Hot Water Systems in Sullivan
The 5607 postcode, covering Sullivan, Tulka North, Boston, Brooker, Charlton Gully, Coffin Bay, Coomunga, 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, 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 Sullivan 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 Sullivan'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 5607
107th
State Wide
1174th
Australia Wide
Hot Water Installation Sullivan
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 Sullivan
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterSullivan
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 Sullivan
Compare heat pump hot water systems suitable for Sullivan'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 - Sullivan, 5607
Hot Water Demographics - Sullivan
Based on the Australian Bureau of Statistics 2021 Census (ABS), Sullivan 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, Sullivan 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 Sullivan's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Sullivan 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.
Sullivan is converting hot water demand to efficient systems faster than many peers, with 5.6% of dwellings already upgraded.
Hot water systems in Sullivan
Across Sullivan and the wider 5607 area, more households are rethinking their hot water system and moving away from old, power‑hungry gas and electric units. With energy prices rising and many locals focused on keeping mortgage and rent costs manageable, efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system are becoming the smart next step. The average household size here is around 2.5 people, with a lot of separate houses and families, so reliable, affordable hot water is a big deal.
Sullivan is well placed for efficient hot water upgrades. The local climate enjoys strong sunshine, with mean daily solar exposure around 17.1 MJ/m² – roughly 4.75 kWh per square metre per day – which is ideal for a solar hot water heating system or a high‑efficiency heat pump. Many homes are owned outright or with a mortgage, so investing in the best hot water system Australia can offer is a logical way to cut running costs for years. Swapping an older gas or electric hot water system for an energy efficient hot water system can deliver substantial Annual Hot Water Energy Savings, especially when paired with rooftop solar.
Around Sullivan, most dwellings are three‑ and four‑bedroom homes, so daily hot water demand is solid. A well‑sized heat pump hot water installation or solar hot water installation can cover showers, laundry and kitchen use while slashing electricity use compared with a basic storage heater. Typical average annual bill savings look like this:
• Old electric to heat pump hot water system: $350–$700 per year • Gas to heat pump hot water: $250–$600 per year • Gas to solar hot water system: $200–$550 per year • Old electric to modern electric hot water installation with solar: $200–$450 per year
Brands like Rheem and Rinnai are popular locally for both efficient electric and solar hot water, with options such as Rheem solar hot water and Rinnai solar hot water well suited to Sullivan’s strong sun. For those chasing the most efficient hot water system possible, premium heat pumps like Sanden heat pump units or advanced Rheem heat pump hot water systems offer very low running costs and quiet operation. These sit alongside other quality options from Solahart and similar suppliers, giving homeowners plenty of choice when comparing heat pump vs solar hot water or solar hot water vs electric hot water.
Recent install data shows this shift is already under way. There have been 152 efficient hot water installations (mainly heat pump and solar) recorded in the 5607 postcode, with peak years around 2009–2010 when installations hit the mid‑teens annually. While numbers have eased in recent years, there are still new systems going in every year, reflecting steady interest in electrification, lower running costs and cleaner hot water SA wide. Each new system adds to community hot water energy savings and helps future‑proof local homes.
Hot Water Rebates, Tariffs & Savings
More Sullivan homeowners are now replacing tired gas or electric units with efficient alternatives, helped by generous hot water rebate SA programs. At a national level, the Federal Government’s Small‑scale Technology Certificates (STCs) reduce the upfront solar hot water price / cost and heat pump hot water price / cost. On top of that, South Australian schemes can offer a heat pump hot water rebate, solar hot water rebate and even an electric hot water system rebate in some cases, especially when switching away from gas. These discounts can cut the effective hot water system price / cost by a substantial percentage, often shaving thousands off a quality rheem solar hot water or chromagen solar hot water setup.
For many Sullivan households, the combination of rebates and smart tariffs means payback periods can drop to just a few years, particularly if you run your heat pump during the day on solar. Using timers or solar‑diversion controls allows a modern solar hot water tank replacement or best heat pump hot water system to soak up excess rooftop generation, making it a truly energy efficient hot water system. Over time, it is common to save hundreds of dollars per year on bills, while cutting emissions and reducing reliance on bottled or mains gas.
If you live in Sullivan and your existing unit is old, noisy or unreliable, it is a great time to check whether a hot water upgrade could work for you. Whether you are weighing up electric hot water vs gas hot water, comparing heat pump vs solar hot water, or simply want the most efficient hot water system your budget allows, talking to experienced local hot water SA installers is the best first step. With strong solar exposure, a community already investing in efficient hot water systems and attractive hot water rebate SA incentives, Sullivan homes are well placed to reduce bills, cut emissions and future‑proof their hot water. Connect with trusted local experts for tailored hot water installation and hot water repair advice, including solar hot water repair and solar hot water tank replacement options, and find the right solution for your home or business.