Hot Water Systems in Dunearn
The 3175 postcode, covering Dunearn, Bangholme, Dandenong, Dandenong East, Dandenong North and Dandenong South and surrounding areas, is home to around 19,392 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 Dunearn and the 3175 area, 998 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 Dunearn'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 3175
81st
State Wide
300th
Australia Wide
Hot Water Installation Dunearn
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 Dunearn
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterDunearn
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 Dunearn
Compare heat pump hot water systems suitable for Dunearn'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 - Dunearn, 3175
Hot Water Demographics - Dunearn
Based on the Australian Bureau of Statistics 2021 Census (ABS), Dunearn has around 19,392 private dwellings, home to approximately 49,038 people. With an average household size of 2.7 people, and around 50 litres of hot water used per person each day in Australia, Dunearn households use approximately 135 litres of hot water daily, equating to a massive 2.6 million litres of hot water used across the suburb every single day.
Other census insights reinforce Dunearn's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Dunearn community is home to 4,162 couple families with children and 1,007 one-parent families, meaning a large proportion of households face substantial hot water demand. With 4,880 homes owned with a mortgage and 4,894 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.
Dunearn is converting hot water demand to efficient systems faster than many peers, with 5.1% of dwellings already upgraded.
Hot water systems in Dunearn
Across Dunearn, more homeowners are rethinking their hot water system as power prices rise and families look for smarter, cleaner options. With an average household size of about 2.7 people and more than 17,000 occupied dwellings across 3175, reliable, energy efficient hot water is a daily essential. Many homes are still on older gas or electric hot water systems, so upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical next step to cut running costs.
Dunearn’s climate is well suited to efficient hot water technology. Nearby Dandenong records around 15.0 MJ/m² of mean daily solar exposure over the year – roughly 4.2 kWh/m² per day – which is strong enough to support both a solar hot water heating system and high performance heat pump hot water. For local families with median household incomes around $1,313 per week and mortgages to cover, shifting to the most efficient hot water system can free up real money in the budget each year.
In the 3175 area, separate houses make up the bulk of the housing stock, with thousands more townhouses and units. That mix means there is strong demand for compact heat pump hot water installation on tight blocks as well as larger roof-mounted solar hot water installation on family homes. Brands like Rheem heat pump hot water, Sanden heat pump and EvoHeat are popular with households chasing very low running costs, while Rheem solar hot water and Rinnai solar hot water systems are common choices for those with good roof space. For many, a quality Chromagen solar hot water or similar system, paired with rooftop solar, is one of the best hot water system Australia options for long-term savings.
Average annual bill savings in Dunearn will vary, but typical ranges look like this:
• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water system: $300–$600 per year • Gas to solar hot water system: $250–$550 per year • Old electric to modern electric hot water installation with rooftop solar: $250–$500 per year
These savings reflect the fact that hot water can be one of the biggest single energy users in the home, especially for families with teenagers or multi-generational households.
Efficient hot water is not new to Dunearn. There have already been 998 efficient hot water installations (heat pump and solar hot water) recorded in the 3175 postcode. Install numbers were modest in the early 2000s, then jumped sharply between 2008 and 2011, peaking at 147 systems in 2011. After a quieter patch, there was another lift in 2017 and steady interest through to 2024 and 2025. This long-term trend shows how more locals are moving away from gas hot water and older electric units towards electrification, lower running costs and cleaner hot water VIC wide.
Hot Water Rebates, Tariffs & Savings
For Dunearn households, the combination of local solar conditions and government support makes an energy efficient hot water system particularly attractive. Whether you are comparing heat pump vs solar hot water or thinking about solar hot water vs electric hot water, there are Federal and Victorian hot water rebate VIC programs that can significantly reduce upfront costs.
At a national level, eligible heat pump and solar hot water systems can earn Small-scale Technology Certificates (STCs), which act like a discount off the purchase price. On top of that, Victoria offers specific heat pump hot water rebate and solar hot water rebate schemes under its energy efficiency programs. There are also incentives that can apply to an electric hot water system rebate when replacing certain older technologies. Taken together, these discounts can cut the effective heat pump hot water price or cost, or solar hot water price or cost, by a substantial percentage, bringing premium options like Sanden heat pump or high efficiency Rheem solar hot water within reach.
For many Dunearn homes, switching from gas or an old electric hot water system to a modern energy efficient hot water system can save hundreds of dollars per year. When you combine rebates with rooftop solar and smart controls such as timers or solar-diversion, the payback period on a new solar hot water tank replacement or heat pump hot water installation can shorten to just a few years. That is especially appealing for the many local households who own with a mortgage and want predictable, lower bills over the long term.
If you are in Dunearn and your current unit is ageing, noisy or driving up your bills, now is a good time to check whether a hot water upgrade makes sense. Comparing electric hot water vs gas hot water, looking at the best heat pump hot water system for your household, or exploring solar hot water repair and replacement options can feel complex, but you do not have to do it alone. Talk with experienced hot water VIC installers who specialise in heat pump hot water, solar hot water repair and electric hot water installation. With Dunearn’s strong solar resource and growing interest in sustainability, a tailored hot water installation can help reduce your energy bills, cut emissions and future-proof your home—connect with trusted local experts for personalised advice with us.