Hot Water Systems in Great Southern
The 3685 postcode, covering Great Southern, Dugays Bridge, Norong Central, Prentice North, Boorhaman North, Brimin, Browns Plains, Carlyle, Gooramadda, Lake Moodemere and Rutherglen and surrounding areas, is home to around 1,343 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 Great Southern and the 3685 area, 167 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 Great Southern's climate delivering an average of 4.8 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 3685
309th
State Wide
1122nd
Australia Wide
Hot Water Installation Great Southern
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 Great Southern
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterGreat Southern
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 Great Southern
Compare heat pump hot water systems suitable for Great Southern'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 - Great Southern, 3685
Hot Water Demographics - Great Southern
Based on the Australian Bureau of Statistics 2021 Census (ABS), Great Southern has around 1,343 private dwellings, home to approximately 2,686 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Great Southern households use approximately 115 litres of hot water daily, equating to a massive 0.2 million litres of hot water used across the suburb every single day.
Other census insights reinforce Great Southern's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Great Southern community is home to 196 couple families with children and 65 one-parent families, meaning a large proportion of households face substantial hot water demand. With 399 homes owned with a mortgage and 513 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.
Great Southern is converting hot water demand to efficient systems faster than many peers, with 12.4% of dwellings already upgraded.
Hot water systems in Great Southern
Across Great Southern, more households are rethinking their hot water system and moving to efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With most of the 1,186 dwellings here being separate houses and an average household size of 2.3 people, hot water is a big chunk of energy use, especially for busy families and older residents. Upgrading from older gas or electric units to an energy efficient hot water system is a logical next step for cutting bills and emissions.
Great Southern enjoys strong sunshine, with average annual solar exposure of around 17.4 MJ/m² a day (roughly 4.8 kWh/m² per day). That makes a solar hot water heating system or a high‑quality heat pump hot water installation a smart match for the local climate. Many households own their home outright or with a mortgage, and with a median household income of about $1,351 a week, there is solid capacity to invest in upgrades that deliver long‑term savings. Annual hot water energy savings from switching to efficient technology can easily reach hundreds of dollars a year for a typical three‑bedroom home.
In the 3685 area, most homes are larger detached houses, so hot water demand is steady year‑round. Hot water can be 20–30% of total household energy use, so choosing the most efficient hot water system really matters. Locals are increasingly comparing heat pump vs solar hot water, and even solar hot water vs electric hot water, to find the best balance of upfront hot water system price and running costs. Popular brands in the region include Rheem heat pump hot water units, Rheem solar hot water systems, Rinnai solar hot water and premium Sanden heat pump systems for those chasing the most efficient hot water system on the market.
Typical annual bill savings for Great Southern homes can look like this:
• Old electric to quality heat pump: save around $350–$700 per year. • Gas to heat pump: save about $300–$600 per year. • Gas to solar hot water: save roughly $250–$550 per year. • Old electric to new electric hot water with rooftop solar: save around $250–$500 per year.
These savings depend on your usage, tariffs and whether you already have solar, but they give a realistic guide when weighing heat pump hot water price, solar hot water price and overall hot water system cost.
Efficient hot water is already taking off locally. In Great Southern, 167 efficient hot water systems have been installed so far, including both heat pump and solar hot water installation projects. Installations climbed sharply from the mid‑2000s, with peaks around 2008–2010 and again in 2019 and 2021, showing steady interest in electrification and lower running costs. Recent years still see regular hot water installation work as older systems reach the end of their life and people look for the best hot water system Australia can offer for reliability and savings.
Even if you are just replacing a failed unit, it is a good time to think beyond like‑for‑like hot water repair. Across hot water VIC, homeowners are swapping old gas and resistive electric units for heat pump hot water, solar hot water and smarter electric hot water installation options. Federal incentives such as Small‑scale Technology Certificates (STCs) help reduce upfront cost for eligible solar hot water and heat pump systems, while the Victorian hot water rebate VIC programs can offer additional support. Together, these hot water rebate VIC schemes, including the solar hot water rebate, heat pump hot water rebate and electric hot water system rebate, can effectively cut system cost by a substantial percentage and shorten payback to just a few years. Add timers or solar‑diversion controls and you can push more of your hot water use into the middle of the day, further improving savings.
If your current unit is old, unreliable or running on gas, it is a great time to check whether your Great Southern home is ready for a hot water upgrade. Whether you are weighing heat pump vs solar hot water, considering electric hot water vs gas hot water, or planning a solar hot water tank replacement and solar hot water repair, working with experienced local installers like us makes all the difference. With Great Southern’s strong solar resource and growing focus on sustainability, efficient hot water systems can reduce bills, cut emissions and future‑proof your home. Reach out to our trusted local hot water repair and installation specialists for personalised advice on the best heat pump hot water system or solar hot water systems Great Southern has to offer, and see how much you could save.