A Comprehensive Guide to Saxon Hot Water System Installation and Maintenance

    Dealing with a Saxon hot water system and unsure how to proceed with maintenance or repairs now that production has stopped? Cut through the confusion with this focused guide, which outlines the steps to keep your system running smoothly, the best ways to troubleshoot common issues, and what to consider if a replacement is in your future. Navigate the post-production landscape with confidence, knowing you have the essential information at your fingertips.

    Key Takeaways

    • Saxon hot water systems ceased production in 2011 but continue to be serviced by authorized dealers; common issues include performance declines, leaks, and component failures.

    • Regular maintenance of Saxon systems can extend their lifespan of 10-20 years, with preventive measures addressing corrosion, leaks, and part deterioration.

    • Despite Saxon hot water systems being discontinued, replacement parts are available through official websites and authorized dealers, and qualified plumbers are essential for repairs.

    Understanding Saxon Hot Water Systems

    Famed for their quality and competitive pricing, Saxon hot water systems made their mark in Australian households since their establishment in 1897. The brand specialized in the production of high-quality hot water systems, including the popular Saxon hot water heater. They were particularly known for their Copperflow coil type heat exchange hot water systems, which stood out for their heat exchange technology.

    Despite the cessation of production in 2011 due to liquidation, Saxon hot water systems continue to hold relevance in numerous households. Authorized dealers and service providers persist in offering same-day service for these systems.

    The Rise and Fall of Saxon Hot Water Systems

    Saxon hot water systems gained popularity due to their comprehensive range of systems that could cater to various household needs. The availability of gas or high demand electricity options for hot water service also added to their appeal. However, the tides turned for Saxon due to external factors such as the heightened adoption of photovoltaic electric solar panels and the reduced value of Renewable Energy Certificates. These factors impacted the economic viability of Saxon hot water systems, leading to their decline.

    In June 2011, the production of Saxon hot water systems came to a halt, signifying the close of a significant chapter.

    Types of Saxon Hot Water Systems

    Saxon’s product line was diverse, offering gas, solar, and electric hot water heaters. Their electric hot water systems were particularly notable for their simple installation, reliable operation, and a wide range of models designed to suit various household needs. For instance, the Copperflow Premier, a 180L electric hot water system, was a popular choice among the Saxon models.

    Even with the end of their production, servicing for electric, solar, and heat pump models of Saxon hot water systems remains available today.

    Common Issues with Saxon Hot Water Systems

    Even the most reliable of systems have their share of issues, and Saxon hot water systems are no exception. Owners of these systems often find themselves grappling with:

    • Subpar performance

    • Elevated operational expenses

    • The occurrence of blue/green copper stains in baths and sinks

    • The need for frequent replenishment of water.

    Saxon heat pumps, including the Copperflow heat pump systems, have been reported to experience the following issues:

    • Complete breakdowns

    • Tepid water production

    • Failure to switch off

    • Dispensing cold water

    • Gas leaks within the tank

    These issues have been reported by users.

    Leaking Tanks and Overflow Pipes

    Leakage in Saxon hot water systems is a frequent issue that can be attributed to a malfunctioning HPNR valve or a pin hole in the internal copper coil. To diagnose a faulty valve, one can listen for the sound of water running through the valve, which is distinguishable from the hissing sound of water running through the tank. If hot water is leaking, caution should be exercised to avoid touching it. If there is a leak from the overflow, it is advisable to inspect for valve or heat exchange failure.

    If the tank is leaking, the appropriate course of action is to replace the tank. In such cases, it is important to consider whether to replace just the valve or allocate the funds towards a new hot water heater, as a used hot water valve cannot be refunded.

    Heat Exchange Failures

    Heat exchange failures in Saxon hot water systems are another common issue. A surefire way to diagnose a failed heat exchange is to listen for a hissing noise by putting your ear up to the tank. A hissing noise is an indication of a failed heat exchange. Typical indications of a failing heat exchange include:

    • Leaking from the valve

    • Malfunctioning heat exchanger

    • Inconsistent water temperatures

    • Water leaks from the coil into the storage tank, eventually running out the overflow pipe.

