Rheem 400L Electric Hot Water System

Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today
Rheem 400L Electric Hot Water System - Installed Today

Rheem 400L Electric Hot Water System

Installed Today, Enjoyed Tomorrow. Seamless Service, Every Time
  • * Element may be supplied separately if specific kW rating is not available.
Regular price $1,949.00
  • Express Delivery to Metropolitan Cities
  • Over 90% of Systems Delivered Same Day
  • Secure payments
  • South East QLD Installation Available
  • Same Day Installation Option
  • In stock, ready to ship
  • Inventory on the way
Tax included. Shipping calculated at checkout.

From our customers


These guys are great and their service is outstanding. My hot water failed and the next day I rang at 8.45am to see if they could help and they had a new system in stock and the same day they came out at 1.00pm and had it working at 2.30pm with a complete upgrade with new valves and pipework and they even put a drain in for the overflow. Josh and Shane who came out were not only friendly and helpful but are super professionals and know exactly what to do and I can't recommend these people highly enough. The price they quoted me was not only competitive but the work was outstanding. 5 plus!

Graham N
Brisbane, QLD

Highly recommend you purchase your hot water system from Installed today. I obtained 3 quotes from local plumbing stores and a further 3 quotes from online retailers. Installed today was the most competitive. I ordered at lunchtime and by 9am the next day my new hot water system was delivered. Under 24hrs wow!. The delivery person even wheeled it around to the side of the house for me. Thanks for providing such a competitive price and the fast service was a bonus. You put bunnings, tradelink and Reece to shame.

Mark H
Brisbane, QLD

Sean phoned to confirm what time he would be on-site to remove and install the new Rheem Hot water cylinder. He arrived on time and set about removing the old cylinder and installing the new . He worked non stop with the installation which was completed to a very high standard. He cleaned up any mess and after loading the truck he ran through the install showing me what did what and if I had any problems to let the company know. It was good to see a conscientious tradesman at work.Thanks Sean, a great job

Gill S
Brisbane, QLD

Josh and Brandon arrived on site and explained what they were going to do. Took minimal time to do the job and explained the warranty and maintenance procedures before they left. They gave me peace of mind by stating they would return within the 10 year warranty period if any trouble occurred with the system. I found both boys to be polite and courteous and took the time at the end to show what was replaced and how to operate it. From start of the booking process at 7:30 am to the completion of the job at 3:00 pm the same day,

Bruce P
Brisbane, QLD

I actually phoned Jared by error - I am so glad I did! - he straight away asked if he could help ! and he had a plumber on sight quickly and replaced a hot water system professional and on time

Lorraine K
Brisbane, QLD

Best service ever ! I have been given quick response and converting gas HWU to electrical HWU including cooktops.Workdone as per mentioned. Jarred and Mark both providing alternative solution to install the units and new electrical work. Helpful and informative which giving me big relief and ready for Christmas !

Brisbane, QLD

Maximize Hot Water Comfort with the Rheem 491400 400L Electric Hot Water System

If you’re considering a new hot water system, you’ll want one that offers both high capacity and energy savings. The Rheem 491400 400L electric hot water system is designed to meet these needs, providing ample hot water for large households with its 400L capacity while being energy-efficient. This article will review its key features, including installation, energy efficiency, and how it can serve your specific hot water demands without overwhelming your utility bill.

Key Takeaways

  • The Rheem 491400 400L electric water heater offers high-efficiency heating, reduced running costs, and is designed specifically for Australian households with a tailored and seamless integration.

  • Featuring easy installation with dual handed fittings and compatibility with both indoor and outdoor settings, this water heater accommodates different household sizes and seamless upgrades due to its common Australian dimensions and fitting locations.

  • This system boasts energy efficiency through its insulation and compatibility with off-peak tariffs and PV systems, which offers the potential for substantial cost savings and supports eco-friendly energy usage.

Understanding the Rheem 491400 400L Electric Water Heater

Rheem 491400 400L electric hot water system

The Rheem 491400 400L electric water heater is more than just a standard water heater. It’s a tailored solution designed to cater to the unique needs of residential spaces across Australia. This system, proudly manufactured on home soil, offers an effective balance between high performance and user-friendly operation.

Our existing system has been designed to meet the hot water demands of your household efficiently, making it an ideal choice for those considering a new hot water system.

High-Efficiency Heating

The up to 4.8KW heating element is one of the distinguishing features of this 400L electric water heater. This powerful component guarantees:

  • A steady supply of hot water

  • Adaptability to fluctuating household needs

  • An uninterrupted flow of hot water at your convenience

  • Reduced running expenses

When compared with an old electric water heater, the Rheem 491400 is noticeably superior, boasting significant improvements in performance and cost-efficiency.

Built to Last

Beyond its high-efficiency heating, the Rheem 491400 400L Electric Water Heater is built to last. It comes with a Rheem Ultranamel® coating, a robust protective layer designed to keep the water heater’s cylinder safe. This durable coating doesn’t just offer protection; it also enhances the system’s overall heat retention, making it even more efficient.

