Hot Water Systems in Patterson
The 3204 postcode, covering Patterson, Bentleigh, Mckinnon and Ormond and surrounding areas, is home to around 13,438 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 Patterson and the 3204 area, 1,176 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 Patterson'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 3204
70th
State Wide
244th
Australia Wide
Hot Water Installation Patterson
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 Patterson
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterPatterson
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 Patterson
Compare heat pump hot water systems suitable for Patterson'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 - Patterson, 3204
Hot Water Demographics - Patterson
Based on the Australian Bureau of Statistics 2021 Census (ABS), Patterson has around 13,438 private dwellings, home to approximately 31,803 people. With an average household size of 2.6 people, and around 50 litres of hot water used per person each day in Australia, Patterson households use approximately 130 litres of hot water daily, equating to a massive 1.7 million litres of hot water used across the suburb every single day.
Other census insights reinforce Patterson's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Patterson community is home to 3,090 couple families with children and 566 one-parent families, meaning a large proportion of households face substantial hot water demand. With 4,239 homes owned with a mortgage and 3,938 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.
Patterson is converting hot water demand to efficient systems faster than many peers, with 8.8% of dwellings already upgraded.
Hot water systems in Patterson
Across Patterson and the wider 3204 area, more households are swapping old gas and electric units for an energy efficient hot water system that is cheaper to run and easier on the environment. With an average household size of about 2.6 people and more than 12,000 occupied dwellings, reliable hot water is a daily essential – but it does not need to cost a fortune in power bills.
Local families and downsizers alike are feeling the pinch of rising energy costs, especially with median mortgage repayments around $2,500 a month and strong demand for quality rentals. Upgrading from an ageing gas or electric hot water system to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical next step. Patterson enjoys solid sunshine, with mean daily solar exposure of about 15.2 MJ/m² – roughly 4.2 kWh/m² per day over the year – which strongly supports both heat pump hot water and any solar hot water heating system.
In a suburb where many homes are separate houses or townhouses, plus a good number of flats and apartments, hot water demand is steady but varies by dwelling size. A three to four bedroom family home will typically lean towards a larger tank or more powerful heat pump, while smaller units often suit compact electric hot water installation or a streamlined heat pump hot water installation. For many households, hot water energy use can be one of the biggest single loads on the bill, so choosing the most efficient hot water system you can afford makes a real difference.
Popular brands around Patterson include Rheem heat pump hot water and Rheem solar hot water for all-round reliability, Sanden heat pump units for ultra-efficient performance, and Rinnai solar hot water or Chromagen solar hot water for proven solar hot water installation options. These sit alongside other contenders for best hot water system Australia and best heat pump hot water system, depending on your budget and priorities.
Average annual savings from an upgrade in Patterson often look like:
• Old electric to heat pump hot water system: $400–$900 per year • Gas to heat pump hot water system: $300–$700 per year • Gas to solar hot water system: $250–$650 per year • Old electric to modern electric hot water with rooftop solar: $250–$600 per year
These ranges will vary with usage, tariffs and how much solar you have, but they give a feel for the potential.
Recent data shows Patterson is steadily embracing efficient hot water. There have been 1,176 efficient hot water system installations – mainly heat pump and solar hot water – recorded in the postcode. Installations really picked up from around 2007, peaking through 2008–2015 with multiple years over 90 installs, and continuing consistently through to 2024 and into 2025. This long-term trend reflects growing local interest in electrification, lower running costs and moving towards the most energy efficient hot water system possible.
When it comes to hot water rebate vic options, Patterson homeowners can typically access a mix of Federal and Victorian incentives. Small-scale Technology Certificates (STCs) help cut the upfront solar hot water price / cost and heat pump hot water price / cost, effectively acting as a point-of-sale discount. On top of that, state-based solar hot water rebate and heat pump hot water rebate programs, plus an electric hot water system rebate in some cases, can trim the overall hot water system price / cost by a substantial percentage.
For many Patterson homes, switching from gas to an energy efficient hot water system can save hundreds of dollars a year, especially when paired with rooftop solar and smart timers or solar-diversion controls. Comparing heat pump vs solar hot water, or solar hot water vs electric hot water, is about balancing upfront solar hot water price / cost, available roof space, and how you use hot water. If you already have solar, a quality electric or heat pump system on a timer can be the most efficient hot water system in practice. If your roof is ideal and you want long-term bill stability, a solar hot water heating system with a good solar hot water rebate can be very attractive.
Ongoing hot water repair and maintenance also matter. Older systems may need frequent hot water repair callouts or even a solar hot water tank replacement, which can tip the scales towards a new heat pump hot water installation or solar hot water repair combined with an upgrade. Many Patterson households are also weighing electric hot water vs gas hot water as they plan an all-electric home and look to future-proof against gas price rises.
If you are in Patterson and your current system is ageing, noisy, or costing too much to run, now is a smart time to look at a hot water upgrade. Whether you are considering a heat pump hot water system, a solar hot water system, or a modern electric hot water system with solar, experienced hot water installers can help you compare options, rebates and tariffs. With strong solar resources, solid household incomes and growing interest in sustainability, Patterson is well placed to benefit from efficient hot water systems that cut bills, reduce emissions and add value to your home. Talk with trusted local experts for personalised advice on hot water vic rebates, system sizing and the right solution for your property.