Rheem Ultra 28L Internal Gas Continuous Flow Water Heater

Name: Rheem Ultra 28L Internal Gas Continuous Flow Water Heater
Brand: Rheem

SunCity Hot Water supplies, installs and services the Rheem Ultra 28L Internal Gas Continuous Flow Water Heater across the Sunshine Coast, Brisbane, Bribie Island and Gympie — backed by our quality workmanship guarantee. Call 1300 728 122.

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.

Call 1300 728 122

The Details

Key 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.

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Product Documents

Install Instruction Rheem Plumbers HB RHM Ultra 28L Brochure

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.

Peace of Mind

Installation, Maintenance & Warranty

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.

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.

FAQs

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.

Is gas hot water cheaper than electric?

Gas hot water is often cheaper to run than peak-rate electricity, particularly for larger households. Continuous-flow gas only heats water on demand, avoiding the standby heat loss of a storage tank. Actual running costs depend on your gas rates and usage.

How does gas hot water work?

A gas hot water system burns natural gas or LPG to heat your water — either instantly as it flows through a continuous-flow (tankless) unit, or stored in a heated tank ready for use.

How long do gas hot water systems last?

Gas hot water systems typically last around 10–12 years with regular servicing. Continuous-flow units often last longer than storage models.

What size gas hot water system do I need?

Continuous-flow gas systems are sized by flow rate (litres per minute) based on how many hot water outlets run at once; gas storage systems are sized by tank capacity. SunCity will match the right unit to your household's peak demand.

How much does it cost to install a hot water system?

SunCity Hot Water quotes all-inclusive pricing — supply, installation by licensed plumbers and electricians, tempering and pressure-relief valves, removal of the old unit, QBCC fees and GST — with no hidden extras. Call 1300 728 122 for a fast quote.

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