Dux Prodigy 135L 5 Star Gas Storage
SunCity Hot Water supplies, installs and services the Dux Prodigy 135L 5 Star Gas Storage 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 135L 5 Star Gas Storage water heater, designed for superior efficiency and performance. Enjoy faster recovery times and a reliable hot water supply without requiring additional space. Contact SunCity Hot Water today to find out more about this advanced hot water system.

Key Features
Enhanced Flue Damper Design
The patented flue damper reduces heat loss, keeping more warmth within the tank. This maximises energy efficiency, lowers running costs, and ensures hot water is available when you need it.
Advanced Burner Technology
A powerful, efficient burner provides rapid recovery rates, delivering a continuous supply of hot water for your household. This technology ensures energy-efficient operation while meeting your hot water needs effectively.
Seamless Replacement Footprint
With a footprint identical to older 3-star gas storage units, the Dux Prodigy 135L 5-Star can easily replace existing systems. No modifications are required, making installation quick and hassle-free.
Is your Dux Prodigy 135L 5 Star Gas Storage 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.
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

Independent Hot Water Supply
The unit operates without the need for a power point, ensuring a reliable supply of hot water even during power outages. This delivers uninterrupted comfort for your household.

Efficient Gas Operation
Designed to work with standard gas lines, the Prodigy 135L offers straightforward installation and energy-efficient performance suitable for typical Australian homes.
Ideal for Small to Medium Households
With a 135-litre capacity, this model effectively serves 2–4 people, making it perfect for small to medium households without compromising on hot water performance.
Installation, Maintenance & Warranty
Installation
The compact footprint of the Dux Prodigy 135L aligns with existing 3-star gas storage units, allowing for easy replacement without additional modifications. Designed for use with a standard-sized gas line, installation integrates smoothly into your current setup.
Maintenance

To maintain optimal performance and longevity, regular servicing is recommended. This includes inspection of the burner, flue damper, and tank insulation by a qualified technician, in accordance with manufacturer guidelines.
Warranty

The Dux Prodigy 135L is protected by the Marathon® Warranty, offering 7 years on the tank and 1 year on parts and labour. This provides peace of mind, reflecting the product’s quality, reliability, and long-term durability.
Frequently Asked Questions
What is the tank size of the Dux Prodigy 135L 5 Star Gas Storage?
The Dux Prodigy 135L has a tank capacity of 135 litres, providing ample hot water for small to medium-sized households.
What energy sources are compatible with the Dux Prodigy 135L?
This water heater operates on both natural gas and propane, giving households flexibility depending on their available gas supply.
How does the Prodigy 135L compare to other gas storage water heaters?
The Dux Prodigy 135L is engineered for high efficiency, with advanced burner technology and improved heat retention. It delivers superior performance and energy savings compared to standard gas storage models.
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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