Dux Ecosmart 400L Solar Hot Water System $6199 Installed - Water Heaters

Dux Ecosmart 400L Gas Hot Water System | Supply+Install | LIFETIME WARRANTY

Hot water, hassle-free. This Dux is built for families who value reliability, efficiency, and peace of mind. With expert installation and unbeatable service, you’re in the best hands!
$8,049.00
💰 Save an Additional $100 When You Order Online
🔥 Limited Stock! Only 2 Left! Order now before we run out!
  • Greater Brisbane
  • Gold Coast
  • Sunshine Coast, Scenic Rim, Bay Islands, Bribie Island, Toowoomba & Lockyer Valley (via quote request only)
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BASE RATE - Perfect for those who wish to install the exact make and model as their current system. Note the existing system must be compliant with current standards for this package to apply.

plus SILVER INCLUSIONS - Designed for those switching from a similar system and wanting to upgrade to valve and pipework so its all new, complaint and working effectively. Please note reusing old valves can effect your product warranty. Note the existing installation must have compliant drains and support base for this package to apply.

plus GOLD INCLUSIONS - Our most popular package for the do it right the first time person. Strip it all down and redo all the pipework, valves, fit a new support base, run drains to a compliant discharge point then dispose of the old unit.

plus PLATINUM INCLUSIONS - Designed for those wanting to relocate their existing system to a new location and upgrade the unit as well. Perfect for those converting from solar or gas or moving that suspect unit from inside to outside.
STEP 1. - Select Post Rebate Installation Package (STC Rebates signed over to JR Gas & Water on install)
STEP 2. - Select Preferred Installation Day
STEP 3. - Select Installation Area
⭐ Most people choose the "Gold Package" for full service & 🔥 "Express Installation" for fast, reliable hot water!
  • Free SEQ shipping
  • Returns Available
  • Secure payments
  • Fun Fact - Converting to a heat pump hot water system could save a family as much as $27,000 over the life of the system
Price
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Check the Winners of our 2025 SOLAR HOT WATER system awards

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

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Dux Ecosmart 400L Solar Hot Water System – Supplied & Installed in Brisbane & Gold Coast

Got a large household with big hot water needs? The Dux Ecosmart 400L Solar Hot Water System delivers high-capacity hot water powered by the sun — helping you slash your energy bills while keeping everyone in the house comfortable. Supplied and installed by JR Gas & Water, Brisbane and Gold Coast’s Best Plumbers and Home Care Store 2023–2025, this system offers maximum performance and energy efficiency for larger families.

Key Benefits of the Dux Ecosmart 400L Solar System

  • Massive 400L Storage – Ideal for 5–7 people, supporting high-demand usage.
  • Solar Powered Savings – Utilises free energy from the sun, cutting electricity bills dramatically.
  • Electric or Gas Boosting – Keeps hot water flowing year-round, no matter the weather.
  • Built Tough for Australia – Durable design to withstand local climate extremes.
  • Government Rebate Eligible – Claim solar rebates to offset installation costs.

Features at a Glance

Feature Details
Storage Capacity 400 Litres
Panels 2–3 Solar Collectors (Based on Roof Size)
Power Source Solar with Electric or Gas Boost
Warranty 7 Years Cylinder / 5 Years Collectors
Suitable for Households 5–7 People

Ready for Installation in Brisbane or Gold Coast?

👉 Click “Add to Cart” or Contact JR Gas & Water to Book Your Installation Today.

Experience expert solar installation with Brisbane and Gold Coast’s trusted hot water professionals.

Features Explained – Why They Matter for Your Family

The Dux Ecosmart 400L is the perfect solution for large homes that want eco-friendly, reliable hot water and big energy savings. With solar heating and booster support, it delivers consistent hot water supply, even on cloudy days.

Big Tank for Big Families: 400L capacity is ideal for 5–7 people, easily handling multiple bathrooms and high water use.

