We prioritise quality into the design and manufacture of our hot water systems to make one of the best water heaters possible. The process begins with robust designs from our local research and development team. We specify superior ‘Plus plus’ cylinder designs in the majority of our storage products, combined with high strength steel and commercial grade enamel for longer product life. We leak test tanks from each days production for even greater quality assurance. It's why we say our products are Built stronger to last longer™.

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What was the main reason for you selecting a Dux hot water system? —Please choose an option—AdvertisingPriceQualityAdvice from installerAustralian madeSuperior productWarranty termsService supportProduct availabilityRecommended by friendRecommended by storeOther

An iconic Australian brand since 1915, the Dux range has seen continuous research and development, resulting in many breakthroughs in water heater efficiency and longevity.

NaviLink & NaviLink Lite make it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink system attaches easily to any new or existing* Navien tankless water heater, combi‐boiler and boiler. NaviLink Lite is great for single residential units and magnetically mounts to the side of the unit or can easily be mounted on the wall. Also, NaviLink Lite does not require external power.

With Navien's Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow on demand ratio will continue until all 32 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.

How did you purchase your Dux hot water system? —Please choose an option—Energy ProviderPlumbing storeHot water or solar specialistPlumber suppliedHardware storeBuilder suppliedSupplied under warrantyOther

Navien’s new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.

All Dux water heaters are backed by our Marathon Warranty. It's designed to provide peace of mind over the warranted term of the water heater.

Backed by Noritz, an international hot water powerhouse and a leading Japanese manufacturer of residential and commercial water heaters.

Navien’s patented ComfortFlow® system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters.

* The “cold-water sandwich effect” is the undesired introduction of cold water into the hot water supply line on occasions of frequent on/off operations. (Measure Guideline : Transitioning to a Tankless Water heater, DOE, Sept.2012).

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Dux large electric, gas storage, solar and heat pump water heaters are manufactured in a state-of-the-art facility in the Southern Highlands, using a Quality Endorsed Company production system.