous use

The Dux Proflo water heaters are engineered with full flow pressure for robust hot water flow, ensuring your showers, dishwashers, and washing machines never experience a cold surprise. So, whether you’re considering replacing your existing water heater or planning to install a new hot water system, the Dux 400L 400T1 stands as a reliable and efficient choice.

Tailored for Australian Homes: The Local Edge

Proudly manufactured in Australia, the Dux 400L 400T1 is more than just a hot water system. It’s a product of meticulous research, design, and craftsmanship that not only understands but also caters to the specific needs of Australian homes. Its full mains pressure delivery ensures consistent and strong water flow to multiple outlets simultaneously, making it an ideal solution for larger households.

With a long-standing history of prioritizing product quality and customer satisfaction, Dux has focused its research and development to meet the unique needs of Australian homes. The Dux 400L 400T1 is created with an awareness of the specific requirements for energy efficiency in the Australian market, adhering to local standards in its design. So, when you choose Dux, you’re choosing a product made for you, by you.

Seamless Integration: Installation and Compatibility

One of the key advantages of the Dux 400L 400T1 electric hot water system is its seamless integration with existing setups. The system features water connections on both sides of the tank, providing a streamlined installation process suitable for various indoor and outdoor settings.

Moreover, it aligns seamlessly with existing electric storage water heaters, ensuring smooth replacement and compatibility with the plumbing setups commonly found in Australian homes.

Indoors or Outdoors: Versatility at Its Best

The Dux 400L 400T1’s versatility is second to none; it thrives both indoors and outdoors. But what if you live in a hard water region? No worries, Dux has got you covered. The 400L 400T1 model offers an option with a heavy-duty anode to provide additional protection and prolong the system life, ensuring you get the most out of your hot water system regardless of your water conditions.

Customizable solutions such as the external installation capability and the option to be installed indoors allow the Dux 400L Proflo, including the 400T1 model, to meet various spatial requirements in different homes. So, whether you live in a compact apartment or a spacious house, the Dux 400L 400T1 can easily adjust to your space, ensuring you enjoy uninterrupted hot water supply without compromising on comfort or aesthetics.

Professional Support: Ensuring Customer Satisfaction

At Dux, customer satisfaction is more than just a goal; it’s a commitment. This is why Dux emphasizes the importance of professional installation and servicing conducted by licensed technicians for ensuring compliance with safety standards and achieving customer satisfaction. The installation of the Dux 400T1, which requires external setup, must be carried out by a licensed plumber to ensure safety and professionalism.

Hot Water Shop’s licensed technicians and plumbers specialize in a variety of hot water systems including:

  • Electric

  • Gas

  • Solar

  • Heat pump systems

Following Dux’s recommendations, the use of a licensed tradesperson for installation and servicing is critical for the hot water system’s optimal performance and longevity. Thus, when you choose Dux, you’re not just choosing a product, you’re choosing a lifelong support system that ensures your hot water needs are taken care of in the most professional manner.

Built to Last: Quality and Durability Features

Photo of a durable polymer base for the Dux 400L 400T1

Constructed with a tough polymer base and Y class commercial grade enamel, the Dux 400L 400T1 offers superior resistance to damage and moisture. This resilience is further enhanced by an enhanced anode that mitigates corrosion, significantly improving the tank life and ensuring long-term reliability.

Designed to tackle the challenging Australian conditions, the Dux 400L 400T1 features moisture features durable:

  • Durability features like polymer bases and vitreous enamel tailored for local climates

  • Minimal maintenance requirements

  • Extended service life, contributing to lower cost of ownership over time.

So, when you choose the Dux 400L 400T1, you’re choosing a product with a long service life that’s built to last.

Energy Efficiency and Performance: Eco-Friendly and Cost-Effective

The Dux 400L 400T1 offers:

  • Comfort and convenience

  • Energy efficiency

  • Full mains pressure, ensuring full flow pressure to all outlets

  • Consistent water temperature and pressure across all household applications

Designed with a focus on energy efficiency, the 400L 400T1 model offers the following benefits:

  • 3.6 kW energy supply configuration

  • Robust design and manufacturing practices

  • Optimized performance, reducing energy wastage

  • Potential cost savings over time

So, when you choose the Dux 400L 400T1, you’re not just choosing a hot water system; you’re choosing an eco-friendly and cost-effective solution to your hot water needs.

A Warranty You Can Trust: The Assurance of Longevity

Illustration of a warranty certificate for the Dux 400L 400T1

The Dux 400L Proflo electric hot water system comes with a 10-year warranty on the tank and a 1-year warranty on parts and labour, ensuring long-term reliability and peace of mind. Within the first year, the warranty includes labor costs for any cylinder issues, providing immediate support for new installations.

Dux offers the following warranty for their water heaters:

  • The water heater tank will be replaced free of charge if it fails within the warranty period.

  • After the first year, the owner is responsible for installation and other labor costs.

  • The warranty only covers the water heater and original components supplied by Dux, and does not cover items provided by the installer or external causes.

The Dux Marathon Warranty backs the 400T1 model, ensuring customers of the quality in design and manufacturing that is expected to result in long-term satisfaction. So, when you choose the Dux 400L 400T1, you’re choosing a product backed by a warranty you can trust.

The Gold Coast Connection: Local Availability and Service

The Dux 400T1 Proflo 400L Electric Storage water heater is distributed widely with availability in cities like Brisbane, Melbourne, and Sydney, indicating accessibility for Gold Coast residents. Dux’s Australian heritage, dating back to 1915, and its base in the NSW highlands, underpin a robust regional support network that Gold Coast customers can rely on.

