Hot Water Systems in Onslow
The 6710 postcode, covering Onslow, Cane, Peedamulla, Talandji and Yannarie and surrounding areas, is home to around 474 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 Onslow and the 6710 area, 33 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 Onslow's climate delivering an average of 6.2 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 6710
270th
State Wide
1928th
Australia Wide
Hot Water Installation Onslow
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 Onslow
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterOnslow
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 Onslow
Compare heat pump hot water systems suitable for Onslow'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 - Onslow, 6710
Hot Water Demographics - Onslow
Based on the Australian Bureau of Statistics 2021 Census (ABS), Onslow has around 474 private dwellings, home to approximately 721 people. With an average household size of 2.4 people, and around 50 litres of hot water used per person each day in Australia, Onslow households use approximately 120 litres of hot water daily, equating to a massive 0.1 million litres of hot water used across the suburb every single day.
Other census insights reinforce Onslow's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Onslow community is home to 81 couple families with children and 17 one-parent families, meaning a large proportion of households face substantial hot water demand. With 19 homes owned with a mortgage and 47 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.
Onslow is converting hot water demand to efficient systems faster than many peers, with 7.0% of dwellings already upgraded.
Hot water systems in Onslow
In Onslow, more locals are rethinking their old gas and electric hot water system and moving to efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With a median household income around $2,443 a week and an average household size of 2.4 people, hot showers, dishwashers and laundries all add up on the power bill. Upgrading to an energy efficient hot water system is a simple way to cut running costs and future‑proof your home.
Onslow is blessed with serious sunshine. The airport records an average annual solar exposure of about 22.5 MJ/m² a day, which is roughly 6.25 kWh/m² of solar energy every single day over the year. That makes a solar hot water heating system or heat pump hot water installation a natural fit, whether you live in one of the 229 separate houses or one of the local units or cabins. Families are common here, and with 210 families and many three‑ and four‑bedroom homes, hot water demand is steady all year round. Switching from older electric or gas hot water to efficient technology can deliver substantial Annual Hot Water Energy Savings for Onslow households.
Across the 6710 postcode there have already been 33 efficient hot water installations (heat pump and solar hot water installation combined). Install numbers were strongest in the mid‑2000s, with noticeable peaks in 2002, 2005, 2006, 2009, 2010 and again in 2014. That early wave of systems is now reaching the age where hot water repair or solar hot water tank replacement starts to make sense, and many locals are using that as the trigger to upgrade to the most efficient hot water system they can afford.
For a typical Onslow home, hot water can be one of the biggest energy users, especially if you are still on an old electric storage tank. Choosing between heat pump vs solar hot water, or solar hot water vs electric hot water, depends on your roof space, budget, and how you use hot water. Well‑known brands such as Rheem, Rinnai, Sanden and Thermann all offer options suited to the Pilbara climate, from rheem solar hot water and rinnai solar hot water to rheem heat pump hot water and premium sanden heat pump systems. Many locals pair these with existing rooftop solar to create a truly energy efficient hot water system that runs mostly on free sunshine.
When you look at hot water system price or cost, it is worth thinking about lifetime savings rather than just the sticker. A quality heat pump hot water system might have a higher upfront heat pump hot water price or cost, but can use around 70% less electricity than an old electric unit. Likewise, a well‑designed solar hot water system can slash the energy needed to heat your tank, with solar hot water price or cost often offset over time by much lower bills. Even a modern electric hot water installation, when matched with solar and smart controls, can be a big step up from older units.
Here is a rough guide to typical annual bill savings for Onslow homes:
• Old electric to heat pump hot water system: save around $400–$800 per year. • Gas to heat pump hot water system: save roughly $300–$600 per year. • Gas to solar hot water heating system: save about $250–$550 per year. • Old electric to new electric hot water system with solar: save around $300–$700 per year.
For many residents, the best hot water system Australia can offer is the one that balances comfort, reliability and low running costs. The best heat pump hot water system for your home might be different to your neighbour’s, depending on whether you rent, own outright, or have a mortgage. With a high share of rented dwellings in Onslow, landlords are also starting to look at efficient hot water upgrades as a way to reduce tenant bills and make properties more attractive.
Hot Water Rebates, Tariffs & Savings
Across WA, there is growing interest in replacing old gas or electric hot water with options like a heat pump hot water system, efficient electric hot water system or solar hot water system, and Onslow is no exception. Homeowners here can usually access Federal Government incentives through Small‑scale Technology Certificates (STCs), which reduce the upfront hot water system price or cost for eligible systems. On top of that, WA and national programs periodically offer a heat pump hot water rebate, solar hot water rebate and electric hot water system rebate for certain upgrades. These hot water rebate wa options can effectively cut the installed cost by a substantial percentage, especially when combined with retailer discounts.
For many Onslow homes, an efficient hot water upgrade can trim hundreds of dollars a year off power bills, and when you combine rebates, STCs and rooftop solar, the payback period can shorten dramatically. Using timers or solar diversion controls to run your electric hot water installation or heat pump during the middle of the day makes even better use of Onslow’s sunshine and keeps more money in your pocket. For older rheem solar hot water or chromagen solar hot water systems that are starting to struggle, a well‑timed solar hot water repair or full solar hot water tank replacement can also unlock new rebates and better performance.
If you live in Onslow and your current unit is rusty, unreliable or simply expensive to run, it is a good time to check whether your place is ready for a hot water upgrade. Whether you are thinking about switching from gas to a heat pump hot water system, comparing electric hot water vs gas hot water, or weighing up heat pump vs solar hot water, working with experienced local hot water wa installers matters. With strong solar resources and a community that is increasingly focused on sustainability, efficient hot water systems can help cut emissions, reduce bills and make your home more comfortable year‑round. For personalised advice on the best hot water systems Onslow has to offer, connect with trusted local experts and explore your options today.