    The failure is typically attributed to a hole in the heat exchange coil, leading to water leakage. Despite a failed heat exchange, it is feasible to temporarily utilize the hot water tank by intermittently turning the tap or valve on and off before a plumber arrives.

    Maintaining Your Saxon Hot Water System

    Regular upkeep is vital to prolong the lifespan and maintain the efficiency of your Saxon hot water system. Regular maintenance not only prevents breakdowns but also reduces energy costs and ensures a consistent supply of hot water. It is advisable to perform maintenance tasks, such as topping up the water level, every 3 to 4 months, or quarterly, to ensure the optimal functioning of your Saxon hot water system.

    Comprehensive servicing, including maintenance, repair, and replacement, is available for Saxon hot water systems to ensure peak operation.

    Regular Maintenance Tasks

    Frequent servicing is crucial to uphold the efficient performance of a Saxon hot water system, which generally has a lifespan of 10-20 years. Regular maintenance can avert issues such as corrosion or splitting of the inner coil, which can lead to internal flooding. It can also help in identifying and addressing leaks in the tank or HPNR valve, thus preventing overflow.

    Saxon hot water systems do not demand specific tools for maintenance. Nevertheless, some replacement parts may be essential for saxon hot water repairs.

    When to Replace Parts

    The various components in a Saxon hot water system typically have a lifespan ranging from 10 to 20 years. However, certain parts such as the anode may require more frequent inspection and replacement as needed. The inner coil is frequently replaced in a Saxon hot water system due to corrosion or deterioration over time. Moreover, the anode should be examined every few years and usually replaced every five years.

    The need for replacements often arises from a failed inner coil or a failed HPNR valve, which may ultimately require the replacement of the tank itself.

    Saxon Hot Water System Repairs and Servicing

    To effectively repair Saxon Hot Water Systems, a plumber should have completed a recognized certificate III or IV in plumbing to ensure they have the necessary qualifications. The professionals at 23 Hour Plumbing possess the knowledge and skills to identify and resolve a range of issues with Saxon hot water systems, ultimately restoring the system’s ability to deliver hot showers efficiently.

    Finding Spare Parts for Saxon Hot Water Systems

    Before acquiring spare parts for Saxon hot water systems, it’s important to carefully consider the specific replacement parts needed and verify their availability from reputable sources. Indeed, there are stores that continue to sell Saxon hot water system spare parts. 

    Esteemed online platforms that focus on spare parts for discontinued brands or offer a marketplace for multiple suppliers, such as eBay or specialized plumbing and heating supply websites, are also a reliable source for purchasing spare parts for Saxon hot water systems.

    Hiring a Qualified Plumber

    A plumber tasked with repairing a Saxon Hot Water System should possess expertise in both plumbing and electrical work. In addition, they should be licensed and have experience in installing hot water systems, as mandated by new rules and regulations. You can locate a proficient plumber with expertise in Saxon Hot Water Systems by reaching out to JR Gas & Water.

    Hiring a proficient plumber is beneficial for Saxon Hot Water Systems because:

    • They have essential training and certification in plumbing and electrical work

    • They can provide effective repairs and prevent further damage

    • Engaging an unqualified individual may lead to inadequate repairs, potentially resulting in additional damage and jeopardizing safety.

    Replacing Your Saxon Hot Water System

    If your Saxon hot water system is beyond repair or has reached the end of its lifespan, you might be considering the installation of a new hot water tank. Our team of experts is fully equipped to offer personalized guidance to meet your specific requirements. If you are looking for a comparable substitute for a Saxon 140 litre hot water system, consider replacing it with a 125 litre electric hot water system. The 125 litre electric system can provide similar performance and meet your hot water needs..

