Hot Water Systems in Warilla
The 2528 postcode, covering Warilla, Barrack Heights, Barrack Point, Lake Illawarra, Mount Warrigal and Windang and surrounding areas, is home to around 10,106 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 Warilla and the 2528 area, 814 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 Warilla's climate delivering an average of 4.5 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 2528
82nd
State Wide
370th
Australia Wide
Hot Water Installation Warilla
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 Warilla
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterWarilla
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 Warilla
Compare heat pump hot water systems suitable for Warilla'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 - Warilla, 2528
Hot Water Demographics - Warilla
Based on the Australian Bureau of Statistics 2021 Census (ABS), Warilla has around 10,106 private dwellings, home to approximately 22,272 people. With an average household size of 2.4 people, and around 50 litres of hot water used per person each day in Australia, Warilla households use approximately 120 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 Warilla's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Warilla community is home to 1,367 couple families with children and 764 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,351 homes owned with a mortgage and 3,577 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.
Warilla is converting hot water demand to efficient systems faster than many peers, with 8.1% of dwellings already upgraded.
Hot water systems in Warilla
Across Warilla and the 2528 postcode, more households are swapping old gas and electric units for an energy efficient hot water system that keeps bills down and showers steaming. With an average household size of 2.4 people and more than 9,400 dwellings, there is strong demand for reliable hot water that does not blow the budget. Many homes are owned outright or with a mortgage, so upgrading a tired hot water system is a logical next step to improve comfort and property value.
Warilla’s coastal climate is ideal for efficient hot water. The local solar exposure averages around 16 MJ/m² a day – roughly 4.4 kWh/m² – which gives both a solar hot water system and a modern heat pump hot water system plenty of free energy to work with. For families on a median household income of about $1,166 a week, shifting from old gas or resistive electric hot water to a more efficient hot water installation can mean meaningful annual hot water energy savings without sacrificing comfort.
Around 814 efficient hot water systems have already been installed in the area, including heat pump and solar hot water installation projects, showing a clear shift towards electrification and lower running costs. Many separate houses and townhouses in Warilla are perfectly suited to a roof mounted solar hot water heating system with a ground or roof tank, while units and villas often lean towards compact heat pump hot water installation or a slimline electric hot water system replacement.
For a typical Warilla home, hot water can be one of the biggest energy users, especially in all electric homes without gas cooking or heating. That is why more locals are comparing heat pump vs solar hot water and even looking at solar hot water vs electric hot water to find the most efficient hot water system for their needs. Well known brands like Rheem solar hot water, Rinnai solar hot water, Sanden heat pump and Thermann heat pump units are common options when people research the best hot water system Australia wide, or the best heat pump hot water system for a coastal climate.
Typical annual bill savings for Warilla households can look like this:
• Replacing an old electric hot water system with a heat pump hot water system: save roughly $400–$800 per year. • Switching from gas hot water to a heat pump hot water system: save around $300–$700 per year. • Swapping gas for a solar hot water system: save about $250–$600 per year. • Upgrading an old electric unit to a modern electric hot water system and using rooftop solar: save roughly $200–$500 per year.
Local hot water repair and hot water installation work covers everything from emergency electric hot water repair to planned solar hot water tank replacement. Many homes are also replacing older roof tanks with newer Rheem heat pump hot water or Sanden heat pump units to create an energy efficient hot water system that pairs well with existing rooftop solar. Others prefer Chromagen solar hot water or Rinnai solar hot water options when they want a traditional solar hot water price / cost balance with solid performance.
Looking at installation trends, Warilla saw early growth in efficient hot water from the mid‑2000s, with a big spike around 2009–2011 when more than 500 systems were installed in just three years. Since then, installations have steadied but continue each year, reflecting ongoing interest in hot water NSW upgrades as systems age out and residents chase lower bills and better reliability. Recent years still show new systems going in, especially as people look to move away from gas and prepare for an all‑electric home.
Hot Water Rebates, Tariffs & Savings
Across Warilla, more people are asking whether to replace old gas or electric hot water with a heat pump hot water system, a modern electric hot water system or a solar hot water system. Federal incentives such as Small‑scale Technology Certificates (STCs) help cut the solar hot water price / cost and heat pump hot water price / cost by effectively discounting efficient systems at the point of sale. On top of this, there are state hot water rebate NSW programs that can offer a solar hot water rebate, a heat pump hot water rebate or even an electric hot water system rebate when moving away from gas.
For Warilla homeowners, these hot water rebate NSW schemes can reduce upfront cost by a substantial percentage, often shaving many hundreds of dollars off the installed price. When you combine rebates with off‑peak tariffs, timers or solar diversion from rooftop PV, the payback period on a hot water upgrade can shrink to just a few years. Over the life of the system, that can mean thousands of dollars saved, especially when you choose an energy efficient hot water system that suits your household size and roof space.
If you live in Warilla and your current unit is rusty, noisy or more than ten years old, this is a great time to check whether a heat pump hot water system, solar hot water system or modern electric hot water installation could work for you. Working with experienced local hot water installers like us means you get honest advice on heat pump vs solar hot water, solar hot water vs electric hot water, system sizing, brands and rebates. With Warilla’s strong solar resource and growing interest in sustainability, an efficient hot water system can cut your bills, reduce emissions and future‑proof your home. Reach out to our trusted local experts for personalised advice and a clear quote on your next hot water upgrade.