🏷️ Brand – Dux
🔢 Model Number – 285DHA20
💧 Volume (L) – 285
👨‍👩‍👧‍👦 Recommended Maximum Number of Occupants – 5
💰 Estimated Annual Savings* – $$1267.78
📊 Coefficient of Performance (COP) – 4.5
🔌 Electrical Connection Type – Hardwired 10amp
📏 Width – 665mm
📏 Height – 1865mm
⚖️ Weight – kg
🌍 Manufactured In – Australia
🔩 Cylinder/Heat Exchange Material – Steel/Enamel
🛡️ Cylinder/Heat-Exchange Warranty – 7 Years
🔇 Noise Level – 48 dBa
🛏️ Avoid Install Next to Sleeping Areas –
⚡ Energy Source –
📡 WiFi Controller Built In or Compatible – No
⏲️ Built-In Timer – Yes
💡 LED/LCD Status Indicator – Yes

Dux Ecosmart 285L Heat Pump – Energy-Saving Hot Water for Large Homes

The Dux Ecosmart 285L Heat Pump is the ultimate energy-efficient hot water system designed for larger households. Engineered for maximum energy savings, this high-capacity heat pump uses up to 75% less electricity than standard electric storage systems, significantly reducing your power bills while delivering consistent, reliable hot water year-round.

With a high Coefficient of Performance (COP) and built-in intelligent heating controls, the Dux Ecosmart 285L is an eco-friendly, cost-effective solution perfect for Australian homes looking for sustainable, high-performance hot water heating.

Why Choose the Dux Ecosmart 285L Heat Pump?

✔ High Energy Savings – Uses advanced heat pump technology to cut electricity use by up to 75% compared to traditional electric storage water heaters.

✔ Ideal for Larger Households – Designed to provide ample hot water for 3-6 people, ensuring no one runs out of hot water.

✔ Smart LCD Controller – Customisable settings allow for efficient operation, temperature control, and scheduling.

✔ Quiet Operation – Engineered for low noise output, making it perfect for suburban homes.

✔ Built-in Boost Mode – Automatically switches to an electric boost when needed for high-demand periods.

✔ 7-Year Tank Warranty – Industry-leading protection for peace of mind.

✔ Government Rebates Available – Eligible for Small-scale Technology Certificates (STCs), reducing upfront installation costs.

Dux Ecosmart 285L Heat Pump – Key Features

1. Advanced Heat Pump Technology for Maximum Efficiency

✔ Extracts heat from the surrounding air to warm your water, using a fraction of the energy of standard electric systems.
✔ High Coefficient of Performance (COP) of up to 4.5, ensuring lower electricity costs and reduced carbon footprint.
✔ Optimised for Off-Peak Use, making it solar PV-friendly for further savings.

2. Intelligent LCD Controller for Smarter Hot Water Management

✔ Digital display with multiple settings – Easily adjust temperature and boost heating when needed.
✔ Self-Diagnostic System – Monitors system health and efficiency for reliable performance.
✔ Frost Protection & Anti-Legionella Cycle – Ensures hygiene and durability in all weather conditions.

3. Built Tough for Australian Conditions

✔ Durable, Corrosion-Resistant Tank – Designed for long-lasting performance even in coastal areas.
✔ Heavy-Duty Anode Protection – Extends the lifespan of the cylinder.
✔ Suitable for All Climates – Operates in temperatures as low as -5°C, ensuring year-round performance.

4. Quiet & Space-Saving Design

✔ Ultra-Quiet Operation – Advanced noise reduction makes it perfect for residential installations.
✔ Compact Footprint – Fits easily into most home setups, making installation hassle-free.
✔ Great for Large Families – Provides reliable, energy-efficient hot water for 3-6 people.

Dux Ecosmart 285L Heat Pump – Technical Specifications

Feature	Specification
Brand	Dux
Model	285DHA20
Storage Capacity	285L
Energy Source	Heat Pump (Electric)
Coefficient of Performance (COP)	Up to 4.5
Height	1865mm
Diameter	620mm
Depth (including cover)	665mm
Noise Level	Low (Designed for quiet operation)
Built-In Timer	Yes
WiFi Controller Compatibility	No
Operating Temperature Range	-5°C to 45°C
Element Rating	1800W (for boost mode)
Tank Material	Vitreous Enamel Lined Steel
Cylinder/Heat Exchanger Warranty	7 years (3 years refrigeration parts, 1 year labor)
Recommended Occupants (Off-Peak)	3-6 People
Rebates	Eligible for STC Government Rebates

Why the Dux Ecosmart 285L Heat Pump is a Smart Investment

Dux has been a trusted leader in Australian hot water solutions for over 100 years. The Ecosmart 285L Heat Pump is a premium, energy-efficient alternative to traditional electric storage hot water systems, designed to reduce power bills while ensuring long-term durability.

