Dux Prodigy 21L Always Hot Non-Condensing Continuous Flow

SunCity Hot Water supplies, installs and services the Dux Prodigy 21L Always Hot Non-Condensing Continuous Flow across the Sunshine Coast, Brisbane, Bribie Island and Gympie — backed by our quality workmanship guarantee. Call 1300 728 122.

Upgrade your home with the Dux Prodigy 21L continuous-flow water heater to enjoy endless hot water with improved efficiency. Contact SunCity Hot Water today to discover how this system can meet your needs.

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Dux Prodigy 21L Always Hot Non-Condensing Continuous Flow

The Details

Key Features

6.1 Star Equivalent Energy Efficiency Rating

The Dux Prodigy 21L features advanced technology that delivers a high energy efficiency rating of 6.1 stars. This reduces energy use and lowers carbon emissions while maintaining a reliable hot water supply.

Endless Hot Water Supply

This continuous flow water heater provides hot water on demand, eliminating the worry of running out when multiple outlets are used at the same time. It’s ideal for homes with high hot water needs or multiple bathrooms.

Space-Saving Design

With its compact and sleek form, the Dux Prodigy 21L fits neatly into areas with limited space. The unit does not require a bulky storage tank, making it suitable for flexible installation indoors or outdoors.

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Repairs · Servicing · Replacements

Is your Dux Prodigy 21L Always Hot Non-Condensing Continuous Flow not working?

No hot water, leaking or playing up? Don't rush to replace it — our licensed local technicians repair, service and replace Dux systems across the Sunshine Coast, Brisbane, Bribie Island and Gympie. We carry common parts, so many repairs are done the same day.

System Not Working? Call 1300 728 122 Get a Free Quote

Repair

Leaks, no hot water, element, thermostat and valve faults — diagnosed and fixed fast.

Service

Anode, valves and safety checks to keep your system running longer.

Replace

Past its best? We supply and install a new system, often the same day.

Product Documents

Range Brochure Spec Sheet Owner’s Manual Installation Manual

Two men in suits shake hands on a deck, a heater between them, with company banners in the background

Superior Technology from Noritz

The Dux Prodigy 21L uses advanced technology from Noritz, a trusted Japanese manufacturer renowned for innovative water heating solutions. This ensures a reliable and efficient hot water supply for Australian homes.

Electronic Ignition for Enhanced Efficiency

Featuring an electronic ignition system, this unit removes the need for a continuously burning pilot light. This reduces gas consumption, enhances energy efficiency, and improves safety.

running tap with a consistent hot water supply

Versatile for Multiple Outlets

The Dux Prodigy 21L is designed to meet the needs of medium-sized households, supplying hot water to two to three outlets at the same time—such as showers, baths, or taps—while maintaining consistent temperature and flow.

Peace of Mind

Installation, Maintenance & Warranty

Installation

The compact Dux Prodigy 21L is suitable for flexible installation, whether indoors or outdoors, depending on your home’s layout. Installation must be carried out by a licensed professional to ensure compliance with local regulations and optimal performance.

Maintenance

To maintain reliable operation and extend the unit’s lifespan, regular servicing by a qualified technician is recommended. Routine checks help identify potential issues early and preserve energy efficiency. Refer to the manufacturer’s guidelines for detailed maintenance instructions.

Warranty

The Dux Prodigy 21L comes with a 12-year warranty on the heat exchanger and a 3-year comprehensive parts and labour warranty. This coverage reflects the manufacturer’s commitment to quality, providing homeowners with confidence in the durability and performance of their water heater.

FAQs

Frequently Asked Questions

What optional accessories are available for the Dux Prodigy 21L Continuous Flow water heater?

The Dux Prodigy 21L offers optional controllers that allow you to adjust the hot water temperature. These controls provide added safety and convenience, making the system adaptable to your household’s needs.

Is the Dux Prodigy 21L suitable for smaller living spaces?

Thanks to its lightweight and compact design, the Dux Prodigy 21L is well suited for apartments or homes with limited space, while still delivering reliable hot water.

What are the key features of the heating system?

This water heater uses a Japanese-designed single copper heat exchanger, ensuring efficient heating, precise temperature control, and consistent, energy-efficient hot water supply.

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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