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Rinnai 400L Hot Water System: High-Capacity, Reliable & Energy-Efficient
The Ultimate Hot Water Solution for Large Households
The Rinnai 400L Electric Hot Water System (HFE400S) is built to meet the high-demand hot water needs of large households with 8 or more occupants. Designed for efficiency, durability, and powerful performance, this high-capacity storage system ensures your home never runs out of hot water, even during high demand periods, thanks to its top heating element.
Constructed with a vitreous enamel-lined steel tank, this heavy-duty system is designed to last, providing long-term reliability for internal or external installations. With mains-pressure water delivery, multiple taps can run simultaneously without drops in performance—perfect for busy households.
Why Choose the Rinnai 400L?
✅ Massive 400L Capacity – Perfect for Large Households
✔ Designed for 8+ occupants, ensuring consistent hot water for showers, dishes, and laundry. ✔ The bottom heating element ensures that the entire tank is heated efficiently, maintaining strong water pressure even during peak usage times. ✔ Maintains strong water pressure with mains-pressure capability at multiple taps. ✔ Ideal for off-peak energy tariffs, helping reduce electricity costs.
✅ Durable & Built to Last
✔ Vitreous enamel-lined steel tank provides superior corrosion resistance & long-term durability.
✔ Inbuilt anode protection extends the tank’s lifespan, reducing maintenance needs.
✔ Factory-backed 10-year cylinder warranty for peace of mind.
✅ Energy Efficiency & Solar Compatibility
✔ Multiple element configurations, where the heating element heats the entire tank efficiently, allow you to choose the best setup for your household’s needs.
✔ Compatible with PV solar systems, helping reduce reliance on grid electricity.
✔ Option to install a timer with JR Gas & Water to optimize PV-generated power usage.
✅ Easy Installation & Flexible Setup for Internal and External Use
✔ Dual inlets & outlets make for a quick and hassle-free installation. The top heating element specifically heats the upper portion of the water in the cylinder during periods of high demand, ensuring a consistent supply of hot water. ✔ Suitable for both internal & external installation, ensuring versatility. ✔ Thermostatically controlled safety shut-off for enhanced user protection.
Energy Efficiency & Smart Savings
🌱 Lower Running Costs – Works efficiently with off-peak energy tariffs for cost savings.
🔋 Solar-Ready – Compatible with PV solar systems, reducing electricity consumption.
💡 Safe & Smart Operation – Thermostatically controlled shut-off prevents overheating.
Safety and Security
Ensuring Peace of Mind with Advanced Safety Features
The Rinnai 400L Electric Hot Water Storage Tank prioritizes safety and security with its advanced features. Equipped with a safety temperature shut-off, the system automatically turns off the heating element in case of an emergency, providing added peace of mind for households with children or elderly members. The tank’s vitreous enamel lined steel construction ensures durability and resistance to corrosion, significantly reducing the risk of leaks or other safety hazards. Designed for both internal and external use, the Rinnai 400L offers flexible installation options to suit various household needs, ensuring reliable and safe hot water delivery.
Key Specifications
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Brand: Rinnai
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Model: HFE400S
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Capacity: 400L
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Height: 1820mm
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Width: 625mm
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Dry Weight: 96kg
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Cylinder Material: Vitreous enamel-lined steel
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Installation: Internal or external
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Energy Source: Electric
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Inlet/Outlet Configuration: Dual inlets & outlets
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Warranty: 10-year cylinder warranty
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Product Line: Hotflo Electric
Installation and Maintenance
Hassle-Free Setup and Long-Term Care
The Rinnai 400L Electric Hot Water Storage Tank is designed for hassle-free installation and maintenance. Its standardized sizing and design enable minimal changeover costs, making it easy to update or replace an existing tank. The system’s thermostatically controlled heating elements ensure efficient hot water delivery, while the twin element configurations provide faster recovery times and increased efficiency. The tank’s manual hot water selection and storage tank design make it easy to use and maintain. With its durable construction and minimal maintenance requirements, the Rinnai 400L Electric Hot Water Storage Tank provides a reliable and efficient source of hot water for households.
Warranty and Support
Comprehensive Coverage for Your Investment
The Rinnai 400L Electric Hot Water Storage Tank comes with a comprehensive warranty and support package. Backed by a 10-year cylinder warranty, this system offers peace of mind and protection for your investment. Rinnai’s dedicated customer support team is available to assist with any questions or concerns, ensuring that you receive the help you need to get the most out of your hot water system. With its powerful hot water output and efficient performance, the Rinnai 400L Electric Hot Water Storage Tank is a reliable choice for households seeking a high-quality hot water solution.
Why Choose JR Gas & Water for Your Installation?
🏆 Award-Winning Service – Recognized as Best Plumbers & Best Home Care Store (2023, 2024, 2025).
🔧 Expert Installation – Our licensed professionals ensure quick, hassle-free installation with minimal disruption.
💡 Energy-Saving Advice – We help you maximize savings with off-peak tariff compatibility and solar integration.
🛠 Reliable After-Sales Support – We offer ongoing service, maintenance & warranty support.
Upgrade to the Rinnai 400L Electric Hot Water System today and enjoy powerful, efficient, and long-lasting hot water tailored to your home’s needs.
📅 Book Your Installation Now
Flexible Payment Options Available
💳 Buy Now, Pay Later with ZipPay, Humm & Afterpay – Flexible payment plans to suit your budget.
✔ ZipPay – Interest-free payments for up to 6 months.
✔ Humm – Spread payments over 12 months for larger purchases.
✔ Afterpay – Split your purchase into 4 interest-free payments over 8 weeks.
Learn More About Payment Options
Final Thoughts: Why Choose the Rinnai 400L?
The Rinnai 400L Electric Hot Water System is the perfect solution for large households looking for high-capacity, energy-efficient, and reliable hot water. With mains-pressure water flow, multiple energy-saving configurations, and a robust 10-year warranty, this system delivers long-term performance while keeping energy costs in check.
Backed by expert installation from JR Gas & Water, you can trust that your system will be installed correctly and built to last.
Upgrade your hot water system today!
📅 Book Your Installation Now
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Ex: Shipping and return policies, size guides, and other common questions.
Electric Hot Water System Package Selection Guide
(Please rotate mobile device to landscape for easy viewing)
Choosing the right electric 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.
💡 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 of Existing EXTERNAL installations
Ideal for 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 similar system and working to a tight budget.
(EXAMPLE - Swapping a 10year old Rheem 250L with a new Rinnai 315L 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.
(EXAMPLE - Swapping a 20year old Dux 125L with a new Vulcan 315L, 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.
(EXAMPLE - Swapping an old heat pump with a new Everhot 400L that requires a hardwired electrical connection, 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.
(EXAMPLE - Swapping an old Gas System with a new Rheem 315L 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.
(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 |
| Support Base (For Uneven or Soft Ground) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| Waste & System Disposal (Old System Removal) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| System Drainlines (Prevents Flooding & Improves Longevity) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| Electrical Isolator (Ensures Safe Operation & Maintenance Access) | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |
| Electrical Extension (Required for Distance to Power Source) | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |
| 🏆 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!
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
Brand - Rinnai
Model Number - HFE400S
Volume - 400L
Width - 625mm
Height - 1820mm
Manufactured In - Australia
Cylinder/ Heat Exchange Material - Steel
Cylinder/Heat-Exchange Warranty - 10 Years
Noise Level - NAdBa
Dry Weight - 96kg
Energy Source - Electric
Wifi Controller Built in or Compatible - No
Built In Timer - No
LED/LCD Status Indicator - No
Coefficient of Performance (COP) -
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.
