Hot Water Systems in Warrawee
The 2074 postcode, covering Warrawee, Bobbin Head, North Turramurra, South Turramurra and Turramurra and surrounding areas, is home to around 8,610 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 Warrawee and the 2074 area, 501 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 Warrawee's climate delivering an average of 4.4 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 2074
127th
State Wide
566th
Australia Wide
Hot Water Installation Warrawee
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 Warrawee
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterWarrawee
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 Warrawee
Compare heat pump hot water systems suitable for Warrawee'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 - Warrawee, 2074
Hot Water Demographics - Warrawee
Based on the Australian Bureau of Statistics 2021 Census (ABS), Warrawee has around 8,610 private dwellings, home to approximately 22,378 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Warrawee households use approximately 140 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 Warrawee's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Warrawee community is home to 2,246 couple families with children and 267 one-parent families, meaning a large proportion of households face substantial hot water demand. With 3,023 homes owned with a mortgage and 3,409 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.
Warrawee is converting hot water demand to efficient systems faster than many peers, with 5.8% of dwellings already upgraded.
Hot water systems in Warrawee
In Warrawee, more homeowners are rethinking their old gas and electric hot water systems and moving to smarter, energy efficient options. With an average household size of around 2.8 people and more than 8,000 dwellings across 2074, reliable hot water is non‑negotiable, but rising energy costs mean the type of hot water system you choose really matters. Many local homes are owned outright or with a mortgage, which makes upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system a logical next step.
Warrawee’s climate helps, too. The nearby Wahroonga weather station records mean daily solar exposure of about 15.7 MJ/m², which works out to roughly 4.4 kWh of solar energy per square metre per day over the year. That is solid sunlight for both a solar hot water heating system and a high‑quality heat pump hot water system, especially when paired with rooftop solar. For families and professionals with higher‑than‑average household incomes in 2074, switching from older gas or off‑peak electric units to an energy efficient hot water system can deliver substantial Annual Hot Water Energy Savings while cutting emissions.
Across postcode 2074 there are many larger homes with three, four and even five bedrooms, so hot water demand is significant. Efficient hot water systems installed in these homes can make a noticeable dent in overall electricity use, particularly when you compare an older electric hot water system vs gas hot water and then step up again to heat pump or solar. Brands like Rheem heat pump hot water and Rheem solar hot water are popular for established family homes, while Rinnai solar hot water and Sanden heat pump options are often chosen by those chasing the most efficient hot water system on the market. In units and townhouses, compact systems from makers such as Chromagen solar hot water and other reputable suppliers can be a strong fit where roof space is limited.
Typical savings in Warrawee will vary, but many households see the following ballpark annual bill reductions after hot water installation upgrades:
• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water system: $300–$700 per year • Gas to solar hot water system: $250–$600 per year • Old electric to modern electric hot water installation with rooftop solar: $250–$500 per year
Recent figures show 501 efficient hot water systems have been installed in 2074, covering both heat pump hot water installation and solar hot water installation. Installations peaked around 2009 and 2010, then steadied with a consistent trickle of new systems each year through to 2025. This long‑term pattern reflects a steady interest in electrification, better hot water repair and replacement options, and lower running costs as more residents compare heat pump vs solar hot water and even solar hot water vs electric hot water when their old unit fails.
Hot Water Rebates, Tariffs & Savings
In Warrawee, there is growing interest in replacing ageing gas and resistive electric units with efficient options like heat pumps, modern electric systems and solar hot water. Australian Government Small‑scale Technology Certificates (STCs) apply to eligible systems, effectively acting as an upfront discount on solar hot water price / cost and heat pump hot water price / cost. NSW hot water rebate programs and other state‑based incentives can further reduce the solar hot water price / cost or the cost of a best heat pump hot water system, especially when combined with an electric hot water system rebate or targeted heat pump hot water rebate. For many Warrawee homes, these hot water rebate nsw schemes can trim the hot water system price / cost by a substantial percentage and cut payback times to just a few years. When you add timers, smart controls or solar‑diversion to prioritise daytime heating, your most efficient hot water system can save hundreds of dollars a year while improving comfort and reliability.
If your current unit is nearing the end of its life, needs regular hot water repair, or you are facing a solar hot water tank replacement, it is a smart time to review your options. Whether you are comparing solar hot water vs electric hot water, looking at the best hot water system Australia can offer for an all‑electric home, or simply want dependable hot water nsw‑wide, talking to experienced local installers makes all the difference. In Warrawee, working with trusted heat pump and solar hot water specialists means you get tailored advice on system sizing, tariffs, solar integration and ongoing solar hot water repair and servicing. Reach out to our local team to check if your home is ready for a hot water upgrade and get personalised guidance on the right energy efficient hot water system to reduce bills, cut emissions and future‑proof your property.