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Dux Manuals & User Guides

Dux is an iconic Australian brand established in 1915, specializing in high-quality hot water systems including electric, gas, solar, and heat pump water heaters.

Tip: include the full model number printed on your Dux label for the best match.

About Dux manuals on Manuals.plus

Dux is an iconic Australian brand established in 1915, specializing in high-quality hot water systems including electric, gas, solar, and heat pump water heaters.

Since 1915, Dux has been a leading force in the Australian hot water industry, renowned for continuous research and development that has led to significant breakthroughs in the efficiency, reliability, and longevity of hot water systems. Committed to producing high-quality products for Australian and New Zealand homes, the Dux range includes electric storage, gas storage, continuous flow, solar, and heat pump water heaters.

Today, Dux is proudly owned by Noritz, a leading international manufacturer of residential and commercial water heaters. Dealing with local water conditions and energy requirements, Dux continues to innovate from its state-of-the-art facility in regional NSW. The brand emphasizes sustainability through its Ecosmart range, designed to lower household energy use and greenhouse gas emissions.

Dux manuals

Latest manuals from manuals+ curated for this brand.

dux 270DHB36 Heat Pump Water Heater Owner’s Manual

January 4, 2026
dux 270DHB36 Heat Pump Water Heater Owner's Manual   IMPORTANT INFORMATION Failure to follow these instructions may affect the Warranty Model: 270DHB36, 270DHB36P, 270DHC36 & 270DHC36P Note: A ‘H’ at…

dux H3165-D Ecosmart Solar Water Heater Owner’s Manual

January 1, 2026
dux H3165-D Ecosmart Solar Water Heater Specifications Models: 250DPM36, 315DPM36, 400DPM36 (Electric Boosted) | 250DP0, 315DP0, 400DP0 (Gas Boosted) Manufactured and sold after: 1st November 2018 PTR Valve rating: 1,000…

dux 315L Electric Hot Water Heater User Guide

September 5, 2025
dux 315L Electric Hot Water Heater AN ICONIC BRAND An iconic Australian brand since 1915, Dux   is committed to producing high quality water heaters and to the on-going development of…

DUX DUCIS Keyboard Instructions

July 10, 2024
DUX DUCIS Keyboard Product Usage Instructions Pairing the Keyboard: Ensure the keyboard is charged and turned on. Go to the Bluetooth settings on your device. Select "DUX DUCIS Keyboard" from…

dux 50C336 Storage Water Heater Owner’s Manual

May 29, 2024
dux 50C336 Storage Water Heater Product Information Commercial Electric Storage Water Heater Model: 50C336 Manufacturer Contact: 1300 365 115 (Australia) / 0800 729 389 (New Zealand) Specifications Effective for the…

Dux Water Heaters: Hot Water Solutions Product Guide

Product Guide
Explore the comprehensive range of Dux water heaters, including electric storage, gas storage, continuous flow, heat pumps, and solar options. Discover energy-efficient solutions, features, specifications, and warranty information.

Dux video guides

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Dux support FAQ

Common questions about manuals, registration, and support for this brand.

  • Who should install my Dux water heater?

    All Dux water heaters must be installed by a licensed tradesperson in accordance with local plumbing and electrical codes (such as AS/NZS 3000 and AS/NZS 5601.1). Attempting to install it yourself may void the warranty and cause safety hazards.

  • How often should I check the relief valve?

    The Pressure & Temperature Relief (PTR) Valve should be operated gently at least once every six months to remove lime deposits and verify it is not blocked. Failure to do so may result in tank failure or explosion.

  • What should I do if my Dux water heater is leaking?

    If there is continuous leakage from the PTR valve or the tank itself, turn off the water heater immediately and contact Dux After Sales and Service or a licensed plumber. Minor dripping from the relief valve during heating cycles is normal.

  • Where can I find warranty information for my Dux product?

    Warranty terms are outlined in the Owner's Manual supplied with your unit. You can also view warranty disclaimers and details on the official Dux website under the warranty section.