Hot Water Systems in Joslin
The 5070 postcode, covering Joslin, Glynde Dc, Felixstow, Firle, Glynde, Glynde Plaza, Marden, Payneham, Payneham South and Royston Park and surrounding areas, is home to around 7,022 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 Joslin and the 5070 area, 181 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 Joslin'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 5070
92nd
State Wide
1081st
Australia Wide
Hot Water Installation Joslin
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 Joslin
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterJoslin
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 Joslin
Compare heat pump hot water systems suitable for Joslin'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 - Joslin, 5070
Hot Water Demographics - Joslin
Based on the Australian Bureau of Statistics 2021 Census (ABS), Joslin has around 7,022 private dwellings, home to approximately 14,533 people. With an average household size of 2.2 people, and around 50 litres of hot water used per person each day in Australia, Joslin households use approximately 110 litres of hot water daily, equating to a massive 0.8 million litres of hot water used across the suburb every single day.
Other census insights reinforce Joslin's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Joslin community is home to 1,141 couple families with children and 238 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,805 homes owned with a mortgage and 2,058 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.
Joslin is converting hot water demand to efficient systems faster than many peers, with 2.6% of dwellings already upgraded.
Hot water systems in Joslin
Across Joslin and the wider 5070 area, more households are shifting from old gas and ageing electric units to modern, energy efficient hot water systems. With an average household size of around 2.2 people and more than 6,400 occupied dwellings, reliable hot water is essential, but so is keeping running costs down. Many local families are paying off mortgages on character homes and townhouses, so upgrading to a smarter hot water system is a logical way to trim bills without sacrificing comfort.
Joslin’s strong sunshine makes it ideal for efficient hot water. The nearby Stepney weather station records mean daily solar exposure of about 17.2 MJ/m², which is roughly 4.8 kWh per square metre per day over the year. That level of solar energy supports both a solar hot water system and a heat pump hot water system, especially when paired with rooftop solar. When you replace an older gas unit or resistive electric hot water system with a modern heat pump hot water installation or solar hot water installation, annual hot water energy savings can easily reach hundreds of dollars for a typical Joslin household.
In a suburb where more than 2,000 homes are owned outright and another 1,800 are mortgaged, long term energy savings really matter. Hot water can account for up to a quarter of home energy use, so choosing the most efficient hot water system you can is one of the biggest levers for reducing bills. Locals comparing heat pump vs solar hot water, or solar hot water vs electric hot water, are usually weighing up roof space, budget and whether they already have solar power.
To give a sense of potential savings, here are realistic average annual bill reductions when you upgrade your hot water system:
• Old electric to a quality heat pump hot water system: $450–$800 per year • Gas storage to heat pump hot water: $300–$600 per year • Gas storage to a solar hot water heating system: $250–$550 per year • Old electric to a modern electric hot water system run mostly on solar: $300–$700 per year
Brands like Rheem heat pump hot water and Rheem solar hot water are common choices in Joslin for dependable performance, while Sanden heat pump systems are popular at the premium end for those chasing the most energy efficient hot water system. Rinnai solar hot water and Chromagen solar hot water options also appear regularly on local quotes, especially where homeowners want a robust solar hot water tank replacement to pair with existing PV.
Efficient hot water is not just a theory here. In the 5070 postcode there have already been 181 efficient hot water installations, combining heat pump and solar hot water systems. Installations climbed steadily through the late 2000s, with a noticeable peak around 2009–2011 when solar hot water rebate programs were particularly strong. While yearly numbers have been smaller more recently, the ongoing stream of installations through to 2025 shows a steady local interest in electrification, lower running costs and moving towards the best hot water system Australia can offer for suburban homes.
Hot Water Rebates, Tariffs & Savings
Homeowners in Joslin are increasingly replacing old gas or tired electric units with either a heat pump hot water system, a modern electric hot water system or a solar hot water system. The upfront hot water system price can be a hurdle, but federal and state incentives help. The Australian Government’s Small-scale Technology Certificates (STCs) effectively act as a point-of-sale solar hot water rebate or heat pump hot water rebate, reducing the solar hot water price or heat pump hot water price by a substantial amount. South Australian schemes can also provide extra support for efficient electric hot water installation and heat pump hot water installation, and there are often specific electric hot water system rebate offers when you shift away from gas. Between the rebates and using timers or solar diversion to run your system when your PV is producing, many Joslin households can cut payback periods to just a few years and save hundreds of dollars a year on bills. When you factor in the long term hot water system cost, an energy efficient hot water system quickly pays for itself.
If you live in Joslin, SA and your current unit is older gas or a basic electric cylinder, now is a smart time to explore an upgrade. Whether you’re weighing up electric hot water vs gas hot water, heat pump vs solar hot water, or simply need fast hot water repair or solar hot water repair, working with experienced local installers is essential. With Joslin’s strong solar resource and growing interest in sustainability, efficient hot water systems can reduce bills, cut emissions and future proof your home. To understand the true solar hot water cost, hot water rebate sa options and which is the best heat pump hot water system for your property, connect with trusted local experts for personalised advice and hot water installation support with us.