Hot Water Systems in Dundas
The 2117 postcode, covering Dundas, Dundas Valley, Oatlands and Telopea and surrounding areas, is home to around 8,264 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 Dundas and the 2117 area, 314 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 Dundas's climate delivering an average of 4.5 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 2117
182nd
State Wide
789th
Australia Wide
Hot Water Installation Dundas
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 Dundas
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterDundas
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 Dundas
Compare heat pump hot water systems suitable for Dundas'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 - Dundas, 2117
Hot Water Demographics - Dundas
Based on the Australian Bureau of Statistics 2021 Census (ABS), Dundas has around 8,264 private dwellings, home to approximately 20,946 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Dundas households use approximately 140 litres of hot water daily, equating to a massive 1.2 million litres of hot water used across the suburb every single day.
Other census insights reinforce Dundas's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Dundas community is home to 1,989 couple families with children and 359 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,613 homes owned with a mortgage and 2,000 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.
Dundas is converting hot water demand to efficient systems faster than many peers, with 3.8% of dwellings already upgraded.
Hot water systems in Dundas
Across Dundas, more households are switching to energy efficient hot water systems to cut bills and move away from ageing gas units. With an average household size of 2.8 people and more than 7,500 dwellings in the 2117 area, reliable hot water is non‑negotiable. Power prices keep climbing, so upgrading your hot water system is a simple, high‑impact way to reduce running costs. Local solar exposure averages about 16.2 MJ/m² per day (around 4.5 kWh/m²), which is strong enough to make a solar hot water system or heat pump hot water system perform very well on Dundas roofs and balconies.
Dundas has a good mix of separate houses (over 4,000) and townhouses or villas, plus close to 1,000 flats and apartments. With more than 4,600 homes either owned outright or with a mortgage, plenty of families are in a position to invest in an energy efficient hot water system that pays for itself over time. Swapping an old gas or electric hot water system for a modern heat pump hot water system, solar hot water heating system or efficient electric hot water system can deliver substantial Annual Hot Water Energy Savings for typical Dundas households.
For most three‑ to four‑bedroom homes in 2117, a 250–315 litre heat pump hot water installation or a similar size solar hot water tank replacement is common, while smaller townhouses and units might suit a 160–250 litre unit. Hot water can account for 20–30% of household energy use, so it is no surprise that Dundas families are looking closely at options like heat pump vs solar hot water and solar hot water vs electric hot water when planning their next hot water installation. Brands such as Rheem heat pump hot water, Rheem solar hot water, Rinnai solar hot water and Sanden heat pump units are popular choices for those chasing the most efficient hot water system and long warranties, while Chromagen solar hot water and other quality brands also have a presence in the local market.
Typical annual bill savings in Dundas look like this: • Old electric to heat pump hot water system: $400–$900 per year • Gas to heat pump hot water system: $300–$700 per year • Gas to solar hot water system: $250–$600 per year • Old electric to modern electric hot water installation with rooftop solar: $250–$500 per year
In total, around 314 efficient hot water systems (heat pumps and solar) have already been installed in the 2117 postcode. Installations in Dundas really took off around 2008–2010, peaking in 2009 with 78 systems, then settling into a steady trickle each year through the 2010s and early 2020s. This trend shows a clear local interest in electrification, lower running costs and cleaner hot water nsw options, especially as more homes add solar and look to get off gas.
Hot Water Rebates, Tariffs & Savings
Right now there is strong interest in Dundas in replacing old gas or resistive electric hot water with efficient alternatives. Homeowners are weighing up electric hot water vs gas hot water, considering the best heat pump hot water system for their family, and comparing heat pump vs solar hot water to see what works best with their roof space and budget. The Australian Government offers Small‑scale Technology Certificates (STCs) that effectively act as an upfront discount on eligible heat pump and solar hot water systems. On top of that, NSW hot water rebate programs can provide a heat pump hot water rebate or solar hot water rebate for qualifying households, and in some cases an electric hot water system rebate when moving off gas.
These incentives can reduce the effective hot water system price or solar hot water price / cost and heat pump hot water price / cost by a substantial percentage, often cutting thousands off the installed cost. When you combine rebates with rooftop solar and smart timers or solar‑diversion controls, payback periods can shrink to just a few years, while ongoing hot water repair and maintenance costs also tend to fall thanks to modern, reliable units. Many Dundas homes are now using their daytime solar to power an energy efficient hot water system, turning excess generation into free showers instead of exporting it for a low feed‑in tariff.
If you are in Dundas and your current unit is old, noisy or struggling, it is a good time to check whether a heat pump hot water installation, solar hot water installation or efficient electric hot water installation is right for you. With growing interest in sustainability and strong solar levels in the area, upgrading to one of the best hot water system Australia options can reduce bills, cut emissions and future‑proof your home. Talk with experienced local specialists in hot water repair, solar hot water repair and installation to compare systems, understand the true hot water system price / cost after rebates, and tap into the latest hot water rebate nsw programs. Connect with trusted Dundas experts for personalised advice and a smooth, compliant upgrade that keeps your showers hot and your energy bills under control.