To top it off, the system includes a thicker sacrificial anode for additional protection against water borne contaminants, ensuring the water heater’s longevity.

Designed for Australian Homes

The Rheem 491400 400L has been crafted specifically for Australian homes. It boasts common measurements of 1840mm in height, 690mm in width, and 735mm in depth, dimensions typical of existing electric water heaters in Australian homes. These dimensions, coupled with compatible fitting locations, allow it to seamlessly replace older models, providing an easy upgrade or new installation.

Its compatibility with the common footprint of Australian home structures removes the necessity for major structural alterations during the ideal replacement, offering convenience for homeowners contemplating an upgrade.

Installation and Flexibility

Versatile indoor/outdoor placement options for Rheem 491400 400L electric water heater

While the Rheem 400L electric hot water system is a powerhouse in terms of performance, it doesn’t compromise on installation ease and flexibility. The system is designed for straightforward installation, equipped with standardized connections for power and water.

Moreover, it includes dual handed fittings, facilitating greater adaptability during installation.

Compatibility with Your Home

Besides its high performance and effortless installation, the Rheem 491400 400L hot water system is engineered to integrate seamlessly with various Australian home settings. Whether it’s an indoor setting or an outdoor one, this system can accommodate both, making it a versatile choice.

Its dimensions, measuring 1840mm in height and 690mm in width, allow it to fit comfortably into various spaces common in Australian homes. From small households to larger ones with 8 or more inhabitants, the Rheem 491400 400L is capable of satisfying your needs.

Tailored Solutions

In addition to its performance and flexibility, the Rheem 491400 400L electric hot water system can be tailored to accommodate different household sizes. It offers mains pressure capability, allowing for high water pressure across multiple taps.

For larger households, this feature is particularly advantageous, guaranteeing a steady hot water supply, irrespective of the number of taps in use.

Energy Efficiency and Cost Savings

Energy efficiency is one of the notable benefits of the Rheem 400L electric water heater. The system’s compatibility with lower cost tariffs means that users can enjoy noticeable savings on running costs. Moreover, it can be connected to a photovoltaic (PV) system, allowing for the use of solar-generated power.

This facilitates substantial cost reductions, including lower running costs manufactured with the use of sustainable energy, and promotes the use of sustainable energy.

Off-Peak Operation

With its off-peak energy rates, the Rheem 491400 400L Electric Water Heater is designed to help you save on your energy bills. Operating the water heater during off-peak hours, typically nighttime when electricity demand is low, can result in significant cost savings.

Plus, this strategy ensures a sufficient hot water supply for the next day, making it particularly cost-effective for households with predictable hot water usage patterns and reducing the risk of water borne contaminants suitable for growth.

Insulation and Heat Retention

Another energy-saving feature of the Rheem 400L electric hot water system is its insulation, designed to maintain water temperature for extended periods. This advanced insulation not only meets residential energy efficiency needs but also contributes to the system’s overall performance and cost savings.

Warranty and Support

Rheem 491400 400L electric water heater warranty and support

Rheem provides comprehensive support for the 491400 400L electric hot water system, including detailed warranty information and stellar after-sales service. The Owner’s Guide & Installation Instructions offer in-depth information on Rheem’s Warranty, outlining what’s included, terms and exclusions, claims procedure, and relevant Australian Consumer Law information.

After-Sales Service

Beyond warranty, Rheem’s Service offers customer support seven days a week, from 8 am to 8 pm. Whether it’s a repair or replacement of components under the Rheem warranty provisions, Rheem’s trained and qualified national service network in Australia is ready to assist.

The company also provides post-warranty service work and preventative maintenance, ensuring your Rheem 491400 400L electric hot water system continues to operate optimally.

Rheem 491400 400L: The Eco-Friendly Choice

Eco-friendly enhancements for Rheem 491400 400L electric water heater

The Rheem 491400 400L isn’t just about high performance and cost savings - it’s also an eco-friendly choice. The system can be enhanced with add-ons like a JR timer, allowing users to effectively manage surplus solar power for eco-friendly energy management.

Furthermore, its off-peak operation reduces the burden on the electricity grid, aiding in sustainable energy consumption.

Sustainable Hot Water Systems

In addition, the Rheem 491400 400L electric hot water system offers the following features:

  • It can be connected to photovoltaic (PV) systems, enabling users to utilize renewable energy sources.

  • It can connect with different energy tariffs, offering customized energy solutions and potential cost savings.

  • It is an ideal choice for those seeking an eco-friendly hot water system.


In conclusion, the Rheem 491400 400L Electric Water Heater stands as an excellent choice for any Australian home. Its high-efficiency heating, durability, installation flexibility, energy efficiency, and eco-friendliness make it an all-round performer that can cater to a wide range of hot water needs. So why wait? Step into the future of hot water systems with the Rheem 491400 400L - an investment in comfort, savings, and sustainability.

Frequently Asked Questions

What is the most efficient electric hot water heating system?

