Hot Water Systems in Marmion
The 6020 postcode, covering Marmion, Watermans Bay, Carine, 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 Marmion 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 Marmion'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 Marmion
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 Marmion
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterMarmion
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 Marmion
Compare heat pump hot water systems suitable for Marmion'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 - Marmion, 6020
Hot Water Demographics - Marmion
Based on the Australian Bureau of Statistics 2021 Census (ABS), Marmion 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, Marmion 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 Marmion's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Marmion 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.
Marmion is converting hot water demand to efficient systems faster than many peers, with 17.2% of dwellings already upgraded.
Hot water systems in Marmion
In Marmion, hot water is something you really notice when it goes wrong. With energy prices climbing and more locals looking to move away from gas, there’s a clear shift towards an energy efficient hot water system – whether that’s a heat pump hot water system, a solar hot water system or a modern electric hot water system that works hand‑in‑hand with rooftop solar. With an average household size of around 2.7 people and more than 8,000 dwellings across 6020, reliable, efficient hot water is a big part of day‑to‑day comfort and running costs.
Marmion’s coastal climate is ideal for efficient hot water. The Sorrento weather station records mean daily solar exposure of about 19.4 MJ/m² – roughly 5.4 kWh/m² per day – which is excellent for a solar hot water heating system and also supports strong performance from a heat pump hot water system. With many homes owned outright or with a mortgage, and solid median household incomes, upgrading an older gas or off‑peak electric hot water system is a logical next step for families who have already tackled insulation, LEDs or solar panels. Annual hot water energy savings can be substantial when you move to the most efficient hot water system that suits your roof, budget and household size.
Around Marmion and neighbouring suburbs, we’re seeing more efficient hot water installation work in larger family homes, many with three or four bedrooms and high hot water demand from teenagers, guests and home offices. Hot water use can be one of the biggest single energy loads in the home, so choosing between heat pump vs solar hot water or solar hot water vs electric hot water really matters. Brands like Rheem, Rinnai, Sanden and Thermann are common on local jobs, with Rheem solar hot water and Rinnai solar hot water popular for roof‑mounted systems, while Sanden heat pump units and Rheem heat pump hot water are go‑to options for quiet, efficient, all‑electric upgrades.
Typical annual bill savings in Marmion can look like:
• Old electric to heat pump hot water system: around $400–$800 per year • Gas storage to heat pump hot water system: around $300–$600 per year • Gas storage to solar hot water system: around $250–$550 per year • Old electric to modern electric hot water installation with good solar: around $250–$500 per year
In total, there have already been about 1,493 efficient hot water systems installed across the 6020 postcode, covering both heat pump hot water installation and solar hot water installation. Install numbers grew steadily from the early 2000s, peaking around 2008–2010 when solar hot water rebate schemes were particularly strong, and have continued at a consistent level through the 2010s and early 2020s. That long‑term trend shows how Marmion households are steadily embracing electrification, better hot water efficiency and lower running costs.
Hot Water Rebates, Tariffs & Savings (H2)
Across Marmion, more homeowners are replacing ageing gas units with a heat pump hot water system, a solar hot water system or a high‑efficiency electric hot water system that can soak up daytime solar. Federal Small‑scale Technology Certificates (STCs) and WA hot water rebate programs for efficient systems can significantly cut the upfront hot water system price / cost, especially for heat pumps and solar. Depending on the system, a heat pump hot water rebate or solar hot water rebate can effectively reduce the solar hot water price / cost or heat pump hot water price / cost by a sizeable percentage, often trimming payback periods to just a few years when combined with rooftop solar. There are also electric hot water system rebate offers in some programs, making a quality electric hot water installation more attractive if you already have plenty of PV. Smart use of timers or solar diversion controls can push you even closer to using free sunshine for most of your daily hot water needs.
When you factor in the hot water system price / cost over its lifetime, plus the potential hot water rebate wa and ongoing bill savings, an energy efficient hot water system becomes a practical way to cut emissions and future‑proof your home. For many Marmion households, the best hot water system Australia can offer is the one that balances upfront cost, roof space, noise, and running costs – often a quality heat pump or solar hot water heating system.
If your current unit is older, noisy or struggling to keep up, it may be the perfect time to compare electric hot water vs gas hot water, or look at heat pump vs solar hot water options. Whether you need hot water repair, solar hot water repair, a full solar hot water tank replacement or a brand‑new hot water installation, it pays to talk to experienced local specialists who understand hot water wa conditions. We can help you weigh up the best heat pump hot water system and solar hot water systems for Marmion, explain any hot water rebate wa incentives available, and guide you through electric hot water installation, heat pump hot water installation or solar hot water installation. Connect with trusted local experts for personalised advice on the most efficient hot water system for your home, and start enjoying lower bills, reliable hot water and a more sustainable Marmion property.