Hot Water Systems in Wishart
The 3189 postcode, covering Wishart, Moorabbin East and Moorabbin and surrounding areas, is home to around 2,703 households. With many households already generating their own clean solar power, many are now looking at how they can make their entire home energy system more efficient, with hot water heating often the logical next step.
With hot water roughly accounting for a quarter of the average home's energy use, switching to an energy-efficient hot water system is one of the biggest opportunities for savings. Across Wishart and the 3189 area, 124 homeowners have already switched from older electric storage and gas hot water systems to solar hot water or air-source heat pump systems that draw on clean, renewable power while also claiming the hot water rebates to reduce their hot water heater system cost. These highly-efficient systems not only help cut energy bills but also reduce carbon emissions and improve overall energy independence.
With Wishart's climate delivering an average of 4.2 kWh/m² per day, conditions are ideal for hot water systems and hybrid heat pump systems that harness both sunlight and ambient air temperature to heat water efficiently all year round. When paired with existing rooftop solar power or solar batteries, the result is hot water that costs far less to run and is powered by clean, self-generated energy.
Hot Water Ranking
Postcode 3189
345th
State Wide
1302nd
Australia Wide
Hot Water Installation Wishart
Estimated daily energy to heat household water, comparing a resistive electric element with a high-efficiency heat pump. Demand shifts month-to-month using local climate patterns.
Energy Efficient Hot Water & Solar Power Wishart
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterWishart
Illustrates how a typical 6.6 kW rooftop solar system can offset the daytime energy demand of a COP 5 heat pump hot water unit.
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Heat Pump Hot Water Systems for Wishart
Compare heat pump hot water systems suitable for Wishart's climate. These energy-efficient systems are designed to work in local temperature conditions and can significantly reduce your hot water energy costs.
Community Hot Water Statistics - Wishart, 3189
Hot Water Demographics - Wishart
Based on the Australian Bureau of Statistics 2021 Census (ABS), Wishart has around 2,703 private dwellings, home to approximately 6,020 people. With an average household size of 2.5 people, and around 50 litres of hot water used per person each day in Australia, Wishart households use approximately 125 litres of hot water daily, equating to a massive 0.3 million litres of hot water used across the suburb every single day.
Other census insights reinforce Wishart's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Wishart community is home to 611 couple families with children and 98 one-parent families, meaning a large proportion of households face substantial hot water demand. With 927 homes owned with a mortgage and 716 owned outright, many residents also have the homeownership and growing equity that make switching to efficient hot water systems a practical way to lower expenses.
Wishart is converting hot water demand to efficient systems faster than many peers, with 4.6% of dwellings already upgraded.
Hot water systems in Wishart
Across Wishart, more households are rethinking their old gas and electric hot water system and switching to modern, energy efficient hot water solutions. With around 2,415 occupied dwellings and an average household size of 2.5 people, there is steady hot water demand from busy families and professionals alike. Many homes are owned with a mortgage or outright, which makes upgrading to a heat pump hot water system, solar hot water system or efficient electric hot water system a smart, value-adding step.
Wishart enjoys strong sunshine for most of the year, with average annual solar exposure of about 15.2 MJ/m² per day – roughly 4.2 kWh/m²/day. That level of sun is ideal for a solar hot water heating system or a high quality heat pump hot water installation that uses ambient air to heat your tank. When you replace an older gas or resistive electric unit, the annual hot water energy savings can easily reach hundreds of dollars, especially for larger three and four bedroom homes that dominate the local housing stock.
Locally, detached houses make up the bulk of the 3189 postcode, with a good mix of young families and more than 1,000 residents over 65. That means reliability matters just as much as efficiency. Many homeowners are comparing heat pump vs solar hot water to work out the most efficient hot water system for their roof space, budget and lifestyle. Brands like Rheem heat pump hot water and Sanden heat pump units are popular with those chasing the best heat pump hot water system performance, while Rheem solar hot water, Rinnai solar hot water and Chromagen solar hot water are common choices when people want a proven solar hot water installation. For others, a modern electric hot water installation paired with rooftop solar offers a simple, low-maintenance path away from gas.
In 3189 there have already been 124 efficient hot water installations recorded, combining heat pump and solar hot water systems. Uptake really picked up from around 2008–2012, with noticeable spikes in 2008, 2009 and 2012 as rebates improved, and another strong period from 2015 through 2017. More recently, steady installations in 2021 and ongoing work in 2024–2025 show growing interest in electrification, lower running costs and all-electric homes. Each solar hot water repair, hot water tank replacement and new heat pump hot water installation adds to a quieter, cleaner suburb.
For many Wishart households, hot water energy use is one of the biggest chunks of their power bill. Swapping from an old system to an energy efficient hot water system can make a real dent in costs:
• Old electric to heat pump hot water system: save around $350–$700 per year. • Gas to heat pump: save roughly $250–$600 per year. • Gas to solar hot water system: save about $200–$550 per year. • Old electric to modern electric hot water system with solar: save $250–$500 per year.
When you factor in the hot water system price, it pays to look at lifetime running costs, not just the upfront hot water system cost. A quality heat pump hot water price may seem higher at first, but with the right tariff, timers and solar-diversion, it often becomes the most efficient hot water system overall. Likewise, a well-designed solar hot water vs electric hot water comparison usually shows solar winning on long-term savings, especially when paired with a solar hot water rebate.
Hot Water Rebates, Tariffs & Savings
Wishart homeowners can tap into a mix of Australian Government and Victorian hot water rebate VIC programs. Small-scale Technology Certificates (STCs) reduce the effective heat pump hot water price or solar hot water price at the point of sale. On top of that, state heat pump hot water rebate schemes and electric hot water system rebate offers can further cut the upfront cost of going efficient. In practice, these discounts can reduce the system cost by a substantial percentage and shorten payback to just a few years, particularly when you combine a new system with existing rooftop solar. Many locals are now weighing solar hot water vs electric hot water and electric hot water vs gas hot water based on rebates, tariffs and the desire to get off gas.
With the right advice, you can choose from options like Rheem solar hot water, Rinnai solar hot water, Sanden heat pump or Chromagen solar hot water to suit your roof, budget and family size. Good design, smart tariffs and simple controls help you unlock the full benefit of an energy efficient hot water system, whether that is a heat pump, a solar hot water repair and upgrade, or an electric hot water system that runs mostly on your own solar.
If you live in Wishart and your current unit is ageing, noisy or expensive to run, now is a great time to explore a hot water upgrade. Talk with experienced local hot water VIC installers who specialise in heat pump hot water installation, solar hot water repair, solar hot water tank replacement and efficient electric hot water installation. With strong solar potential, solid household incomes and growing interest in sustainability, Wishart homes are well placed to cut bills, reduce emissions and future-proof comfort. Connect with trusted local experts for personalised advice with us and find the best hot water system Australia can offer for your home.