Hot Water Systems in Cultana
The 5700 postcode, covering Cultana, Willsden, Blanche Harbor, Commissariat Point, Davenport, Miranda, Mundallio, Port Augusta, Port Augusta North, Port Augusta West, Port Paterson, Wami Kata and Winninowie and surrounding areas, is home to around 5,362 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 Cultana and the 5700 area, 840 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 Cultana's climate delivering an average of 5.2 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 5700
6th
State Wide
358th
Australia Wide
Hot Water Installation Cultana
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 Cultana
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCultana
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 Cultana
Compare heat pump hot water systems suitable for Cultana'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 - Cultana, 5700
Hot Water Demographics - Cultana
Based on the Australian Bureau of Statistics 2021 Census (ABS), Cultana has around 5,362 private dwellings, home to approximately 9,808 people. With an average household size of 2.2 people, and around 50 litres of hot water used per person each day in Australia, Cultana households use approximately 110 litres of hot water daily, equating to a massive 0.6 million litres of hot water used across the suburb every single day.
Other census insights reinforce Cultana's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Cultana community is home to 635 couple families with children and 386 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,066 homes owned with a mortgage and 1,346 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.
Cultana is converting hot water demand to efficient systems faster than many peers, with 15.7% of dwellings already upgraded.
Hot water systems in Cultana
Across Cultana and the wider 5700 area, more households are moving away from old gas units and ageing electric cylinders towards an energy efficient hot water system. With an average household size of around 2.2 people and more than 4,300 occupied dwellings, there is steady demand for reliable hot water that does not send power bills through the roof. For many owners paying a median mortgage of about $1,083 a month, upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a simple way to lock in long term savings.
Cultana’s climate is ideal for efficient hot water. Local solar exposure averages about 18.8 MJ/m² per day, which works out to roughly 5.2 kWh/m² of sunshine daily over the year. That strong sunlight boosts the performance of both a solar hot water heating system and heat pump hot water, especially when paired with rooftop solar. With a mix of homes owned outright and mortgaged, plus a large number of rentals, there is a real opportunity for both investors and owner occupiers to cut running costs by replacing older gas hot water with the most efficient hot water system they can fit on site.
In the 5700 postcode there are thousands of detached homes and townhouses, many with two or three bedrooms and steady hot water demand. Hot water energy use can easily be a quarter of a smaller home’s electricity bill, so the choice of hot water system has a big impact. Local installers are seeing more interest in heat pump vs solar hot water comparisons, as households weigh upfront hot water system price against ongoing savings. Brands like Rheem heat pump hot water, Rheem solar hot water, Rinnai solar hot water and Sanden heat pump units are popular options, alongside other contenders for best heat pump hot water system and best hot water system Australia wide.
Average annual bill savings in Cultana will vary, but realistic ranges for a typical home are: • Old electric to quality heat pump hot water system: $350–$700 per year • Gas storage to heat pump hot water: $250–$600 per year • Gas storage to roof‑mounted solar hot water system: $200–$550 per year • Old electric to modern electric hot water installation with rooftop solar: $200–$500 per year
Across the postcode there have already been 840 efficient hot water installations, combining heat pump hot water installation and solar hot water installation projects. Installations ramped up in the early 2000s, with strong years in 2003, 2005, 2010 and 2015, when more than 100 systems went in each of those peak periods. While annual numbers have since settled back, recent systems in 2022–2025 show ongoing interest in electrification, lower running costs and replacing older gas and electric units with an energy efficient hot water system that suits Cultana conditions.
Hot Water Rebates, Tariffs & Savings
For Cultana households and businesses, the shift from gas to electric hot water vs gas hot water is being nudged along by rebates and rising energy prices. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible solar hot water systems and heat pump units, effectively working like an upfront solar hot water rebate or heat pump hot water rebate applied at the point of sale. On top of that, South Australian hot water rebate SA style programs periodically support efficient upgrades, including electric hot water system rebate offers for certain models. These incentives can trim the heat pump hot water price or solar hot water price by a substantial percentage, bringing the hot water system cost closer to a basic electric replacement.
When you combine rebates with off‑peak or solar‑friendly tariffs, the payback period can drop to just a few years. Using timers or solar diversion controls to run a heat pump during the middle of the day can turn it into a very energy efficient hot water system, especially if you already have rooftop solar. For some homes, solar hot water vs electric hot water with PV is a close call, while others prefer a dedicated solar hot water tank replacement or roof‑mounted chromagen style solar hot water repair to keep an older system running. Either way, a well sized system and smart controls are key.
If your current unit is more than 10 years old, running out of hot water or needing regular hot water repair, it is worth checking your options before it fails completely. Whether you are considering solar hot water vs electric hot water, a full solar hot water tank replacement, or a straightforward electric hot water installation, Cultana is well placed to benefit from efficient technology and generous sunshine. Talk with experienced local hot water SA specialists who understand heat pump hot water installation, solar hot water repair and design, and the latest hot water rebate SA programs. They can help you compare systems, rebates and running costs so you can reduce bills, cut emissions and future‑proof your home with a tailored hot water installation – then connect with trusted local experts for personalised advice with us.