Hot Water Systems in Two Wells
The 5501 postcode, covering Two Wells, Avon, Calomba, Dublin, Lewiston, Long Plains, Lower Light, Middle Beach, Parham, Port Gawler, Thompson Beach, Webb Beach, Wild Horse Plains and Windsor and surrounding areas, is home to around 3,168 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 Two Wells and the 5501 area, 421 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 Two Wells's climate delivering an average of 5.0 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 5501
23rd
State Wide
654th
Australia Wide
Hot Water Installation Two Wells
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 Two Wells
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterTwo Wells
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 Two Wells
Compare heat pump hot water systems suitable for Two Wells'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 - Two Wells, 5501
Hot Water Demographics - Two Wells
Based on the Australian Bureau of Statistics 2021 Census (ABS), Two Wells has around 3,168 private dwellings, home to approximately 7,648 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Two Wells households use approximately 140 litres of hot water daily, equating to a massive 0.4 million litres of hot water used across the suburb every single day.
Other census insights reinforce Two Wells's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Two Wells community is home to 688 couple families with children and 150 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,661 homes owned with a mortgage and 791 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.
Two Wells is converting hot water demand to efficient systems faster than many peers, with 13.3% of dwellings already upgraded.
Hot water systems in Two Wells
Across Two Wells, more households are switching to energy efficient hot water systems to cut bills and move away from gas. With an average household size of around 2.8 people and more than 2,800 occupied dwellings, demand for reliable hot water is strong. Many homes are owned with a mortgage, so keeping running costs down matters just as much as the hot water system price when you are planning your next upgrade.
The Two Wells climate is ideal for efficient hot water. The area enjoys mean daily solar exposure of about 17.9 MJ/m², which works out to roughly 5 kWh/m² per day of sunshine on average. That is perfect for getting the most from a solar hot water system or a modern heat pump hot water system that runs hardest when the sun is out. For families juggling a median household income of about $1,700 a week and mortgage repayments around $1,590 a month, upgrading from older gas or electric units to an energy efficient hot water system is a logical way to lock in long term savings.
In 5501, most residents live in separate houses, with plenty of three and four bedroom homes that put a steady load on hot water every morning and evening. Hot water can easily account for a quarter of a home’s energy use, so choosing the most efficient hot water system you can afford really pays off. Brands like Rheem heat pump hot water and Sanden heat pump units are popular for low running costs, while Rheem solar hot water, Rinnai solar hot water and Chromagen solar hot water options appeal to households with good roof space and strong solar exposure. For many, the decision comes down to heat pump vs solar hot water, or solar hot water vs electric hot water backed by rooftop solar.
Average annual bill savings in Two Wells for typical upgrades can look like this:
• Old electric to heat pump hot water system: save roughly $400–$900 per year. • Gas to heat pump hot water system: save roughly $300–$700 per year. • Gas to solar hot water heating system: save roughly $250–$650 per year. • Old electric to modern electric hot water system using rooftop solar: save roughly $300–$800 per year.
Efficient systems do come with a higher upfront hot water system cost, heat pump hot water price or solar hot water price, but the long term savings and rebates often deliver a quick payback, especially in a sunny town like Two Wells.
Recent installs in Two Wells show how quickly locals are embracing efficient technology. There have already been 421 efficient hot water installations recorded in the postcode, including both heat pump hot water installation and solar hot water installation. Installations ramped up through the 2000s, with strong years around 2003, 2005 and 2009, and they have continued steadily since. While numbers in 2023–2025 are smaller, that still reflects a solid base of homeowners choosing to replace ageing gas or electric units with the best hot water system Australia can offer for their budget.
Hot Water Rebates, Tariffs & Savings
Across SA, interest in replacing old gas or electric hot water with heat pumps, solar hot water and efficient electric hot water system options is growing, and Two Wells is no exception. Homeowners here can often access Federal incentives through Small-scale Technology Certificates (STCs) for eligible solar hot water systems and heat pump hot water systems, as well as state-based heat pump hot water rebate and solar hot water rebate programs from time to time. There are also electric hot water system rebate offers in some schemes when you move away from gas. These incentives effectively reduce the upfront hot water system price or solar hot water tank replacement cost, sometimes trimming 20–40% off the installed price. When you combine rebates with rooftop solar and smart controls like timers or solar diversion, payback periods can shrink to just a few years, while annual savings of hundreds of dollars become realistic for many households.
Whether you need hot water installation for a new build, electric hot water installation to pair with solar, or hot water repair and solar hot water repair on an existing unit, it pays to treat your system as a long term investment. Many locals are now asking which is the most efficient hot water system or the best heat pump hot water system for their family size and roof layout, and how electric hot water vs gas hot water stacks up over the next decade.
If your current unit is older, noisy or running up big bills, it is a good time to check whether your Two Wells home is ready for a hot water upgrade. Talk with experienced hot water SA installers who specialise in heat pump and solar hot water installation and repair. With the town’s strong solar exposure and growing interest in sustainability, an efficient hot water system can reduce your bills, cut emissions and future proof your home. Connect with trusted local experts for personalised advice and find the right hot water rebate SA options and system for your place with us.