Hot Water Systems in Watermans Bay
The 6020 postcode, covering Watermans Bay, Carine, Marmion, North Beach and Sorrento and surrounding areas, is home to around 8,695 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 Watermans Bay and the 6020 area, 1,493 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 Watermans Bay's climate delivering an average of 5.4 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 6020
36th
State Wide
168th
Australia Wide
Hot Water Installation Watermans Bay
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 Watermans Bay
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterWatermans Bay
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 Watermans Bay
Compare heat pump hot water systems suitable for Watermans Bay'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 - Watermans Bay, 6020
Hot Water Demographics - Watermans Bay
Based on the Australian Bureau of Statistics 2021 Census (ABS), Watermans Bay has around 8,695 private dwellings, home to approximately 21,256 people. With an average household size of 2.7 people, and around 50 litres of hot water used per person each day in Australia, Watermans Bay households use approximately 135 litres of hot water daily, equating to a massive 1.2 million litres of hot water used across the suburb every single day.
Other census insights reinforce Watermans Bay's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Watermans Bay community is home to 2,001 couple families with children and 263 one-parent families, meaning a large proportion of households face substantial hot water demand. With 3,032 homes owned with a mortgage and 3,681 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.
Watermans Bay is converting hot water demand to efficient systems faster than many peers, with 17.2% of dwellings already upgraded.
Hot water systems in Watermans Bay
Across Watermans Bay, more homeowners are rethinking their hot water system and moving to energy efficient options like a heat pump hot water system, solar hot water system or modern electric hot water system. With a high level of home ownership in the 6020 postcode (over 6700 dwellings owned outright or with a mortgage) and an average household size of 2.7 people, reliable and affordable hot water is a big part of day-to-day comfort and running costs.
The coastal climate here is ideal for efficient hot water. Nearby Sorrento records an average annual solar exposure of around 19.4 MJ/m² per day – roughly 5.4 kWh/m² per day – which is excellent for a solar hot water heating system and supports strong performance from a quality heat pump hot water system as well. For many Watermans Bay households, especially families and older couples who make up a large share of the 21,000+ residents in 6020, upgrading from an older gas or electric unit to an energy efficient hot water system is a logical next step to cut bills and future-proof the home.
In the 6020 area, most dwellings are separate houses with three or four bedrooms, so hot water demand is solid, particularly in family homes. Hot water can account for 20–30% of household energy use, so choosing the most efficient hot water system really matters. Locally, we see strong interest in heat pump vs solar hot water comparisons, as people weigh the benefits of pairing a heat pump hot water installation with rooftop solar, versus a dedicated solar hot water installation with a roof-mounted or ground-mounted solar hot water tank replacement.
Typical annual bill savings for Watermans Bay homes can look like this:
• Old electric to heat pump hot water system: save around $400–$800 per year. • Gas to heat pump hot water: save roughly $300–$600 per year. • Gas to solar hot water system: save about $250–$550 per year. • Old electric to modern electric hot water installation with solar: save around $300–$700 per year.
Brands like Rheem, Rinnai, Sanden and Thermann are popular locally, with options ranging from rheem solar hot water and rinnai solar hot water through to premium sanden heat pump units and rheem heat pump hot water systems. Many households ask about the best hot water system Australia can offer, or the best heat pump hot water system for their family size and roof space. Others are comparing solar hot water vs electric hot water, or electric hot water vs gas hot water as they plan an all-electric home.
In the 6020 postcode, there have already been 1,493 efficient hot water installations, combining heat pump and solar hot water systems. Install numbers grew strongly through the 2000s, peaking around 2008–2010, and have stayed steady since, with ongoing installations every year through to 2025. This steady trend shows Watermans Bay’s growing interest in electrification, lower running costs and cleaner hot water WA homeowners can rely on.
Hot Water Rebates, Tariffs & Savings
Across Watermans Bay, more people are replacing old gas or resistive electric units with efficient options like a heat pump hot water system, a newer electric hot water system or a solar hot water heating system. Australian Government Small-scale Technology Certificates (STCs) reduce the solar hot water price / cost and heat pump hot water price / cost, while WA hot water rebate programs and occasional electric hot water system rebate offers can further cut the upfront hot water system price / cost. For many homes, these discounts can effectively reduce system cost by 20–40%, turning a long-term upgrade into a very achievable project. When you combine a heat pump hot water installation or solar hot water installation with rooftop solar and smart timers or solar diversion, it is common to save hundreds of dollars per year and shorten the payback period to just a few years. That is why interest in hot water rebate wa options, solar hot water rebate schemes and heat pump hot water rebate incentives continues to grow.
If your existing unit is ageing, noisy or struggling to keep up, now is a good time to check whether your Watermans Bay home is ready for a hot water upgrade. Whether you are moving from gas to an electric hot water system, or weighing heat pump vs solar hot water, working with experienced local hot water installers like us means you get practical advice, neat hot water installation and reliable hot water repair or solar hot water repair support. With Watermans Bay’s strong solar resource and community focus on comfort and sustainability, an energy efficient hot water system can help reduce bills, cut emissions and future-proof your home. Reach out to our trusted local experts for personalised guidance on the right hot water wa solution for your place and make the most of today’s hot water rebate wa opportunities.