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Having a reliable and functional hot water system is essential for the comfort and convenience of every household in Australia. However, like any other home appliance, hot water systems are not immune to wear and tear, and eventually, they will need to be replaced. If your existing hot water system needs to be replaced and you’re wondering how much does it cost to replace hot water systems, you’re at the right place.

In this blog post, we will provide a detailed breakdown of the costs involved in replacing a hot water system in Australia and discuss the various factors that can affect the overall cost.

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    Factors Affecting Hot Water Systems Cost to Replace

    The cost of replacing a hot water system with a new hot water system can vary depending on various factors, such as the type of system, its storage tank size, and the amount of labour required for the installation. This guide will help you make an informed decision and choose the right hot water system for your needs and budget.

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    Type of Hot Water System Chosen:

    There are a few different hot water systems available in Australia, including electric hot water systems, gas-powered systems, solar water heaters, and heat pump water system. The type of hot water system you choose can significantly impact the overall cost of the replacement.

    For example, electric hot water systems tend to be more affordable to purchase and inst. In contrast, solar hot water systems can be more expensive upfront but can save you money in the long run due to lower energy costs.

    Size of the System:

    The size of the hot water system you need will also affect the cost. Larger households will typically require a larger hot water system installation to accommodate their hot water needs, which can be more expensive to purchase and install.

    Labour Costs:

    The cost of labour is another significant factor in the total cost of hot water system replacement. The amount of time and effort required to remove the old system and install the new one will affect the labour costs.

    The complexity of the installation process and any additional work required, such as modifying the plumbing or electrical system, can also increase labour costs.

    Location and Accessibility of the Installation Site:

    The location and accessibility of the installation site can also impact the total cost of replacing a hot water system. If the installation site is difficult to access or requires additional equipment, such as a crane or scaffolding, the installation cost can increase significantly.

    Any Additional Plumbing System or Electrical Work Required:

    Depending on the type of hot water system and your existing plumbing system and electrical setup, you may require additional work to install the new system correctly.

    For example, if you are switching from an electric system to a natural gas water heater, you will need to install new gas lines, which can add to the cost of the installation.

    Similarly, if your plumbing or electrical system needs modification, this can also increase the overall cost of the installation.

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    Average Hot Water System Installation Costs

    According to some estimates, the average cost of installing a new hot water system in Australia can range from $800 to $4000 or more, depending on these factors.

    For example, electric hot water systems with a 50-litre capacity and basic installation may cost around $800-$1500, while larger gas heaters with a 250-litre capacity and complex installation can cost up to $4000 or more.

    It’s important to note that these figures are estimates only, and the actual new hot water installation cost can vary significantly depending on the specific requirements of your home.

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    Call For The Most Affordable And Premium Hot Water Installations Service in Sydney

    To determine installation cost accurately, it is best to consult with professional plumbers here at Proflush. We can provide you with a tailored quote for installation costs for a new hot water system based on your needs and circumstances.

    We pride ourselves on providing high-quality workmanship at reasonable prices, making it an excellent option for those looking to replace their existing hot water system with a newer, energy-efficient one without breaking the bank.

    We can advise you on the best type of hot water system to suit your needs and budget.

    What are you waiting for? Get your free quote!


    Q1: How often should I replace my hot water system?

    Ans: The lifespan of a hot water unit varies depending on the type and model. Typically, a hot water heater can last between 10 to 15 years. However, if you notice that your water heater is not functioning correctly, has leaks, or is consuming more energy than usual, it may be time to consider a replacement.

    Q2: Are solar hot water systems the best?

    Ans: There is no one-size-fits-all answer to this question, as the “best” hot water system for your home depends on several factors, such as your household’s hot water usage, your location, your budget, and your energy efficiency goals.

    Electric systems are relatively inexpensive and easy to maintain, making them a popular choice for many homeowners.

    Gas hot water systems are more expensive to purchase and install than electric boosted systems, but they are more energy-efficient with low running costs.

    A Solar hot water system uses solar power to heat water, making a solar hot water system a sustainable and cost-effective option for households. Heat water pump water heaters extract heat from the air to sustainably heat water.

    Q3: How much saving is there on energy costs with the new electric hot water systems?

    Ans: The energy savings from a new hot water system depend on various factors, such as the type of system and your usage pattern.

    Generally, highly energy-efficient hot water systems, such as solar water heaters and heat pump water heater systems, can save you money on your energy bills compared to traditional electric power or gas hot water systems.

    It’s best to consult with a professional to determine the potential energy savings for your specific circumstances.

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