Hot Water Systems in North Rocks
The 2151 postcode, covering North Rocks and North Parramatta and surrounding areas, is home to around 8,339 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 North Rocks and the 2151 area, 297 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 North Rocks'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 2151
190th
State Wide
812nd
Australia Wide
Hot Water Installation North Rocks
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 North Rocks
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterNorth Rocks
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 North Rocks
Compare heat pump hot water systems suitable for North Rocks'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 - North Rocks, 2151
Hot Water Demographics - North Rocks
Based on the Australian Bureau of Statistics 2021 Census (ABS), North Rocks has around 8,339 private dwellings, home to approximately 19,786 people. With an average household size of 2.6 people, and around 50 litres of hot water used per person each day in Australia, North Rocks households use approximately 130 litres of hot water daily, equating to a massive 1.1 million litres of hot water used across the suburb every single day.
Other census insights reinforce North Rocks's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The North Rocks community is home to 1,916 couple families with children and 316 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,358 homes owned with a mortgage and 1,864 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.
North Rocks is converting hot water demand to efficient systems faster than many peers, with 3.6% of dwellings already upgraded.
Hot water systems in North Rocks
Across North Rocks, more homeowners are swapping old gas and electric units for an energy efficient hot water system that actually keeps bills under control. With an average household size of around 2.6 people and more than 7,600 occupied dwellings, hot water demand is steady all year round. That makes choosing the right hot water system – and the right hot water installation – a smart financial decision, not just a comfort upgrade.
North Rocks enjoys strong sunshine, with mean daily solar exposure of about 16.2 MJ/m², or roughly 4.5 kWh/m² per day over the year. That level of sunlight is ideal for a solar hot water system or heat pump hot water system, especially if you already have rooftop solar. For many families paying a median mortgage of about $2,376 a month, shifting from older gas or resistive electric hot water to an energy efficient hot water system is one of the easiest ways to unlock ongoing savings.
In 2151, a big share of homes are separate houses and townhouses, which gives plenty of roof and yard space for a solar hot water heating system or outdoor heat pump hot water installation. Many local households are busy families and working couples, so reliable hot water repair and planned upgrades matter. When you compare heat pump vs solar hot water, both can dramatically cut running costs compared with electric hot water vs gas hot water, particularly when paired with solar power.
Recent installs in North Rocks show this shift in action. There have been 297 efficient hot water systems installed in the postcode, including heat pump and solar hot water installation projects. Installations spiked around 2008–2010, with 78 systems in 2009 and 47 in 2010, and there has been a steady trickle of new systems each year since. This long-term trend reflects growing interest in electrification, lower running costs and modern options like Rheem heat pump hot water, Sanden heat pump units and brands such as Rinnai and Solahart for solar.
For a typical North Rocks home, hot water can account for a big slice of total energy use. Upgrading from an old electric hot water system to the best heat pump hot water system or a quality rheem solar hot water or chromagen solar hot water setup can noticeably shrink your bills. To give you a feel for the numbers, realistic average annual bill savings can look like:
• Old electric to heat pump hot water system: $400–$800 per year • Gas storage to heat pump hot water: $300–$600 per year • Gas storage to solar hot water system: $250–$550 per year • Old electric to modern electric hot water installation with rooftop solar: $250–$500 per year
In the local market, many households look at brands like Rheem solar hot water and Rinnai solar hot water for roof-mounted collectors, while Sanden heat pump units are popular where people want the most efficient hot water system possible with ultra-low running costs. These sit alongside other options promoted as some of the best hot water system Australia wide, from premium heat pumps to simple, modern electric units.
Hot Water Rebates, Tariffs & Savings
Right across hot water NSW, there is strong interest in replacing ageing gas or electric units with efficient choices such as a heat pump hot water system, updated electric hot water system or solar hot water heating system. For North Rocks homeowners, a mix of Australian Government and NSW incentives can help. Small-scale Technology Certificates (STCs) effectively act as a solar hot water rebate or heat pump hot water rebate, cutting the upfront solar hot water price / cost or heat pump hot water price / cost at the point of sale. On top of this, state programs can operate as an electric hot water system rebate when you move away from gas.
When you add these hot water rebate NSW incentives to the fact that efficient systems can save hundreds of dollars a year, the payback period on a new heat pump or solar hot water tank replacement can shorten to just a few years. Many North Rocks households also use timers or solar diversion so their electric hot water installation or heat pump runs mainly on rooftop solar, boosting savings and making solar hot water vs electric hot water a clear win.
If your current unit is older, noisy or struggling to keep up, it may be time to check whether your North Rocks home is ready for a hot water upgrade. Whether you are moving from gas to an all-electric home, or comparing solar hot water vs electric hot water and heat pump options, working with experienced hot water installers like us makes the process smoother. With strong solar potential and a community that values comfort and sustainability, efficient hot water systems can help cut bills, reduce emissions and future-proof your property. Connect with trusted local experts for personalised advice on the right system, hot water repair or replacement for your place in North Rocks.