Hot Water Systems in Reservoir East
The 3073 postcode, covering Reservoir East, Keon Park, Reservoir, 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 East 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 East'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 East
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 East
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterReservoir East
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.
Want Solar Finance Options?
Compare lenders and get tailored loan offers.
Heat Pump Hot Water Systems for Reservoir East
Compare heat pump hot water systems suitable for Reservoir East'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 East, 3073
Hot Water Demographics - Reservoir East
Based on the Australian Bureau of Statistics 2021 Census (ABS), Reservoir East 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 East 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 East's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Reservoir East 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 East is converting hot water demand to efficient systems faster than many peers, with 7.4% of dwellings already upgraded.
Hot water systems in Reservoir East
Across Reservoir East, more homeowners are switching from old gas and ageing electric units to an energy efficient hot water system that actually suits Melbourne bills and weather. With an average household size of about 2.4 people and more than 20,000 dwellings in the 3073 area, reliable hot water is non‑negotiable – but so is keeping running costs under control. Many families are paying off mortgages of around $1,986 a month, so upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical way to free up cashflow.
Reservoir East is well placed for efficient hot water upgrades. Local solar exposure averages about 15 MJ/m² per day – roughly 4.2 kWh/m² – which is strong support for both a solar hot water heating system and high‑performance heat pump hot water that draws on ambient air. For the many homes owned outright or with a mortgage, a hot water installation is often the next step after rooftop solar, locking in annual hot water energy savings and cutting dependence on gas.
In 3073, separate houses and townhouses dominate, so there’s plenty of roof and yard space to size a hot water system properly for local demand. Hot water energy use can easily be a quarter of a home’s electricity, so choosing the most efficient hot water system matters. Many Reservoir East households are comparing heat pump vs solar hot water, or looking at solar hot water vs electric hot water with solar PV backing it up. Brands like Rheem heat pump hot water, Sanden heat pump units, Rinnai solar hot water and Chromagen solar hot water are common options alongside other efficient systems on the market when people search for the best hot water system Australia wide.
When you run the numbers, the hot water system price or cost often looks less scary once you factor in lower bills. Typical annual bill savings in Reservoir East might look like:
• Old electric to heat pump hot water system: save around $350–$650 per year • Gas to heat pump hot water: save around $250–$550 per year • Gas to solar hot water system: save around $200–$500 per year • Old electric to modern electric hot water system with solar: save around $250–$450 per year
Local installation data backs up this shift. There have already been 1,648 efficient hot water installations – mainly heat pump hot water installation and solar hot water installation – recorded in the 3073 postcode. After just a handful of installs in the early 2000s, numbers jumped sharply from 2007, peaking around 2010–2013 when more than 150 systems a year were going in. While yearly installations have eased back since, the steady stream of systems added through to 2024 and 2025 shows ongoing interest in electrification, lower running costs and hot water repair or replacement that moves homes away from gas.
Hot Water Rebates, Tariffs & Savings
Right now, there’s growing interest in Reservoir East in replacing old gas or electric hot water with efficient options such as heat pumps, modern electric hot water installation and solar hot water installation. Federal incentives like Small‑scale Technology Certificates (STCs) apply to eligible heat pump and solar hot water heating systems, effectively reducing the upfront solar hot water price or cost and heat pump hot water price or cost at the point of sale. On top of that, Victorian programmes can offer a heat pump hot water rebate, solar hot water rebate or even an electric hot water system rebate in some circumstances, all helping trim the hot water system price / cost for local households.
For many Reservoir East homes, these hot water rebate VIC options can cut the installed cost by a substantial percentage and shorten the payback period to just a few years, especially if you already have solar panels. Using timers or solar diversion to run an electric hot water system when your PV is generating can boost savings even further. Add in the option of solar hot water tank replacement or solar hot water repair instead of full replacement, and an energy efficient hot water system becomes an easy way to shave hundreds of dollars a year off bills.
If you’re in Reservoir East and your current unit is old, noisy or running on gas, now is a smart time to check whether your home is ready for a hot water upgrade. Whether you’re weighing up electric hot water vs gas hot water, comparing heat pump vs solar hot water, or chasing the best heat pump hot water system for your family, working with experienced hot water VIC installers who specialise in heat pump and solar hot water repair and installation is essential. With strong local solar resources, a community that’s increasingly focused on sustainability, and generous hot water rebate VIC support, an efficient system can reduce bills, cut emissions and future‑proof your home. Connect with trusted local experts for personalised advice with us and find the right hot water systems Reservoir East households can rely on for years to come.