Hot Water Systems in Rosehill
The 2142 postcode, covering Rosehill, Blaxcell, Camellia, Clyde, Granville, Holroyd and South Granville and surrounding areas, is home to around 10,327 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 Rosehill and the 2142 area, 110 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 Rosehill'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 2142
350th
State Wide
1368th
Australia Wide
Hot Water Installation Rosehill
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 Rosehill
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterRosehill
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 Rosehill
Compare heat pump hot water systems suitable for Rosehill'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 - Rosehill, 2142
Hot Water Demographics - Rosehill
Based on the Australian Bureau of Statistics 2021 Census (ABS), Rosehill has around 10,327 private dwellings, home to approximately 25,774 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Rosehill households use approximately 140 litres of hot water daily, equating to a massive 1.4 million litres of hot water used across the suburb every single day.
Other census insights reinforce Rosehill's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Rosehill community is home to 2,235 couple families with children and 415 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,149 homes owned with a mortgage and 1,511 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.
Rosehill is converting hot water demand to efficient systems faster than many peers, with 1.1% of dwellings already upgraded.
Hot water systems in Rosehill
In Rosehill, more homeowners and businesses are rethinking their old gas and electric hot water systems and moving to energy efficient options. With an average household size of around 2.8 people and a mix of family homes and apartments, reliable hot water is essential – but so are manageable power bills. Rising energy costs mean upgrading to a modern hot water system is a logical next step, especially when you factor in the annual hot water energy savings now possible in Rosehill.
Local conditions are ideal for efficient hot water. The Granville Shell Refinery weather station shows Rosehill enjoys about 16.2 MJ of solar energy per square metre per day over the year – roughly 4.5 kWh/m²/day. That strong sunlight helps a solar hot water system or heat pump hot water system perform really well, slashing running costs compared with older gas hot water or resistive electric units. With a relatively young median age of 31 and many households renting or paying a mortgage, long term savings and lower maintenance are increasingly important when choosing the best hot water system Australia can offer for local conditions.
Across the 2142 area there are more than 8,900 occupied dwellings, from separate houses to over 4,500 flats and apartments. That translates into strong demand for dependable hot water, whether it is a compact electric hot water system in a unit or a family sized solar hot water heating system on a freestanding home. Many homes still run on older gas or off‑peak electric, so the potential community hot water energy savings from efficient heat pump hot water installation or solar hot water installation are significant.
Average annual bill savings for Rosehill households can look like this:
• Replacing an old electric hot water system with a quality heat pump hot water system: around $350–$700 per year. • Switching from gas hot water to a heat pump: about $250–$600 per year. • Moving from gas to a roof‑mounted solar hot water system: roughly $300–$650 per year. • Upgrading an old electric hot water system to a modern electric hot water installation paired with rooftop solar: about $250–$550 per year.
Brands like Rheem heat pump hot water and Rheem solar hot water are common choices for family homes, while Sanden heat pump units are popular where ultra low running costs and quiet operation matter. Rinnai solar hot water and Chromagen solar hot water options also appear on local roofs, giving Rosehill households a wide range of energy efficient hot water system choices to suit different budgets and spaces.
Recent data shows 110 efficient hot water systems – mainly heat pump and solar hot water – have been installed in the 2142 postcode. Installations picked up sharply around 2009–2011, with a peak of 21 systems in 2010, and steady activity in other years right through to new installs in 2025. This steady stream of hot water installation work reflects growing interest in electrification, lower running costs and cutting emissions in Rosehill NSW. As more homes add rooftop solar, questions like heat pump vs solar hot water and solar hot water vs electric hot water are becoming part of everyday renovation planning.
Hot Water Rebates, Tariffs & Savings
For Rosehill households looking to replace old gas or electric units, there is strong support for efficient upgrades. Australian Government Small‑scale Technology Certificates (STCs) effectively act as a solar hot water rebate or heat pump hot water rebate, reducing the upfront solar hot water price / cost or heat pump hot water price / cost. Newer efficient electric hot water system rebate programs in NSW can also help when moving away from gas. Combined, these hot water rebate nsw schemes can trim the system cost by a substantial percentage, often cutting payback periods to just a few years, especially when paired with rooftop solar and smart timers or solar diversion controls. Many households see hundreds of dollars per year in savings, particularly when choosing the most efficient hot water system they can reasonably fit and afford.
Whether you are weighing up electric hot water vs gas hot water, comparing heat pump vs solar hot water, or planning a solar hot water tank replacement, it pays to get local advice. If your current unit is older, noisy or unreliable and you are curious about an energy efficient hot water system – from a compact electric hot water installation to a full solar hot water repair and upgrade – now is a smart time to act. Talk with experienced hot water repair and installation specialists in Rosehill NSW who work with leading brands like Rheem, Rinnai, Sanden and Chromagen, understand local tariffs and hot water rebate nsw options, and can recommend the best heat pump hot water system or solar hot water repair and upgrade for your home. A tailored hot water system price / cost quote will help you reduce bills, cut emissions and future‑proof your home – connect with trusted local experts for personalised advice with us.