    In the process of replacing Saxon hot water systems, adherence to new plumbing regulations is crucial. This includes the mandate for the installation of a drain line to the nearest waste.

    The reviewer intends to uninstall and replace their Saxon Copperflow heat pump system with a traditional off-peak electric system.

    Choosing a New Hot Water System

    Determining the appropriate size for a hot water system in a residential property primarily involves considering the household size and water usage. Here are some general guidelines:

    • A small apartment or house is suitable for a system with less than 200L capacity.

    • An average-sized house can be adequately served by a 200-300L system.

    • Larger houses may require systems with 300L or more.

    Heat pump water heaters, a heat exchange type system, are highly energy-efficient, consuming only around 30% of the energy used by conventional electric hot water systems. Gas hot water systems with high efficiency are also economical.

    Some widely recognized and top-performing brands in the hot water system industry include:

    • Rheem

    • Rinnai

    • Dux

    • Bosch

    • Aquamax

    If you are considering replacing your Saxon model, there are several options to consider, including electric hot water systems or heat exchanger hot water systems.

    Installation Process

    Correct installation of a hot water system is paramount to circumvent potential issues. These can range from:

    • water leaks

    • malfunctions causing loss of hot water supply

    • slow heating

    • costly repairs

    • home damage

    • tank overheating and cracking

    • issues with tempering valves affecting hot water supply and pressure.

    Essential tools required for the installation of a hot water system include a pipe wrench and various other wrenches.

    Real-life Experiences with Saxon Hot Water Systems

    To provide a more comprehensive perspective, we will explore some actual user experiences with Saxon hot water systems. Several users have reported that the Saxon Electric Copperflow Series hot water system is cost-effective, dependable, and trouble-free. However, not all experiences have been positive. Some owners have expressed dissatisfaction with the Saxon brands, particularly the Copperflow Premier model, finding that they needed to replace components such as the element and coil within a relatively short timeframe of less than 4 years, resulting in a diminished view of these systems.

    The general sentiment is mixed, with some customers expressing strong dissatisfaction, citing the high cost in comparison to the value and indicating that the discontinuation of Saxon is not surprising given these experiences.


    To sum up, Saxon hot water systems, while no longer in production, continue to be a common feature in Australian households due to their quality and competitive pricing. However, like any other appliance, they come with their own set of challenges, from common issues like leaking tanks and heat exchange failures to the need for regular maintenance and eventual replacement. It is important to have a comprehensive understanding of your system, its common issues, and maintenance needs to ensure its longevity and efficiency. This guide provides a comprehensive overview of Saxon hot water systems, their installation, maintenance, common issues, and replacement.

    Whether you’re a current owner of a Saxon hot water system or considering purchasing a used one, we hope this guide has provided you with valuable insights and practical advice. Remember, the key to a smoothly functioning hot water system lies in regular maintenance, timely repairs, and eventually, a well-planned replacement. So, here’s to many more warm showers and hassle-free mornings!

    Frequently Asked Questions

    How does a Saxon hot water system work?

    In a Saxon hot water system, water is stored in a copper tank with a heat exchange coil that is heated by an electric element, and as cold water passes through the coil, it is heated by the transfer of heat from the hot water in the tank.

    What is the life expectancy of a hot water system?

    The life expectancy of a hot water system is typically 8-20 years, but regular maintenance can extend its useful life indefinitely.

    Why is hot water system not working?

    Your hot water system may not be working due to simple issues like a tripped circuit breaker or a malfunctioning thermostat, or more complex problems like a broken heating element in the water storage tank or a faulty water heater.

    What types of hot water systems did Saxon produce?

    Saxon produced gas, solar, and electric hot water heaters, offering a range of options for different preferences and needs.

    What are the common issues with Saxon hot water systems?

    The common issues with Saxon hot water systems include leaking tanks, overflow pipes, heat exchange failures, and performance-related problems. It's important to address these issues promptly to ensure the system functions efficiently.

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