Hot Water Systems in Longwood
The 5153 postcode, covering Longwood, Biggs Flat, Bradbury, Chapel Hill, Echunga, Flaxley, Green Hills Range, Heathfield, Ironbank, Jupiter Creek, Macclesfield, Mylor and Scott Creek and surrounding areas, is home to around 2,610 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 Longwood and the 5153 area, 399 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 Longwood's climate delivering an average of 4.6 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 5153
25th
State Wide
678th
Australia Wide
Hot Water Installation Longwood
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 Longwood
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterLongwood
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 Longwood
Compare heat pump hot water systems suitable for Longwood'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 - Longwood, 5153
Hot Water Demographics - Longwood
Based on the Australian Bureau of Statistics 2021 Census (ABS), Longwood has around 2,610 private dwellings, home to approximately 6,215 people. With an average household size of 2.7 people, and around 50 litres of hot water used per person each day in Australia, Longwood households use approximately 135 litres of hot water daily, equating to a massive 0.4 million litres of hot water used across the suburb every single day.
Other census insights reinforce Longwood's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Longwood community is home to 530 couple families with children and 76 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,134 homes owned with a mortgage and 975 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.
Longwood is converting hot water demand to efficient systems faster than many peers, with 15.3% of dwellings already upgraded.
Hot water systems in Longwood
Across Longwood and the 5153 hills postcode, more homeowners are rethinking their old gas and electric hot water system and moving to energy efficient options. With mostly separate houses, an average household size of 2.7 people and a median household income over $2,000 a week, many local families are in a good position to upgrade to a modern heat pump hot water system, solar hot water system or efficient electric hot water system that keeps bills down without sacrificing comfort.
Longwood’s solar exposure is a real asset. The local weather station records an average of about 16.7 MJ/m² of sunshine a day over the year, which is roughly 4.6 kWh/m²/day. That level of sunlight is ideal for a solar hot water heating system and supports high performance from a quality heat pump hot water system as well. With more than 2,300 occupied dwellings across 5153 and many owned outright or with a mortgage, swapping an older gas unit for an energy efficient hot water system is a logical next step for cutting running costs. Over a year, a well‑chosen upgrade can deliver substantial Annual Hot Water Energy Savings for typical Longwood households.
In the 5153 area, hot water demand is driven by family homes, many with three or four bedrooms. Hot water energy use can easily make up a quarter of total household electricity, so the choice of system really matters. Locally, we see a mix of older electric and gas storage units alongside newer solar and heat pump systems. Brands like Rheem heat pump hot water, Rheem solar hot water, Rinnai solar hot water and premium Sanden heat pump units are popular with households wanting the most efficient hot water system they can afford, while Chromagen solar hot water is a common choice for roof‑mounted solar hot water installation and solar hot water tank replacement.
Typical savings for Longwood homes switching to efficient hot water look like this:
• Old electric to heat pump hot water installation: save around $300–$700 a year on bills. • Gas to heat pump vs solar hot water: either option can trim $250–$600 a year, depending on usage. • Gas to solar hot water system: often $200–$500 a year in savings. • Old electric to modern electric hot water installation paired with rooftop solar: $200–$450 a year, especially with timers or solar‑diversion controls.
Efficient hot water is not just theory here. In postcode 5153 there have already been 399 efficient hot water installations, combining heat pump and solar hot water systems. Installations peaked in the early 2000s, with strong years in 2003, 2004, 2005 and 2008, and there has been a steady trickle of systems going in right through to 2024. This ongoing pattern shows growing interest in electrification, lower running costs and replacing ageing gas units with the best hot water system Australia can offer for local conditions.
Hot Water Rebates, Tariffs & Savings
For Longwood households, the numbers stack up even better once rebates are factored in. Australian Government Small‑scale Technology Certificates (STCs) apply to eligible solar hot water systems and heat pump hot water systems, and can effectively cut the upfront solar hot water price / cost or heat pump hot water price / cost by a substantial percentage. On top of that, South Australian programmes often provide a heat pump hot water rebate or solar hot water rebate, and there may be support for moving to an efficient electric hot water system rebate when replacing gas. These incentives bring the hot water system price / cost down so the payback period on a hot water upgrade can shrink to just a few years, especially if you already have rooftop solar.
By combining rebates with smart use of off‑peak tariffs, timers or solar‑diversion, households in Longwood can realistically shave hundreds of dollars a year off bills. Whether you are weighing up heat pump vs solar hot water, comparing solar hot water vs electric hot water, or even considering electric hot water vs gas hot water, there are strong hot water rebate SA options and local tariffs that reward efficient choices.
If you are in Longwood and your current unit is getting old, now is a good time to check whether your home is ready for a hot water upgrade. Whether that means a rheem heat pump hot water system, rinnai solar hot water, a Sanden heat pump or another best heat pump hot water system option, working with experienced local specialists in hot water SA makes all the difference. With Longwood’s strong solar resource and growing interest in sustainability, an energy efficient hot water system can help you cut bills, reduce emissions and future‑proof your home. Talk with trusted local experts for tailored hot water installation and hot water repair advice, from solar hot water repair through to electric hot water system upgrades, and find the right hot water systems Longwood homes can rely on for years to come.