Hot Water in Illawarra, VIC

Hot Water Systems in Illawarra

The 3381 postcode, covering Illawarra, Barkly, Bellellen, Bellfield, Black Range, Bolangum, Callawadda, Campbells Bridge, Concongella, Deep Lead, Fyans Creek, Germania, Greens Creek, Halls Gap, Joel Joel, Joel South, Kanya, Lake Fyans, Lake Lonsdale, Lubeck, Mokepilly, Morrl Morrl, Mount Dryden, Paradise, Pomonal, Rostron, Wal Wal, Wallaloo and Wallaloo East and surrounding areas, is home to around 777 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 Illawarra and the 3381 area, 102 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 Illawarra'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.

Icon

Hot Water Ranking

Postcode 3381

376th

State Wide

1403rd

Australia Wide

Hot Water Installation Illawarra

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 Illawarra

* Data from the Bureau of Meteorology. Closest station: N/A.

Solar Powered Hot WaterIllawarra

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.

Financial Ad Icon

Want Solar Finance Options?

Compare lenders and get tailored loan offers.

Heat Pump Hot Water Systems for Illawarra

Compare heat pump hot water systems suitable for Illawarra'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 - Illawarra, 3381

Icon

Hot Water Demographics - Illawarra

Based on the Australian Bureau of Statistics 2021 Census (ABS), Illawarra has around 777 private dwellings, home to approximately 1,134 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Illawarra households use approximately 115 litres of hot water daily, equating to a massive 0.1 million litres of hot water used across the suburb every single day.

Other census insights reinforce Illawarra's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Illawarra community is home to 81 couple families with children and 19 one-parent families, meaning a large proportion of households face substantial hot water demand. With 152 homes owned with a mortgage and 231 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.

Illawarra is converting hot water demand to efficient systems faster than many peers, with 13.1% of dwellings already upgraded.

Icon

Hot water systems in Illawarra

In Illawarra, VIC 3381, more locals are rethinking their hot water system and moving to energy efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With around 490 occupied dwellings, an average household size of 2.3 people and many families and retirees, reliable and affordable hot water is essential. Rising energy costs mean upgrading from older gas or electric units to an energy efficient hot water system is a logical next step.

Illawarra’s climate helps. The nearby Stawell Aerodrome records mean daily solar exposure of about 16.7 MJ/m², which is roughly 4.6 kWh of solar energy per square metre per day. That strong sunlight supports both heat pump hot water and any solar hot water heating system, especially for homes already running rooftop solar. With a median total household income of $1,472 a week and a large number of homes owned outright or with a mortgage, many households are in a good position to invest in upgrades that can lock in lower running costs for years.

Across the 3381 postcode, there have already been 102 efficient hot water installations, mostly heat pump hot water installation and solar hot water installation. In a community where three bedroom homes are common and hot water demand is steady but not extreme, these systems can cut hot water energy use dramatically compared with old storage electric or gas units. For many homes, hot water is one of the biggest single energy loads, so improving efficiency makes a noticeable dent in bills.

Typical annual bill savings in Illawarra look like this:

• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water: $300–$600 per year • Gas to solar hot water system: $250–$550 per year • Old electric to modern electric hot water installation with good solar: $200–$450 per year

Brands like Rheem heat pump hot water and Rheem solar hot water are popular for their reliability, while Rinnai solar hot water and Sanden heat pump units are often chosen by households chasing the most efficient hot water system and very low running costs. Many locals also look at Chromagen solar hot water and other options when comparing the best hot water system Australia wide. Your ideal choice will depend on budget, roof space, existing solar and whether you want to go all electric and move away from gas hot water entirely.

Looking at the installation history tells the story. From 2003 to 2007, Illawarra saw only a handful of efficient hot water installations each year. Then, in 2008 and 2009, installations jumped to 20 and 14 systems as solar hot water vs electric hot water became a hot topic and rebates improved. Since then, there has been a steady trickle of installs most years, with renewed interest from 2018 onwards. The 102 total installations show a clear trend toward electrification, lower running costs and more sustainable hot water VIC wide, even in smaller rural communities.

Hot Water Rebates, Tariffs & Savings

Across Illawarra, more households are now looking to replace old gas or electric hot water with a heat pump hot water system, efficient electric hot water or a solar hot water heating system. Federal incentives like Small-scale Technology Certificates (STCs) can lower the solar hot water price / cost and heat pump hot water price / cost, while Victorian hot water rebate VIC programmes offer extra support for eligible homes. Together, these incentives can effectively cut the upfront hot water system price / cost by a substantial percentage, especially when you combine a hot water rebate vic with smart tariffs and rooftop solar.

For many Illawarra homes, moving to the best heat pump hot water system or a quality solar hot water system can save hundreds of dollars per year and shorten payback times to just a few years. Using timers or solar diversion to run an electric hot water system when your solar is producing can boost savings further. When you compare heat pump vs solar hot water, or solar hot water vs electric hot water, it often comes down to roof space, budget, and whether you want near‑silent operation or maximum use of your solar. Electric hot water vs gas hot water is also shifting in favour of electric as gas prices rise and more people want to cut emissions.

Whether you need hot water installation for a new build, a solar hot water tank replacement, hot water repair, solar hot water repair or a full electric hot water installation, it pays to get local advice. Illawarra’s strong solar resource and growing interest in sustainability make it a great place to upgrade to energy efficient hot water. If you are wondering which option is the best hot water system Australia can offer for your home, now is a good time to check whether your existing unit is due for replacement and to explore heat pump hot water rebate and solar hot water rebate options.

If your current system is old, noisy or expensive to run, consider whether a heat pump hot water installation, solar hot water installation or modern electric hot water system rebate backed upgrade could suit your Illawarra home. Working with experienced hot water installers like us means you get tailored advice on brands such as Rheem, Rinnai, Sanden and Chromagen, clear guidance on hot water rebate vic options, and a system sized to your family’s needs. With Illawarra’s strong solar exposure and growing focus on energy efficiency, an upgrade can reduce your bills, cut emissions and future‑proof your home—connect with our trusted local experts for personalised advice today.

Nearby Suburbs

See Also