Hot Water Systems in Coomunga
The 5607 postcode, covering Coomunga, Tulka North, Boston, Brooker, Charlton Gully, Coffin Bay, Coulta, Duck Ponds, Farm Beach, Fountain, Green Patch, Hawson, Horse Peninsula, Karkoo, Kellidie Bay, Kiana, Koppio, Lincoln National Park, Lipson, Little Douglas, Louth Bay, Mitchell, Moody, Mount Drummond, Mount Dutton Bay, Mount Hope, Murdinga, North Shields, Peachna, Pearlah, Point Boston, Poonindie, Port Lincoln, Sheringa, Sleaford, Sullivan, Tiatukia, Tooligie, Tootenilla, Tulka, Uley, Ungarra, Venus Bay, Wangary, Wanilla, Warrachie, Warrow, Warunda, Whites Flat, Whites River and Yallunda Flat and surrounding areas, is home to around 2,732 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 Coomunga and the 5607 area, 152 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 Coomunga's climate delivering an average of 4.7 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 5607
107th
State Wide
1174th
Australia Wide
Hot Water Installation Coomunga
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 Coomunga
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCoomunga
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 Coomunga
Compare heat pump hot water systems suitable for Coomunga'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 - Coomunga, 5607
Hot Water Demographics - Coomunga
Based on the Australian Bureau of Statistics 2021 Census (ABS), Coomunga has around 2,732 private dwellings, home to approximately 4,640 people. With an average household size of 2.5 people, and around 50 litres of hot water used per person each day in Australia, Coomunga households use approximately 125 litres of hot water daily, equating to a massive 0.3 million litres of hot water used across the suburb every single day.
Other census insights reinforce Coomunga's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Coomunga community is home to 461 couple families with children and 62 one-parent families, meaning a large proportion of households face substantial hot water demand. With 719 homes owned with a mortgage and 796 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.
Coomunga is converting hot water demand to efficient systems faster than many peers, with 5.6% of dwellings already upgraded.
Hot water systems in Coomunga
Around Coomunga and the wider 5607 area, more households are quietly upgrading to an energy efficient hot water system. With so many separate houses, bigger blocks and an average household size of about 2.5 people, hot water demand is steady all year round. Power bills bite too, even with a median household income around $1,500 a week, so replacing an old gas or electric unit with a modern heat pump hot water system, solar hot water system or efficient electric hot water system is becoming the logical next step.
Coomunga’s climate helps. The local weather station at Big Swamp records an average solar exposure of about 16.9 MJ/m² per day – roughly 4.7 kWh/m²/day – which is excellent for both a solar hot water heating system and for helping a heat pump run efficiently. For many owner‑occupiers (there are well over 1,500 owned homes in the postcode), that means real, ongoing savings when you move away from a hungry old storage tank. A modern hot water installation can cut the hot water share of your electricity use dramatically, and Annual Hot Water Energy Savings can easily reach hundreds of dollars a year for a typical family.
In 5607 there are plenty of three and four‑bedroom homes, so a correctly sized hot water system is important – big enough for showers, laundry and dishes, but not so big that you are paying to heat water you never use. Local installers are seeing more interest in pairing a heat pump hot water installation with rooftop solar, and in choosing brands known for reliability in regional conditions, such as Rheem heat pump hot water systems, Sanden heat pump units and Chromagen solar hot water packages. For some properties, a rheem solar hot water or chromagen solar hot water setup on the roof with a well‑insulated solar hot water tank replacement is the most efficient hot water system; for others, a quiet, high‑efficiency Sanden heat pump is the best heat pump hot water system for year‑round performance.
Typical bill savings in Coomunga look like this:
• Old electric to heat pump hot water system: save roughly $350–$700 per year. • Gas to heat pump: save around $250–$600 per year. • Gas to solar hot water system: save about $300–$650 per year. • Old electric to modern electric hot water installation powered by solar: save roughly $250–$500 per year.
Recent efficient hot water installations in Coomunga tell the story. There have been 152 efficient hot water systems installed in the postcode, combining heat pump and solar hot water installation jobs. Installations built steadily through the 2000s, peaking around 2009–2010 with more than 30 systems in just two years, then continuing at a modest but consistent pace. Even in the last few years, new systems have gone in every year, reflecting a growing interest in electrification, lower running costs and moving towards the best hot water system Australia can offer for regional homes. As more locals add solar PV, questions like heat pump vs solar hot water and solar hot water vs electric hot water are becoming common, and so is demand for prompt hot water repair and solar hot water repair when older units finally give up.
Hot Water Rebates, Tariffs & Savings
Across Coomunga and the Eyre Peninsula, more people are looking to replace old gas or electric units with an energy efficient hot water system – whether that is a heat pump, a high‑efficiency electric hot water system with a timer, or a roof‑mounted solar hot water heating system. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible solar and heat pump systems, effectively acting as an upfront discount. On top of that, South Australian hot water rebate programs for heat pumps and efficient electric hot water can further reduce the heat pump hot water price or cost and the solar hot water price or cost. A combined solar hot water rebate, heat pump hot water rebate or electric hot water system rebate can knock a substantial percentage off the hot water system price, cutting payback times to just a few years in some cases.
For many Coomunga households, shifting to hot water SA‑style – all‑electric with smart tariffs – and using timers or solar diversion means you heat most of your water on cheap or free solar power. That can turn a modern heat pump into the most efficient hot water system on the market for your situation, and makes solar hot water vs electric hot water a question of what best matches your roof, budget and usage.
If your current unit is getting old, running out of hot water or costing too much, now is a good time to see if your Coomunga home is ready for a hot water upgrade. Whether you are switching from gas to a heat pump, comparing heat pump vs solar hot water, or planning a solar hot water tank replacement, working with experienced local hot water installers and repair specialists in Coomunga makes all the difference. With strong solar, solid home ownership and growing interest in sustainability, efficient hot water systems can help you reduce bills, cut emissions and future‑proof your home. Connect with trusted local experts for personalised advice and find the right hot water rebate SA options and system design for your place.