Hot Water Systems in Marrawah
The 7330 postcode, covering Marrawah, Hunter Island, Robbins Island, Alcomie, Arthur River, Brittons Swamp, Broadmeadows, Christmas Hills, Couta Rocks, Edith Creek, Forest, Irishtown, Lileah, Mella, Mengha, Montagu, Nabageena, Nelson Bay, Redpa, Roger River, Scopus, Scotchtown, Smithton, South Forest, Temma, Three Hummock Island, Togari, Trowutta, West Montagu and Woolnorth and surrounding areas, is home to around 2,919 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 Marrawah and the 7330 area, 34 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 Marrawah's climate delivering an average of 4.0 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 7330
59th
State Wide
1909th
Australia Wide
Hot Water Installation Marrawah
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 Marrawah
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterMarrawah
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 Marrawah
Compare heat pump hot water systems suitable for Marrawah'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 - Marrawah, 7330
Hot Water Demographics - Marrawah
Based on the Australian Bureau of Statistics 2021 Census (ABS), Marrawah has around 2,919 private dwellings, home to approximately 5,951 people. With an average household size of 2.4 people, and around 50 litres of hot water used per person each day in Australia, Marrawah households use approximately 120 litres of hot water daily, equating to a massive 0.4 million litres of hot water used across the suburb every single day.
Other census insights reinforce Marrawah's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Marrawah community is home to 489 couple families with children and 140 one-parent families, meaning a large proportion of households face substantial hot water demand. With 818 homes owned with a mortgage and 879 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.
Marrawah is converting hot water demand to efficient systems faster than many peers, with 1.2% of dwellings already upgraded.
Hot water systems in Marrawah
Across Marrawah and the wider 7330 area, more locals are starting to look at their old hot water system and wonder if it is time for an upgrade. With energy prices climbing and most homes here being separate houses with an average household size of around 2.4 people, hot water is a big chunk of the power bill. Swapping an older gas or electric hot water system for a modern heat pump hot water system, solar hot water system or efficient electric hot water system is becoming the logical next step for many families.
Marrawah is actually well suited to efficient hot water. The local solar data shows a mean daily solar exposure of about 14.3 MJ/m², which works out to roughly 4 kWh/m² per day across the year. That is solid solar input for a solar hot water heating system and gives a heat pump hot water installation plenty of free energy from the air, even in cooler months. With a median household income that suits careful budgeting and a high proportion of homes owned outright or with a mortgage, upgrading to an energy efficient hot water system can deliver meaningful Annual Hot Water Energy Savings without sacrificing comfort.
In the 7330 postcode there are 2,470 occupied private dwellings, most of them three‑bedroom homes, so typical hot water demand suits a 250–315 litre hot water installation for families and a bit smaller for couples. Many older places still run gas or resistive electric units, which are far from the most efficient hot water system options now available. When you compare heat pump vs solar hot water, both can dramatically cut running costs; the right choice depends on your roof space, budget and whether you already have solar PV. For some households, a modern electric hot water installation set up to run on daytime solar can also make sense.
To give a feel for potential savings, typical ranges for Marrawah homes are:
• Replacing an old electric with a heat pump hot water system: save about $350–$700 per year • Switching gas to a heat pump hot water system: save about $250–$600 per year • Switching gas to a solar hot water system: save about $200–$500 per year • Replacing an old electric with a modern electric hot water system timed to solar: save about $150–$400 per year
Brands like Rheem heat pump hot water units and Rheem solar hot water systems are common, along with Rinnai solar hot water, Sanden heat pump models and Chromagen solar hot water options. Local installers can help you compare these against the best heat pump hot water system choices on the market and work out the hot water system price or heat pump hot water price that suits your budget. If you are comparing solar hot water vs electric hot water or electric hot water vs gas hot water, they can also explain how a solar hot water tank replacement or full solar hot water installation might stack up over time.
In Marrawah and the surrounding 7330 area, there have already been 34 efficient hot water systems installed, combining heat pump and solar hot water installation jobs. The busiest year was 2011, with 11 systems going in, and there was a steady trickle of installs across 2007–2017. That pattern shows growing interest in electrification and lower running costs, even if many homes are yet to make the switch. As more people hear about hot water TAS rebates and energy savings, that uptake is likely to grow.
Hot Water Rebates, Tariffs & Savings
Around Marrawah, more households are now looking to replace old gas or electric units with a heat pump hot water system, efficient electric or solar hot water system. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible heat pump and solar hot water systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate. In Tasmania, these can be combined with state‑based schemes and occasional electric hot water system rebate offers, helping to bring down the heat pump hot water cost or solar hot water price by a substantial percentage. For many homes, that means cutting hundreds of dollars a year from bills and shortening the payback period, especially if you run your hot water system on daytime solar or use timers and smart controls. When you add local hot water rebate tas options into the mix, it becomes easier to choose the best hot water system Australia can offer for your situation.
If you are in Marrawah and your current unit is getting old, running out of hot water or needing regular hot water repair, it is a good time to check whether your home is ready for a heat pump hot water installation, solar hot water repair and upgrade, or a modern electric hot water installation. Working with experienced hot water TAS installers who know Rheem solar hot water, Rinnai solar hot water, Sanden heat pump and Chromagen solar hot water systems means you get tailored advice on the most efficient hot water system for your roof, household size and budget. With strong local interest in sustainability and plenty of solar energy available, an energy efficient hot water system can help cut bills, reduce emissions and future‑proof your home—so reach out to trusted local experts for personalised advice with us.