Ryan Old Plumbing provides Gold Coast and Brisbane residents with dedicated services such as the installation, repair, and maintenance of Dux hot water systems. Gold Coast customers are protected by a comprehensive warranty and consumer protection laws, offering reassurance for the replacement or repair of their Dux 400L 400T1 Electric Storage water heater.

So, when you’re on the Gold Coast, rest assured, Dux has got your back!

Maximizing Tank Life: Maintenance Tips and Tricks

To maximize the tank life of the Dux 400L 400T1, it’s important to take care of a few things. The Dux 400L 400T1 is equipped with a larger anode, which plays a critical role in combating corrosion and thereby extends the overall lifespan of the tank. Owners have a responsibility to ensure regular upkeep and testing of temperature control devices as recommended by the Australian Standard AS4032.2 to maintain the system’s longevity and increase tank life, making it a tank low maintenance solution.

Maintaining the correct storage temperature is essential; too low temperatures can lead to a shortage of hot water, while excessively high temperatures can increase heat loss and accelerate wear on the water heater. So, with a little care and maintenance, you can ensure your Dux 400L 400T1 stays in top shape for a long time.

Customization and Upgrades: Adapting to Your Needs

Illustration of the twin element 400T2 model for customization and upgrades

The Dux 400L 400T1 is not a one-size-fits-all product. It offers customization and upgrade options to cater to your unique needs. The Dux 400T2 model is an upgrade from the single element Dux 400T1 model, offering twin element flexibility to meet various hot water heating requirements. Both the Dux 400L T1 and T2 models come with a standard energy supply configuration of 3.6kW, with the T2 model additionally offering a 2 x 3.6kW configuration for a faster recovery time.

Dux provides a selection of tank sizes to cater to the specific needs of households of different sizes. Customers seeking to enhance their system’s efficiency can opt for an upgrade to a 3.6 kW heating element. So, whether you’re a small family or a large one, the Dux 400L 400T1 offers a solution that’s just right for you.


In conclusion, the Dux 400L 400T1 electric hot water system is a powerful, reliable, and efficient solution that caters to the hot water needs of larger households and commercial settings. Proudly manufactured in Australia, it offers superior quality, durability, and energy efficiency. With its seamless integration, professional support, and comprehensive warranty, the Dux 400L 400T1 stands as a testament to Dux’s commitment to quality and customer satisfaction. Whether you’re in Brisbane, Melbourne, Sydney, or the Gold Coast, the Dux 400L 400T1 is an investment that promises to deliver comfort, convenience, and cost savings for years to come.

Frequently Asked Questions

What brand of hot water system is most reliable?

You can rely on brands like Bosch, Dux, Sanden, Rinnai, and others for a reliable hot water system. Consider their premium products for the best performance.

Which is better Rheem or Dux?

Rheem is the better option when considering a water heater, as it offers strong support to the plumbing industry. Dux's support through their mother brand has declined in comparison.

What makes the Dux 400L 400T1 suitable for larger households and commercial settings?

The 400-litre capacity and full mains pressure delivery of the Dux 400L 400T1 make it suitable for larger households and commercial settings due to its ability to meet high demands for hot water.

Is the Dux 400L 400T1 easy to install?

Yes, the Dux 400L 400T1 is designed for easy installation with water connections on both sides of the tank. It is best to have a licensed plumber handle the installation for safety and expertise.

What are some of the durability features of the Dux 400L 400T1?

The Dux 400L 400T1 features a tough polymer base, Y class commercial grade enamel, and an enhanced anode to improve durability and resistance to damage and corrosion. These features contribute to its extended tank life.

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.


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Reviews From Our Customers


Great service. We were about to move into a house without hot water! Were able to get to us urgently and have us up and running. Professional, friendly service! Reasonable pricing too.


The JR Gas and Water team was very professional and friendly. They arrived on time and exchanged my hot water system within 2 hours. Will definitely use them again in the future.


Not only is the service incredible, the quality of the work is too! The digital quotes are detailed, so you know exactly what you are paying for (and why). Jarred was prompt, efficient, and highly skilled.


I called JR Gas and Water at 9.30 Saturday morning and he arrived at appointment time 11.30 Saturday morning.
Job complete, waste and packaging removed.
Highly recommend this service.
Super Friendly, very efficient.


I recently contacted JR Gas & Water as I needed a new electric hot water system suppled and installed. Their website is informative and easy to navigate and the quote and booking process very straight-forward. The service I experienced from my initial phone enquiry with Jay all the way through to the punctual and professional installation by Sean was absolutely amazing! The service provided far exceeded my expectations. I highly recommend JR Gas & Water.


Accurate on time and easy to read quotes. They arrived on schedule and we’re in and out with hot water going again in no time. There was no mess left behind it was easy and hassle free


Very informative in helping me choose a hot water system that suited my needs. Competitive prices. Quick and reliable service.Happy with my product and highly recommend this company for your hot water needs


JR Gas and Water were fast, efficient and very reliable. They sent a quote quickly that was itemised and comprehensive. I was able to approve the quote online and they were out the next day to fit the new hot water system. As the family have a very ill family member we were all very grateful. We had tried another service just before this company and they were all over the show with lots of comments about "extras", after providing an initial quote. So glad we changed to JR Gas and Water!


You wont see reviews this good anywhere else.

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