Hot Water Systems in Erith
The 5461 postcode, covering Erith, Balaklava, Bowillia, Dalkey, Everard Central, Goyder, Halbury, Hoskin Corner, Mount Templeton, Saints, Stow, Watchman and Whitwarta and surrounding areas, is home to around 1,174 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 Erith and the 5461 area, 109 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 Erith's climate delivering an average of 4.9 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 5461
142nd
State Wide
1377th
Australia Wide
Hot Water Installation Erith
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 Erith
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterErith
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 Erith
Compare heat pump hot water systems suitable for Erith'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 - Erith, 5461
Hot Water Demographics - Erith
Based on the Australian Bureau of Statistics 2021 Census (ABS), Erith has around 1,174 private dwellings, home to approximately 2,400 people. With an average household size of 2.4 people, and around 50 litres of hot water used per person each day in Australia, Erith households use approximately 120 litres of hot water daily, equating to a massive 0.1 million litres of hot water used across the suburb every single day.
Other census insights reinforce Erith's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Erith community is home to 191 couple families with children and 68 one-parent families, meaning a large proportion of households face substantial hot water demand. With 312 homes owned with a mortgage and 418 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.
Erith is converting hot water demand to efficient systems faster than many peers, with 9.3% of dwellings already upgraded.
Hot water systems in Erith
Across Erith and the wider 5461 farming district, more households are quietly upgrading to an energy efficient hot water system. With most homes being separate houses and an average household size of about 2.4 people, hot water demand is steady year-round, and rising energy prices mean old gas and electric units are becoming expensive to run. Swapping to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a simple way to lock in long-term savings. Local solar exposure is excellent, with Balaklava’s weather station showing around 17.8 MJ/m² of sunshine per day on average – roughly 4.9–5.0 kWh/m² per day – ideal for both a solar hot water heating system and for powering a heat pump from rooftop solar.
Many Erith households own their homes outright or with a mortgage, so planning a smart hot water installation is about protecting the property as well as the budget. Families and older couples make up a big share of the area, and reliable, affordable hot water is essential. Upgrading from an old gas or electric hot water system can cut the energy used for water heating by more than half, delivering meaningful Annual Hot Water Energy Savings for typical Erith homes.
In a postcode with over 1,000 dwellings, demand for the best hot water system Australia can offer is growing, especially as more people look to move away from gas. For a typical three‑bedroom home, a 250–315 L heat pump hot water installation or a similar-sized solar hot water tank replacement usually suits everyday needs, while smaller two‑bedroom homes can often manage with 160–250 L. Hot water makes up a large chunk of household energy use, so choosing the most efficient hot water system you can afford really pays off.
Average annual bill savings in Erith can look like: • Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water: $300–$700 per year • Gas to solar hot water system: $250–$600 per year • Old electric to modern electric hot water installation with good rooftop solar: $250–$500 per year
Brands like Rheem heat pump hot water, Rinnai solar hot water, Sanden heat pump and Chromagen solar hot water are all popular options locally, offering a mix of traditional electric hot water, premium heat pumps and robust solar hot water installation packages. Comparing heat pump vs solar hot water, many Erith homes with good roof space and sun exposure lean to a solar hot water heating system, while shaded or smaller roofs often favour a high-performance heat pump as the most energy efficient hot water system.
Recent data shows 109 efficient hot water systems – mainly heat pump and solar hot water – have already been installed across the 5461 postcode. Installations peaked around 2008, with strong years in 2006, 2010 and again in 2018, reflecting waves of interest as rebates improved and power prices rose. Even with quieter years more recently, this steady base of systems shows ongoing local interest in electrification, lower running costs and reliable hot water SA households can count on.
Hot Water Rebates, Tariffs & Savings
Around Erith, more people are now replacing ageing gas units with either a quality heat pump hot water system, a new solar hot water system or a modern electric hot water system designed to work with solar. Federal incentives such as Small-scale Technology Certificates (STCs) can lower the effective heat pump hot water price or solar hot water price by providing an upfront discount. On top of that, state-based schemes can offer a heat pump hot water rebate, solar hot water rebate or even an electric hot water system rebate in SA, bringing the overall hot water system price down significantly.
When you add these hot water rebate SA incentives to smart tariffs and solar, many Erith households see payback periods shrink to just a few years, with typical savings of hundreds of dollars a year off power bills. Using timers, or solar-diversion controls that run your electric hot water vs gas hot water during the middle of the day, can squeeze out even more value and make solar hot water vs electric hot water running costs very attractive. With the right setup, an energy efficient hot water system becomes a key part of an all-electric home.
If your current unit is older, noisy or struggling, this is a good time to check whether your Erith home is ready for a hot water upgrade. Whether you are considering rheem solar hot water, rinnai solar hot water, a premium sanden heat pump or another of the best heat pump hot water system options, working with experienced local hot water installers matters. With strong solar, a community already investing in efficient systems and generous hot water rebate SA programs, a new system can reduce bills, cut emissions and future-proof your home. For personalised advice on hot water repair, solar hot water repair, electric hot water vs gas hot water choices and the true heat pump hot water cost in Erith, connect with trusted local experts with us and explore the right solution for your property.