Hot Water Systems in Londonderry
The 2753 postcode, covering Londonderry, Agnes Banks, Bowen Mountain, Grose Vale, Grose Wold, Hobartville, Richmond, Richmond Lowlands and Yarramundi and surrounding areas, is home to around 6,408 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 Londonderry and the 2753 area, 608 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 Londonderry'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 2753
108th
State Wide
488th
Australia Wide
Hot Water Installation Londonderry
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 Londonderry
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterLondonderry
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 Londonderry
Compare heat pump hot water systems suitable for Londonderry'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 - Londonderry, 2753
Hot Water Demographics - Londonderry
Based on the Australian Bureau of Statistics 2021 Census (ABS), Londonderry has around 6,408 private dwellings, home to approximately 16,151 people. With an average household size of 2.7 people, and around 50 litres of hot water used per person each day in Australia, Londonderry households use approximately 135 litres of hot water daily, equating to a massive 0.9 million litres of hot water used across the suburb every single day.
Other census insights reinforce Londonderry's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Londonderry community is home to 1,261 couple families with children and 332 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,096 homes owned with a mortgage and 2,014 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.
Londonderry is converting hot water demand to efficient systems faster than many peers, with 9.5% of dwellings already upgraded.
Hot water systems in Londonderry
Across Londonderry, more locals are rethinking their old gas or electric hot water system and moving to energy‑efficient options like a heat pump hot water system, solar hot water system or modern electric hot water system. With an average household size of around 2.7 people and more than 6,000 dwellings in the 2753 area, hot water is a big chunk of the power bill for many families juggling mortgages of about $2,167 a month or weekly rents around $400. Upgrading to an energy efficient hot water system is a simple way to trim running costs without sacrificing comfort.
Londonderry is well suited to efficient hot water. The local Richmond solar data shows mean daily solar exposure of about 16.1 MJ/m², or roughly 4.5 kWh/m² per day across the year, which is strong support for both a solar hot water heating system and high‑efficiency heat pump hot water. For homeowners thinking about heat pump vs solar hot water, this level of sunshine means either option can perform well, especially when paired with rooftop solar. Many owner‑occupied homes in the area are separate houses with good roof space, so solar hot water installation or a heat pump hot water installation is usually straightforward, and Annual Hot Water Energy Savings can be significant when replacing an older gas unit.
In 2753, most homes are three‑ or four‑bedroom houses, so there is steady hot water demand from families and multigenerational households. That makes choosing the most efficient hot water system even more important. Brands like Rheem solar hot water and Rinnai solar hot water are popular for roof‑mounted or split‑system solar hot water installation, while Rheem heat pump hot water and premium options like a Sanden heat pump are common choices for those wanting the best heat pump hot water system with very low running costs. For some homes, a quality Chromagen solar hot water setup can be a good middle‑ground, especially when a solar hot water rebate is available to bring the solar hot water price / cost down.
Average annual bill savings will vary by home, but typical ranges in Londonderry look like this:
• Old electric to heat pump: around $350–$700 per year • Gas to heat pump: around $250–$600 per year • Gas to solar hot water: around $250–$550 per year • Old electric to modern electric with solar: around $200–$450 per year
These savings, plus lower solar hot water price / cost or heat pump hot water price / cost after incentives, are why more residents are asking about solar hot water vs electric hot water and electric hot water vs gas hot water when planning a hot water upgrade.
Recent efficient hot water installations in Londonderry show this trend clearly. There have been 608 efficient hot water systems installed in the postcode, combining heat pump and solar hot water systems. Installations ramped up sharply around 2009 and 2010, with 120 and 84 systems installed in those years, then continued steadily with additional systems added most years through to 2025. This ongoing pattern of hot water installation reflects growing local interest in electrification, lower running costs and cutting emissions, especially for households already investing in solar power and looking for an energy efficient hot water system to match.
Hot Water Rebates, Tariffs & Savings
Londonderry households are increasingly looking to move away from ageing gas storage units or power‑hungry electric cylinders and into efficient options like a heat pump hot water system, a modern electric hot water system or a roof‑mounted solar hot water system. For hot water nsw homes, a mix of Australian Government and NSW hot water rebate nsw programs can apply. Small‑scale Technology Certificates (STCs) provide an upfront discount on eligible solar hot water and heat pump systems, effectively lowering the solar hot water system and heat pump hot water price / cost at the point of sale. On top of this, state‑based schemes can offer a heat pump hot water rebate, solar hot water rebate or even an electric hot water system rebate when replacing old, inefficient units.
When you combine these rebates with the right tariff and, ideally, rooftop solar, the payback period on a new heat pump hot water installation or solar hot water tank replacement can be cut dramatically. Many Londonderry households see hundreds of dollars per year in savings, especially when using timers or solar diversion to heat water in the middle of the day. That is why efficient options are often considered among the best hot water system Australia choices for bill‑conscious families.
If your hot water system is getting on a bit, running out of hot water or needing frequent hot water repair, it is a good time to see whether a solar hot water repair and upgrade, or a full electric hot water installation or heat pump swap, could work for your place. In Londonderry, with strong solar exposure and a growing interest in sustainable, all‑electric homes, working with experienced hot water installers like us can help you choose the most efficient hot water system for your needs, reduce bills and future‑proof your home. Talk to our local hot water nsw specialists today for personalised advice on hot water repair, solar hot water vs electric hot water options, and the right hot water system price / cost and rebates for your household.