With rebates available, ultra-efficient heating performance, and a 7-year tank warranty, the Dux Ecosmart 285L offers exceptional value for Australian households looking for an eco-friendly hot water upgrade.

💰 Upgrade your hot water system today & start saving! 💰

🚀 Order now & get expert installation from JR Gas & Water! 🚀

Heat Pump Hot Water System Package Selection Guide

(Please rotate mobile device to landscape for easy viewing)

Choosing the right heat pump hot water system package depends on your installation requirements, household size, and whether additional electrical or plumbing work is needed. 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 exact make/model direct swaps where the existing system meets compliance. No extra plumbing or electrical work included.

(EXAMPLE - A Rheem 250L 491250 replacing complaint Rheem 250L 491250 not a Rheem 250L 101250)

✅ Silver – For minor upgrades
Includes pipework alterations and a valve kit but does not include electrical modifications or system disposal. Designed for those swapping a heat pump under 10 years old and working to a tight budget.

(EXAMPLE - Swapping a 10year old Rheem/Rinnai heat pump with a new one 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. Excludes electrical circuit modifications.

(EXAMPLE - Swapping a 20year old Dux heat pump with a new Rinnai GR Series. Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

💰 Sapphire (Best Value) – For installations requiring electrical work
Adds electrical safety features like an isolator, safety switch, and cable extensions to ensure a compliant and safe electrical connection. Perfect for those swapping out an electric hot water system, heat pump with different electrical connection type or split solar system (tank on ground/panels on roof)

(EXAMPLE - Swapping an old electric system with a new iStore that has a different electrical connection type, then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

✅ Diamond – For homes needing extensive electrical work
Provides extra plumbing and electrical modifications, including a new electrical circuit, making it ideal for homes without existing wiring for an electric system. Designed for those swapping from a gas system or where a larger electrical circuit is needed

(EXAMPLE - Swapping an old Gas System with a new Enviroheat that needs its own dedicated electrical circuit, type 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 electrical upgrades, and a new electrical circuit for complete installation flexibility. Perfect for swapping and relocating and system type including solar tanks on single story roofs.

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

🏆 Package Comparison Guide

Feature	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
Existing Unit Must be Identical Make/Model/Series as Purchase	✅	❌	❌	❌	❌	❌
Form 4 (Compliance Certification)	✅	✅	✅	✅	✅	✅
Pipework Alterations	❌	✅	✅	✅	✅	✅
Valve Kit (Required for System Operation)	❌	✅	✅	✅	✅	✅
Included Altered Pipework (m)	❌	2m	8m	8m	8m	20m
🏆 Package Comparison Guide	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
Waste & System Disposal (Old System Removal)	❌	❌	✅	✅	✅	✅
Electrical Isolator (Ensures Safe Operation & Maintenance Access)	❌	❌	❌	✅	✅	✅
Electrical Extension	❌	❌	❌	✅	✅	✅
🏆 Package Comparison Guide	Base	Silver	Gold 🏆 Best Seller	Sapphire 💰 Best Value	Diamond	Platinum
New Electrical Circuit (For Homes Without Existing Power Supply)	❌	❌	❌	❌	✅	✅
Safety Switch (Protects Your Home from Electrical Faults)	❌	❌	❌	✅	✅	✅
Included Altered Cabling (m)	❌	❌	❌	2m	10m	10m
System Relocation (Move System to New Position)	❌	❌	❌	❌	❌	✅
Requires Existing Installation to be Compliant	✅	✅	❌	❌	❌	❌

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! 🚀

STC stands for Small-scale Technology Certificate. It’s part of the Australian Government’s Renewable Energy Target program, created to reward Australians who install eligible energy-efficient systems, such as heat pump or solar hot water systems. When a system like this is installed, it’s awarded a certain number of certificates based on its efficiency, the location of installation, and the amount of renewable energy it’s expected to produce or offset over time. Each certificate holds a monetary value, which acts as an upfront rebate.

