Hot Water Systems in Coolillie
The 5670 postcode, covering Coolillie, Bramfield, Colton, Elliston, Kappawanta, Mount Joy, Mount Wedge, Palkagee, Polda, Talia and Ulyerra and surrounding areas, is home to around 289 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 Coolillie and the 5670 area, 13 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 Coolillie's climate delivering an average of 5.0 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 5670
274th
State Wide
2269th
Australia Wide
Hot Water Installation Coolillie
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 Coolillie
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCoolillie
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 Coolillie
Compare heat pump hot water systems suitable for Coolillie'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 - Coolillie, 5670
Hot Water Demographics - Coolillie
Based on the Australian Bureau of Statistics 2021 Census (ABS), Coolillie has around 289 private dwellings, home to approximately 417 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Coolillie households use approximately 115 litres of hot water daily, equating to a massive 0.0 million litres of hot water used across the suburb every single day.
Other census insights reinforce Coolillie's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Coolillie community is home to 39 couple families with children and 9 one-parent families, meaning a large proportion of households face substantial hot water demand. With 50 homes owned with a mortgage and 101 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.
Coolillie is converting hot water demand to efficient systems faster than many peers, with 4.5% of dwellings already upgraded.
Hot water systems in Coolillie
Across Coolillie and the wider 5670 area, more households are shifting from old gas and ageing electric units to modern, energy efficient hot water systems. With most homes here being separate houses and an average household size of around 2.3 people, a well‑sized hot water system can make a real difference to comfort and bills. Many households are managing mortgages of about $1,083 a month, so trimming running costs without sacrificing reliability is a smart move.
Coolillie is well placed for efficient hot water upgrades. The local solar exposure at Gum View averages about 18.1 MJ/m² per day, which is roughly 5 kWh/m² of sunshine daily over the year. That strong sunlight supports both a solar hot water system and a heat pump hot water system, especially when paired with rooftop solar. For many homes, upgrading from an older gas or electric hot water system to a modern heat pump or solar hot water heating system can cut hot water energy use by more than half, delivering substantial Annual Hot Water Energy Savings.
In a small community of around 189 occupied dwellings, with more than half owned outright or with a mortgage, there is solid potential for long‑term investments like a quality hot water installation. Families and older residents alike benefit from stable, low‑maintenance systems that keep power bills predictable. Local demand is steadily moving towards the most efficient hot water system options, including smart electric hot water system setups that work with solar.
When it comes to system sizes and savings, most Coolillie homes fall into the 3–4 bedroom range, so a typical 250–315 litre heat pump hot water installation or solar hot water installation suits well. Hot water energy use can be a big slice of total household consumption, so the upgrade choice matters. Brands such as Rheem heat pump hot water, Rheem solar hot water, Rinnai solar hot water and Sanden heat pump units are popular across regional SA, offering reliable, energy efficient hot water system options for both homes and small businesses. Many locals compare heat pump vs solar hot water, as well as solar hot water vs electric hot water, to decide what best fits their roof, budget and lifestyle.
Typical annual bill savings for Coolillie homes can look like:
• Old electric to heat pump hot water system: save roughly $350–$700 per year. • Gas to heat pump hot water system: 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 with solar: save roughly $250–$500 per year.
In the 5670 postcode there have been 13 efficient hot water systems installed so far, combining both heat pump and solar hot water systems. Installations peaked in the early 2000s, with four systems installed in 2003 and two in 2004, followed by steady one‑off installs in 2008, 2009, 2010, 2011, 2017 and 2021. While numbers are modest, they show growing local interest in electrification, lower running costs and cleaner hot water SA wide, particularly as more residents install solar PV and look to get off gas.
For many households, questions around hot water system price / cost, heat pump hot water price / cost and solar hot water price / cost are front of mind. The good news is that several Australian Federal and SA state incentives can help. Small‑scale Technology Certificates (STCs) effectively act like a solar hot water rebate or heat pump hot water rebate, reducing the upfront cost of eligible systems. South Australian programs have also supported efficient electric hot water system rebate offers at times, making options like the best heat pump hot water system or a quality solar hot water tank replacement more affordable.
These hot water rebate SA incentives can cut the effective system cost by a significant percentage, and when combined with rooftop solar and timers or solar‑diversion, payback periods can shrink to just a few years. Many Coolillie homeowners see savings of hundreds of dollars a year after moving to an energy efficient hot water system, especially when replacing older gas hot water. For those comparing electric hot water vs gas hot water, running costs plus future gas price risk are key reasons people are moving to all‑electric homes.
Whether you are considering Rheem solar hot water, Rinnai solar hot water, a Sanden heat pump or another of the best hot water system Australia options, it pays to get local advice on sizing, tariffs, hot water repair, solar hot water repair and long‑term reliability.
If your hot water system is ageing, noisy or costly to run, now is a good time to see if your Coolillie home is ready for a hot water upgrade. Talk with experienced hot water installers like us who specialise in heat pump hot water installation, solar hot water installation and efficient electric hot water installation. With Coolillie’s strong solar resource and growing focus on sustainability, an efficient hot water system can help cut bills, reduce emissions and future‑proof your home—connect with trusted local experts for personalised advice today.