Hot Water Systems in Mullaquana
The 5608 postcode, covering Mullaquana, Whyalla Norrie, Whyalla Norrie East, Whyalla Norrie North and Whyalla Stuart and surrounding areas, is home to around 6,595 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 Mullaquana and the 5608 area, 662 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 Mullaquana'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 5608
13th
State Wide
459th
Australia Wide
Hot Water Installation Mullaquana
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 Mullaquana
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterMullaquana
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 Mullaquana
Compare heat pump hot water systems suitable for Mullaquana'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 - Mullaquana, 5608
Hot Water Demographics - Mullaquana
Based on the Australian Bureau of Statistics 2021 Census (ABS), Mullaquana has around 6,595 private dwellings, home to approximately 11,913 people. With an average household size of 2.1 people, and around 50 litres of hot water used per person each day in Australia, Mullaquana households use approximately 105 litres of hot water daily, equating to a massive 0.7 million litres of hot water used across the suburb every single day.
Other census insights reinforce Mullaquana's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Mullaquana community is home to 710 couple families with children and 534 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,562 homes owned with a mortgage and 1,331 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.
Mullaquana is converting hot water demand to efficient systems faster than many peers, with 10.0% of dwellings already upgraded.
Hot water systems in Mullaquana
Across Mullaquana and the wider 5608 area, more households are rethinking their hot water system and moving to energy‑efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With average household sizes around 2.1 people and more than 5,600 occupied dwellings in the postcode, hot water is a big chunk of local energy use. Many homes are still on older gas or resistive electric units, so upgrading to an energy efficient hot water system is a logical next step for cutting bills and future‑proofing your place.
Mullaquana is well suited to efficient hot water. The local solar exposure at Norrie averages about 18.9 MJ/m² per day – roughly 5.25 kWh/m² of sunlight daily – which is excellent for a solar hot water heating system and helps a heat pump hot water system run more efficiently too. With a median household income of about $974 a week and many homes either owned with a mortgage or renting, controlling running costs really matters. Shifting from older gas or electric hot water vs gas hot water setups to modern systems can deliver substantial Annual Hot Water Energy Savings for typical families and retirees alike.
In the 5608 postcode, most dwellings are separate houses with three bedrooms, so hot water demand is steady rather than extreme, but still significant over the year. Many households are now pairing rooftop solar with an efficient hot water upgrade so that their hot water system price / cost to run drops dramatically. Local installers are seeing strong interest in heat pump vs solar hot water comparisons, with people weighing up which will be the most efficient hot water system for their roof space, budget and tariff. Brands like Rheem heat pump hot water, Sanden heat pump and solar options from Rheem solar hot water and Rinnai solar hot water are common choices, along with systems from Chromagen solar hot water and other leading manufacturers.
Typical annual bill savings in Mullaquana for a well‑matched system can look like:
• Replacing an old electric hot water system with a quality heat pump hot water system: around $350–$700 per year. • Switching from gas hot water to a heat pump hot water system: roughly $250–$600 per year. • Going from gas to a solar hot water system: about $300–$650 per year. • Upgrading an old electric unit to a modern electric hot water system and running it mostly on rooftop solar: around $250–$550 per year.
Since 2001, there have been 662 efficient hot water installations (heat pump and solar hot water installation jobs) recorded in the 5608 postcode, with a clear spike in activity around 2015 and 2016 when more than 200 systems went in over just two years. While numbers have eased back in recent years, steady installations through to 2025 show ongoing local interest in electrification, lower running costs and cleaner hot water SA‑wide. Each new heat pump hot water installation or solar hot water tank replacement helps bring down community energy use and emissions.
Hot Water Rebates, Tariffs & Savings
Homeowners in Mullaquana are increasingly looking to replace old gas or electric units with efficient options, whether that is a heat pump hot water system, a modern electric hot water installation timed to match rooftop solar, or a roof‑mounted solar hot water system. A key driver is the range of incentives on offer. At a Federal level, eligible systems attract Small‑scale Technology Certificates (STCs), which act like a built‑in discount off the upfront solar hot water price / cost or heat pump hot water price / cost. On top of that, South Australian programs often include a solar hot water rebate or heat pump hot water rebate, and in some cases an electric hot water system rebate for approved high‑efficiency units. For many Mullaquana households, these hot water rebate SA options can cut the installed hot water system price / cost by a substantial percentage, and shorten payback to just a few years.
Once installed, using timers or smart controls to run an electric hot water system when solar is generating, or using solar‑diversion to top up a solar hot water heating system, can squeeze even more value from your setup. For many locals, moving from solar hot water vs electric hot water on flat tariffs to smarter time‑of‑use plans can further reduce bills.
Whether you are comparing heat pump vs solar hot water, looking at solar hot water vs electric hot water, or just wondering which is the best hot water system Australia‑wide for your style of home, it pays to get local advice. If your existing unit is leaking, unreliable or more than 10–12 years old, now is a good time to consider hot water repair versus full replacement. An experienced installer can walk you through options like Rheem solar hot water, Rinnai solar hot water, Sanden heat pump or other best heat pump hot water system choices, and help you decide if hot water repair, solar hot water repair, or a complete upgrade is the smarter move.
If you are in Mullaquana and thinking about a hot water upgrade, it is worth checking whether your home is ready to move from gas or an old electric unit to a modern heat pump or solar hot water system. With strong local solar, growing interest in sustainability and solid rebate support, efficient hot water systems can help cut your bills, reduce emissions and future‑proof your home. For tailored advice on the right energy efficient hot water system, hot water installation or hot water repair, connect with trusted local hot water SA specialists and get personalised guidance on the best path forward.