How Do STC Rebates Work?

Rather than applying for the rebate after installation, JR Gas & Water includes the value of the STCs directly in the price shown on each product page. This means what you see is the final out-of-pocket cost to you — no separate rebate forms, no waiting, no surprises. We claim the STCs on your behalf and handle the paperwork behind the scenes so that your purchase is smooth, simple, and fully compliant.

Who Is Eligible?

You’re generally eligible for STCs if you’re installing a new, approved system at a residential or small business property within Australia. The installation must be completed by a qualified installer, and the system must meet current Australian standards. All heat pumps and solar hot water systems sold and installed by JR Gas & Water are STC-approved, and our team ensures each installation qualifies properly.

Final Word

All pricing on the JR Gas & Water website includes the STC rebate already applied, so what you see is what you pay. We manage the rebate process from start to finish, so you can enjoy a lower price without any paperwork or hassle. Whether you're upgrading your hot water system for efficiency, savings, or reliability, the STC rebate is already working in your favour — and JR makes sure it stays that way.

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

Estimated annual savings are calculated by comparing the heat pump’s energy efficiency (measured as COP – Coefficient of Performance) against a standard electric hot water system with a COP of 1.0. For example, if a heat pump has a COP of 4.0, it uses 75% less electricity to deliver the same amount of hot water.

Savings are based on average household usage for a family of five on Tariff 11 (general usage tariff), using manufacturer-stated COP values. The higher the COP, the greater the energy savings.

Bonus savings: When paired with a solar PV system, energy costs can drop even further — with some households seeing up to 50% additional savings, especially when the heat pump runs during solar generation times.

Disclaimer:

All estimated savings are based on manufacturer-provided COP values and standard usage assumptions (e.g. a family of five on Tariff 11). These figures are intended as a general guide to help compare different hot water units and technologies. Actual savings may vary depending on your household’s usage, energy rates, and installation conditions. We recommend conducting your own research or consulting an energy advisor to assess what’s best for your specific setup.

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.

Dux Ecosmart 280L | Supply+Install | LIFETIME WARRANTY

Dux Ecosmart 285L Heat Pump – Energy-Saving Hot Water for Large Homes

Why Choose the Dux Ecosmart 285L Heat Pump?

Dux Ecosmart 285L Heat Pump – Key Features

1. Advanced Heat Pump Technology for Maximum Efficiency

2. Intelligent LCD Controller for Smarter Hot Water Management

3. Built Tough for Australian Conditions

4. Quiet & Space-Saving Design

Dux Ecosmart 285L Heat Pump – Technical Specifications

Why the Dux Ecosmart 285L Heat Pump is a Smart Investment

Heat Pump Hot Water System Package Selection Guide

(Please rotate mobile device to landscape for easy viewing)

💡 Which Package is Right for You?

🏆 Package Comparison Guide

🛠 Need Help Choosing?

How Do STC Rebates Work?

Who Is Eligible?

Final Word

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

Licensed & Trusted Installation Experts

General

Policies & Warranties

Service Areas

Technical

We accept

Dux Ecosmart 280L | Supply+Install | LIFETIME WARRANTY

Check the Winners of our 2025 BEST HEAT PUMP HOT WATER system awards

Dux Ecosmart 285L Heat Pump – Energy-Saving Hot Water for Large Homes

Why Choose the Dux Ecosmart 285L Heat Pump?

Dux Ecosmart 285L Heat Pump – Key Features

1. Advanced Heat Pump Technology for Maximum Efficiency

2. Intelligent LCD Controller for Smarter Hot Water Management

3. Built Tough for Australian Conditions

4. Quiet & Space-Saving Design

Dux Ecosmart 285L Heat Pump – Technical Specifications

Why the Dux Ecosmart 285L Heat Pump is a Smart Investment

Heat Pump Hot Water System Package Selection Guide

(Please rotate mobile device to landscape for easy viewing)

💡 Which Package is Right for You?

🏆 Package Comparison Guide

🛠 Need Help Choosing?

How Do STC Rebates Work?

Who Is Eligible?

Final Word

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

Licensed & Trusted Installation Experts

General

Policies & Warranties

Service Areas

Technical

We accept