The most efficient electric hot water heating system is a heat pump water heater, which uses ambient air to heat the water in the tank and is 2-3 times more energy efficient than storage electric hot water systems.

Is a Rheem hot water heater a good brand?

Yes, Rheem hot water heaters are a good brand known for their high-quality and reliable performance. Rheem has been a trusted name in hot water systems since 1939.

What is the life expectancy of a Rheem water heater?

The life expectancy of a Rheem water heater is typically between 5 and 15 years, with proper servicing every 5 years potentially extending its lifespan.

How long does it take to heat a 400 Litre electric hot water system?

It typically takes between 1 hour and 90 minutes to heat a 400 Litre electric hot water system, depending on the specific type of technology installed. Gas tank systems typically take between 30 minutes and an hour to heat. Electric continuous flow systems heat instantly.

How energy-efficient is the Rheem 491400 400L Electric Water Heater?

The Rheem 491400 400L Electric Water Heater is designed for energy efficiency, offering potential cost savings by connecting to lower cost tariffs and a photovoltaic (PV) system for potential cost savings. It also operates efficiently during off-peak hours to save on energy bills.

Installation Service (Optional):
For your convenience, we offer an optional installation service through our network of trusted and professional contractors.

How It Works:

  1. Select Installation Service: Indicate your interest in installation service during the checkout process.
  2. Payment for Installation: Pay for you installation with you system purchase.
  3. Contractor Assignment: We will assign a certified contractor from our network to handle your installation.
  4. Schedule Your Installation: The assigned contractor will contact you to schedule the installation at your convenience.
  5. Direct Support: For any questions or support related to the installation process, please direct your inquiries to the contractor first and if you are having issues with the contractor we are here to help.

Please Note: Our role is to supply the product and facilitate the connection with a certified contractor for installation services.

We are committed to ensuring your satisfaction both with our products and the installation service facilitated through our contractor network. For any product-related inquiries or assistance, please contact us.

Experience the "Installed Today" Difference with Our Verified Installers

When you choose "Installed Today" for your installation needs, you're not just getting a product; you're gaining access to a network of rigorously verified installers dedicated to providing you with an exceptional service experience. Here's what you can expect when you opt for an installation by an "Installed Today" verified installer:

Professional and Efficient Service

  • Prompt Communication: Our verified installers will contact you within 2 business hours of receiving your order details to confirm and begin scheduling your installation at the earliest convenience.
  • Expert Installation: All "Installed Today" installers are highly skilled and qualified, ensuring your product is installed according to the highest industry standards and specific regulations in your area.
  • Clear and Professional Communication: From the moment they receive your order until the completion of your installation, our installers maintain clear and professional communication, providing you with all necessary information regarding your installation.

Peace of Mind

  • Insurance and Liability: Every "Installed Today" verified installer maintains comprehensive insurance coverage, giving you peace of mind knowing you're protected throughout the installation process.
  • Warranty and Quality Assurance: Enjoy a warranty on your installation, guaranteeing rectification work at no additional charge in the unlikely event of any deficiencies. Our installers strive to achieve a minimum 4.5-star average rating across major review platforms, reflecting our commitment to excellence and customer satisfaction.

Customer-Centric Policies

  • Customer Dispute Resolution: In the rare event of a dispute, our installers are committed to acknowledging and initiating the resolution process within 1 business day, aiming for a swift and satisfactory resolution within 5 business days.
  • Rectification Work Timeframes: Should any rectification work be necessary, it will be acknowledged within 1 business day and completed within 2 business days, ensuring minimal inconvenience to you.

Additional Services at Transparent Rates

  • Beyond Basic Installation: Our verified installers offer a range of additional services to complement your installation. All available services and their set rates are communicated upfront, ensuring no surprises.

By choosing "Installed Today," you're not just installing a product; you're investing in a seamless, quality service that values your time and peace of mind. Trust in our verified installers to exceed your expectations with their professionalism, expertise, and commitment to excellence.

This product description outlines the benefits and assurances provided by "Installed Today" verified installers, designed to inform and reassure customers about the high level of service they can expect.


Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - 1 business day

Metropolitan Cities - Up to 3 Business Days

Non-Serviced Metropolitan Areas (confirmation via email to availability only) - Upto 10 business days


Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - Up to 2 business days

Metropolitan Cities - Up to 4 Business Days

Non-Serviced Metropolitan Areas (confirmation via email to availability only) - Upto 10 business days


Greater Brisbane and Gold Coast - up to 5 business days

Metropolitan Cities & Centres - Up to 10 Business Days



-Gold Coast

-Sunshine Coast


-Coffs Harbour













-Harvey Bay



-Tweed Heads


Brand - Rheem

Model - 491400

Volume (L) - 400

Height (mm) - 1840

Width (mm) - 690

Weight (kg) - 120

Energy Rating - 1.0/6

Made In - Australia

Made By - Rheem

Maximum Warranty - 12years

Internal Material - Steel

Noise Level (dBa) - NA

Recommend Occupants - 8+

Recommended Bathrooms - 1-3

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