Hot Water Systems in Warranulla
The 2423 postcode, covering Warranulla, Bombah Point, Boolambayte, Bulahdelah, Bungwahl, Coolongolook, Crawford River, Markwell, Mayers Flat, Mungo Brush, Myall Lake, Nerong, Seal Rocks, Topi Topi, Upper Myall, Violet Hill, Wallingat, Wang Wauk, Willina, Wootton and Yagon and surrounding areas, is home to around 1,612 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 Warranulla and the 2423 area, 244 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 Warranulla'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 2423
222nd
State Wide
909th
Australia Wide
Hot Water Installation Warranulla
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 Warranulla
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterWarranulla
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 Warranulla
Compare heat pump hot water systems suitable for Warranulla'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 - Warranulla, 2423
Hot Water Demographics - Warranulla
Based on the Australian Bureau of Statistics 2021 Census (ABS), Warranulla has around 1,612 private dwellings, home to approximately 2,941 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Warranulla households use approximately 115 litres of hot water daily, equating to a massive 0.2 million litres of hot water used across the suburb every single day.
Other census insights reinforce Warranulla's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Warranulla community is home to 152 couple families with children and 78 one-parent families, meaning a large proportion of households face substantial hot water demand. With 362 homes owned with a mortgage and 660 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.
Warranulla is converting hot water demand to efficient systems faster than many peers, with 15.1% of dwellings already upgraded.
Hot water systems in Warranulla
In Warranulla, more locals are swapping tired old gas and electric units for an energy efficient hot water system that actually suits how they live. With most homes here being separate houses and an average household size of around 2.3 people, a well‑sized hot water system can comfortably cover showers, washing and dishes without wasting power. Median household incomes and mortgages are modest, so cutting running costs matters, and hot water is one of the easiest places to save.
Warranulla enjoys excellent sunshine, with average solar exposure of about 16 MJ/m² per day, or roughly 4.4 kWh/m²/day across the year. That strong sun makes a solar hot water system or heat pump hot water system a logical next step if you are upgrading. Families and retirees alike are starting to realise that moving from older gas or resistive electric to a modern heat pump or solar hot water heating system can trim hundreds of dollars a year off bills, while still giving reliable hot water NSW homes can depend on.
Across the 2423 postcode there are more than 1,200 occupied dwellings, and hot water is a big slice of each home’s energy use. Many properties still run on gas or older cylinders, but efficient hot water installation is steadily growing. For a typical Warranulla home, hot water can be 20–30% of total energy, so choosing the most efficient hot water system has a real impact. Modern options include high‑performance heat pump hot water, roof‑mounted solar hot water vs electric hot water upgrades, and newer electric hot water system designs that work beautifully with rooftop solar.
Average annual bill savings for local upgrades often look like:
• Old electric to heat pump hot water system: $450–$750 per year • Gas to heat pump: $350–$600 per year • Gas to solar hot water system: $300–$550 per year • Old electric to modern electric hot water installation with solar: $250–$500 per year
Brands like Rheem heat pump hot water and Rheem solar hot water are common choices for reliable performance, while Sanden heat pump systems are popular with households chasing the best heat pump hot water system and ultra‑low running costs. Rinnai solar hot water and Chromagen solar hot water options also appear on many rural and coastal properties, especially where roof space and sun exposure are excellent. For many homes, these are contenders for the best hot water system Australia can offer in real‑world conditions.
Recent installs in Warranulla tell the story. There have been 244 efficient hot water systems installed in the postcode, including both heat pump hot water installation and solar hot water installation projects. Installations jumped sharply around 2007–2011, with a peak of 49 systems in 2009 when rebates were strong, and there has been a steady trickle of upgrades since, including new systems in 2023 and 2025. Each solar or heat pump system added reflects growing interest in electrification, lower running costs and a quieter, cleaner alternative to gas.
Hot Water Rebates, Tariffs & Savings
Right now, many Warranulla households are weighing up heat pump vs solar hot water, or even solar hot water vs electric hot water, as they plan their next hot water upgrade. Federal incentives like Small‑scale Technology Certificates (STCs) can reduce the effective solar hot water price / cost or heat pump hot water price / cost by a substantial percentage, while NSW hot water rebate programs and electric hot water system rebate offers can further cut the upfront hot water system price / cost. For eligible homes, a combined solar hot water rebate or heat pump hot water rebate plus STCs can shorten payback to just a few years, especially if you already have rooftop solar.
For many Warranulla properties, an energy efficient hot water system can shave hundreds of dollars a year off bills. Using timers to run an electric hot water system during solar hours, or adding solar‑diversion controls, can turn your cylinder into a thermal battery. When you factor in lower solar hot water price / cost over the life of the unit and fewer call‑outs for hot water repair or solar hot water repair, the numbers often stack up well against staying on gas hot water. There are also options for solar hot water tank replacement when an older system fails, allowing you to step up to today’s most efficient technology instead of like‑for‑like.
If you are in Warranulla and wondering about electric hot water vs gas hot water, or which energy efficient option is right for you, now is a good time to take stock. With strong sun, solid solar uptake nearby and growing interest in sustainability, local homes are well placed to benefit. Whether you are comparing heat pump hot water price / cost, looking at a new solar hot water heating system, or simply planning an electric hot water installation that works better with solar, it pays to get proper advice.
Before your old unit fails, it is worth checking if your Warranulla home is ready for a smarter hot water upgrade. Talk with our experienced hot water installers about options like heat pump hot water, solar hot water systems or modern electric hot water that suit your roof, budget and family size. With generous hot water rebate NSW programs, strong solar exposure and reliable brands like Rheem, Rinnai, Sanden and Chromagen, you can cut bills, lower emissions and future‑proof your place. Connect with our trusted local experts for personalised advice on the most efficient hot water system for your home.
