Hot Water Systems in Reservoir
The 3073 postcode, covering Reservoir, Keon Park, Reservoir East, Reservoir North and Reservoir South and surrounding areas, is home to around 22,212 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 Reservoir and the 3073 area, 1,648 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 Reservoir's climate delivering an average of 4.2 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 3073
49th
State Wide
152nd
Australia Wide
Hot Water Installation Reservoir
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 Reservoir
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterReservoir
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 Reservoir
Compare heat pump hot water systems suitable for Reservoir'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 - Reservoir, 3073
Hot Water Demographics - Reservoir
Based on the Australian Bureau of Statistics 2021 Census (ABS), Reservoir has around 22,212 private dwellings, home to approximately 48,112 people. With an average household size of 2.4 people, and around 50 litres of hot water used per person each day in Australia, Reservoir households use approximately 120 litres of hot water daily, equating to a massive 2.7 million litres of hot water used across the suburb every single day.
Other census insights reinforce Reservoir's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Reservoir community is home to 3,817 couple families with children and 871 one-parent families, meaning a large proportion of households face substantial hot water demand. With 5,885 homes owned with a mortgage and 6,267 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.
Reservoir is converting hot water demand to efficient systems faster than many peers, with 7.4% of dwellings already upgraded.
Hot water systems in Reservoir
Across Reservoir, more households are switching to energy efficient hot water systems to beat rising power prices and move away from gas. With an average household size of around 2.4 people and more than 20,000 dwellings, there is steady demand for reliable hot water that does not cost a fortune to run. Many homes are older separate houses, with a mix of families and long‑term owner‑occupiers paying off mortgages, so upgrading an old gas or electric hot water system is a logical next step to cut bills. Reservoir enjoys solid sunshine, with mean daily solar exposure of about 15 MJ/m², or roughly 4.2 kWh/m² per day, which supports excellent performance from both a solar hot water system and a modern heat pump hot water system.
Local data shows a clear shift towards efficient technology. There have already been 1,648 efficient hot water installations in the 3073 postcode, mainly heat pump and solar hot water heating system upgrades. For busy Reservoir families, a modern electric hot water system, solar hot water system or heat pump hot water system can slash the share of energy used for water heating, which is often one of the biggest loads in the home. Brands like Rheem heat pump hot water, Sanden heat pump and Rinnai solar hot water are popular options for those chasing the most efficient hot water system, while Chromagen solar hot water and Rheem solar hot water remain trusted choices for roof‑mounted solar hot water installation.
Over the years, installations really took off from 2007, peaking between 2008 and 2013 when more than a hundred systems were installed most years. While the annual numbers have eased back more recently, there is still a steady trickle of heat pump hot water installation and solar hot water repair and replacement work as older units reach the end of their life. This trend reflects growing local interest in electrification, lower running costs and cutting emissions in Reservoir. Many homes that already have rooftop solar are now looking at solar hot water vs electric hot water and heat pump vs solar hot water to decide the best fit.
When it comes to hot water system price, Reservoir homeowners are often weighing upfront hot water system cost against long‑term savings. Typical annual bill savings can look like this:
• Replacing an old electric hot water system with a quality heat pump hot water system: about $350–$700 per year. • Swapping gas hot water for a heat pump: around $250–$600 per year. • Changing gas hot water to a roof‑mounted solar hot water heating system: roughly $300–$650 per year. • Upgrading an old electric unit to a modern electric hot water installation paired with rooftop solar: about $250–$500 per year.
Federal incentives such as Small‑scale Technology Certificates (STCs), along with Victorian hot water rebate VIC programs, can significantly reduce the effective heat pump hot water price or solar hot water price. There are also electric hot water system rebate options when you replace inefficient units with an energy efficient hot water system. These hot water rebate VIC schemes can trim the upfront cost by a substantial percentage, shortening the payback period to just a few years, especially if you use timers or solar diversion to run your system when your solar is generating.
Whether you are comparing electric hot water vs gas hot water, or deciding between the best heat pump hot water system and the best hot water system Australia has to offer in solar, it pays to look at whole‑of‑life cost. A well sized heat pump or solar hot water tank replacement can deliver decades of lower bills, fewer hot water repair call‑outs and more predictable running costs.
If your current unit is older, noisy or struggling, this is a good time to see if your Reservoir home is ready for a hot water upgrade. Talk with experienced local hot water installers like us who specialise in heat pump hot water installation, solar hot water installation, electric hot water installation and hot water repair. With Reservoir’s strong solar resource and growing interest in sustainability, an efficient hot water system can help you cut bills, reduce emissions and future‑proof your home. Connect with trusted local experts for personalised advice on the right hot water system VIC solution for your place and budget.