Solar-Powered Efficiency: Collects energy from the sun, reducing your reliance on mains power and helping cut energy bills.

Booster Back-Up: Features electric or gas boosting, so you’re never without hot water, even during poor sunlight.

Made for Aussie Conditions: Engineered for durability, with tough materials built to withstand heat, storms, and daily demand.

Rebate-Eligible: Take advantage of government rebates to make solar water heating more affordable.

Installed by JR Gas & Water, the Dux Ecosmart 400L comes with fast, expert installation and dependable service across Brisbane and Gold Coast.

Questions About the Dux Ecosmart 400L – Answered

1. Is 400L too much for a standard household?
It’s ideal for larger families (5–7 people) or homes with high water usage.

2. How much can I save with solar hot water?
You can save up to 80% on water heating energy costs, depending on usage and climate.

3. What if the sun isn’t out?
The electric or gas booster ensures reliable hot water in all weather.

4. Can I claim rebates for this system?
Yes, it’s eligible for state and federal solar rebates, reducing your upfront cost.

5. How quickly does JR Gas & Water install it?
Most installs are completed same-day, with efficient service across Brisbane and Gold Coast.

Brand - Dux
Model Number - 400DPM36
Volume - 400L
Width - 820mm
Height - 1700mm
Manufacturered In - Australia
Cylinder/ Heat Exchange Material - Steel
Cylinder/Heat-Exchange Warranty - 5 Years
Noise Level - NAdBa
Dry Weight - 116kg
Energy Source - Solar
Wifi Controller Built in or Compatible -
Built In Timer - No
LED/LCD Status Indicator -
Coefficient of Performance (COP) -

If you're in Queensland and considering a heat pump hot water system, look no further than JR Gas & Water. 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 heat pump 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 heat pump 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 heat pump 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 heat pump 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.

Sustainable and Environmentally Friendly: Heat pump hot water systems are a sustainable and environmentally friendly option for heating water. They use renewable energy sources, such as air or ground heat, to heat water, resulting in lower greenhouse gas emissions and reduced energy bills. JR Gas & Water can help you make the switch to a more sustainable and cost-effective solution for your hot water needs.

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FAQs

A heat pump hot water system is an energy-efficient way to heat water for domestic use. It works by using a heat pump to extract heat from the air outside, then transferring it to the water in a storage tank.

The benefits of installing a heat pump hot water system include lower energy bills, reduced greenhouse gas emissions, and a longer lifespan than traditional hot water systems.

The cost of installing a heat pump hot water system in Australia can vary depending on factors such as the size of the system, the complexity of the installation, and the location of the property. On average, prices range from $2,500 to $5,000.

Yes, there are several government rebates and incentives available for installing a heat pump hot water system in Australia. These include the Small-Scale Technology Certificate (STC) scheme, which provides financial incentives for renewable energy systems, and the Renewable Energy Target (RET) scheme, which aims to increase the use of renewable energy sources.

The installation time for a heat pump hot water system can vary depending on the complexity of the installation and the size of the system. On average, installation can take between 2-3 hours.

Yes, like all hot water systems, heat pump hot water systems require regular maintenance to ensure they are working efficiently and to prolong their lifespan. This includes checking the system's filters, cleaning the coils, and checking the refrigerant levels.

Heat pump hot water systems typically last between 10-15 years, although this can vary depending on the quality of the system, the frequency of maintenance, and the level of usage.

Yes, heat pump hot water systems can be installed in most types of properties, including residential homes, commercial buildings, and apartments.

Yes, installing a heat pump hot water system can have environmental benefits, such as reducing greenhouse gas emissions and helping to conserve natural resources. However, it's important to ensure that the system is installed correctly and that the property has adequate ventilation to avoid any negative environmental impacts.

Choosing the right size heat pump hot water system for your property will depend on several factors, including the number of people in the property, the level of hot water usage, and the climate in the area. A qualified installer can help you determine the right size system for your needs.
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