Rheem Ultra 28L Internal Gas Continuous Flow Water Heater : 50°C preset 866B28

The Rheem Ultra 28L Internal provides a powerful hot water solution for large Australian households. Rheem designed this 866B28 model to sit inside your home rather than on an external wall. Specifically, it delivers 28 litres of hot water per minute at a 25°C temperature rise. This massive capacity easily supplies hot water to three bathrooms at once. You will never experience a cold shower when someone else turns on a tap. This system heats water instantly only when you need it. Consequently, you save significant money by avoiding the cost of a large storage tank. Local families with high demand trust this unit for its speed and reliability.

Available Variations:
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Key Hot Water System Features

Exceptional Hot Water Delivery

With a continuous flow of 28 litres per minute at a 25°C rise, this heater efficiently supplies hot water to up to three bathrooms, ensuring uninterrupted comfort for showers, laundry, and other household activities.

Temperature Limiting for Safety

The 50°C temperature limit reduces the risk of scalding, providing safe and comfortable water for all users, particularly in homes with children or elderly residents.

Designed for Indoor Installation

Engineered for indoor use, the unit requires installation with Rheem accessory flue components to ensure proper venting, compliance with Australian standards, and optimal performance. Its compact form allows flexible placement within the home.

Advanced Safety Features

Flamesafe® Overheat Protection: Automatically shuts down the unit if overheating is detected, safeguarding your household and giving you peace of mind.

Consistent Hot Water Performance

Rheem Q Factor™ technology ensures rapid and stable hot water delivery, minimising temperature fluctuations and maintaining comfort throughout the household.

Custom Temperature Control

Optional remote temperature controllers allow convenient adjustment of water temperature for different areas such as the kitchen and bathroom, enhancing safety and user comfort.

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Hassle-Free Installation

Professional installation is recommended to ensure safe operation. The unit must be installed indoors using Rheem accessory flue components to provide correct ventilation and compliance with local safety regulations.

Maintenance

Regular servicing by a qualified technician is advised to maintain efficiency and longevity. Maintenance includes inspection of flueing, cleaning of components, and professional servicing as required.

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Comprehensive Warranty

For domestic installations, the system provides 15 years parts and 3 years labour coverage on the heat exchanger, along with 3 years parts and labour on all other components. For non-domestic installations, both the heat exchanger and all other components are covered by a 1-year parts and labour warranty, ensuring reliable protection for residential and commercial use.

Hot Water Service and Support

Support & Advice

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Frequently Asked Questions

Can the Rheem Ultra 28L be installed indoors?

Yes. This model is designed for indoor installation and must be vented using approved Rheem accessory flue components to ensure safety and correct operation.

Is there a higher temperature variant available?

Yes. A 60°C temperature-limited model is available for households requiring hotter water.

What type of gas does the Rheem Ultra 28L use?

This unit operates on natural gas, providing an efficient and reliable energy source for domestic hot water needs.

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Ready to Upgrade Your Hot Water System?

Choose the Rheem Ultra 28L Internal Gas Continuous Flow Water Heater for a reliable and efficient hot water supply. Contact SunCity Hot Water to find out more and arrange your installation today.