Hot Water Systems in Duffy
The 2611 postcode, covering Duffy, Coree, Stromlo, Whitlam, Bimberi, Brindabella, Chapman, Cooleman, Coombs, Denman Prospect, Fisher, Holder, Mount Stromlo, Pierces Creek, Rivett, Stirling, Uriarra, Uriarra Forest, Uriarra Village, Waramanga, Weston, Weston Creek and Wright and surrounding areas, is home to around 14,246 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 Duffy and the 2611 area, 1,283 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 Duffy'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 2611
2nd
State Wide
212nd
Australia Wide
Hot Water Installation Duffy
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 Duffy
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterDuffy
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 Duffy
Compare heat pump hot water systems suitable for Duffy'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 - Duffy, 2611
Hot Water Demographics - Duffy
Based on the Australian Bureau of Statistics 2021 Census (ABS), Duffy has around 14,246 private dwellings, home to approximately 34,809 people. With an average household size of 2.6 people, and around 50 litres of hot water used per person each day in Australia, Duffy households use approximately 130 litres of hot water daily, equating to a massive 1.9 million litres of hot water used across the suburb every single day.
Other census insights reinforce Duffy's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Duffy community is home to 3,716 couple families with children and 700 one-parent families, meaning a large proportion of households face substantial hot water demand. With 6,367 homes owned with a mortgage and 3,806 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.
Duffy is converting hot water demand to efficient systems faster than many peers, with 9.0% of dwellings already upgraded.
Hot water systems in Duffy
Across Duffy and the wider 2611 area, more households are shifting from old gas and ageing electric units to modern, energy efficient hot water options. With an average household size of around 2.6 people and more than 13,000 dwellings in the postcode, hot water is a big slice of local energy use. Many homes are owned with a mortgage or outright, so upgrading a hot water system is a logical next step to cut bills and future proof the property.
Duffy is well suited to efficient hot water. The nearby Stromlo Forest weather station records an average of about 17.2 MJ/m² of solar exposure a day – roughly 4.8 kWh/m² – which is strong support for both a solar hot water system and a heat pump hot water system. With good sun on the roof, a solar hot water heating system can do most of the heavy lifting, while a heat pump hot water installation can use off peak or solar power to deliver reliable hot water with far less electricity than an old resistive electric hot water system. For many families, shifting from gas or an older electric unit can deliver substantial annual hot water energy savings.
In 2611, there is a mix of established separate houses and townhouses, plus a solid number of units, so hot water demand varies. Families with kids and larger four bedroom homes naturally use more hot water than downsizers or couples, and the hot water system price or cost will vary with tank size and technology. Local installers commonly work with brands like Rheem, Rinnai, Sanden and Thermann, offering everything from rheem solar hot water and rinnai solar hot water through to rheem heat pump hot water and premium options like a sanden heat pump for households chasing the most efficient hot water system on the market.
When you look at heat pump vs solar hot water, both can be part of an energy efficient hot water system strategy. A solar hot water vs electric hot water comparison usually shows strong savings if you have decent roof space, while electric hot water vs gas hot water increasingly comes out in favour of efficient electric, especially if you already have rooftop solar. For some homes, a modern electric hot water installation paired with solar and a smart timer can rival a solar hot water system for running costs.
Recent data shows 1,283 efficient hot water systems – mainly heat pumps and solar – have already been installed across the 2611 postcode. Installations ramped up sharply around 2014–2016, with a peak of 244 systems in 2015, and steady activity continuing through to 2025. This trend reflects growing local interest in electrification, lower running costs and cutting emissions. As systems age, there is also regular demand for solar hot water repair, solar hot water tank replacement and general hot water repair to keep units running efficiently.
Typical savings from a hot water upgrade in Duffy are meaningful. Depending on your starting point and usage, you might see average annual bill reductions along these lines:
• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water system: $300–$600 per year • Gas to solar hot water system: $250–$550 per year • Old electric to modern electric hot water system with solar: $250–$500 per year
Of course, exact heat pump hot water price or cost, and solar hot water price or cost, will depend on the brand, size and complexity of the hot water installation. But when you factor in rebates, the best heat pump hot water system or best hot water system Australia for your situation can often pay back surprisingly quickly.
Hot Water Rebates, Tariffs & Savings
Around Duffy, more homeowners are replacing old gas or electric units with efficient options like heat pump hot water, upgraded electric hot water systems or a solar hot water heating system. Australian Government Small scale Technology Certificates (STCs) apply to eligible systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate by discounting the purchase price. In the ACT, there may also be additional state based support or an electric hot water system rebate available from time to time. Together, these hot water rebate ACT incentives can reduce system cost by a substantial percentage and trim the payback period to just a few years, especially if you also have solar.
For many Duffy households, a well designed energy efficient hot water system can save hundreds of dollars a year. Using timers or solar diversion controls to run a heat pump during the middle of the day can push savings even further. That is why more locals are asking about hot water ACT tariffs, off peak rates and how to get the most from their rooftop solar when planning a heat pump hot water installation or solar hot water installation.
If your current unit is more than 10 years old, running out of hot water or costing a fortune to run, it is a good time to look at a hot water upgrade. Whether you are comparing solar hot water vs electric hot water, weighing up heat pump vs solar hot water, or simply want the most efficient hot water system for an all electric home, experienced local installers can help. In Duffy, interest in sustainability and lower energy bills is only growing, and choosing the right hot water system can reduce bills, cut emissions and future proof your home. To find out which option suits your household, connect with trusted local hot water specialists for personalised advice and a clear quote today.