Hot Water Systems in Collerina
The 2839 postcode, covering Collerina, Brewarrina, Gongolgon, Narran Lake, Talawanta and Weilmoringle and surrounding areas, is home to around 468 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 Collerina and the 2839 area, 10 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 Collerina's climate delivering an average of 5.6 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.
Hot Water Ranking
Postcode 2839
576th
State Wide
2327th
Australia Wide
Hot Water Installation Collerina
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 Collerina
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCollerina
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 Collerina
Compare heat pump hot water systems suitable for Collerina'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 - Collerina, 2839
Hot Water Demographics - Collerina
Based on the Australian Bureau of Statistics 2021 Census (ABS), Collerina has around 468 private dwellings, home to approximately 882 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Collerina 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 Collerina's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Collerina community is home to 48 couple families with children and 50 one-parent families, meaning a large proportion of households face substantial hot water demand. With 38 homes owned with a mortgage and 89 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.
Collerina is converting hot water demand to efficient systems faster than many peers, with 2.1% of dwellings already upgraded.
Hot water systems in Collerina
In Collerina, more locals are rethinking their old gas and electric hot water and switching to energy efficient options like a modern electric hot water system, a heat pump hot water system or a solar hot water system. With most homes here being separate houses and an average household size of around 2.3 people, hot water is a big chunk of the power bill, especially on modest median household incomes. Upgrading your hot water system is a simple way to lock in long term savings without changing how you live.
Collerina’s climate is perfect for efficient hot water. The nearby Weilmoringle weather station records an impressive 20.1 MJ/m² of average daily solar exposure each year – roughly 5.6 kWh/m² per day – which is excellent for any solar hot water heating system and also helps a heat pump hot water system run more efficiently. With many homes owned outright or on low mortgages, and a large number of rented dwellings as well, there is a real opportunity for both owner occupiers and landlords to cut running costs and make homes more comfortable.
Across the 2839 area, households are starting to install more efficient hot water systems that better match local demand. Smaller homes might only need a compact electric hot water installation, while larger family homes with three or more bedrooms often look to the most efficient hot water system they can afford, such as a quality heat pump hot water installation or a solar hot water installation tied in with rooftop solar. Brands like Rheem, Rinnai and Sanden heat pump units are popular for reliable performance, while Chromagen solar hot water is a well known option for a durable solar hot water tank replacement.
Typical bill savings in Collerina from an efficient hot water upgrade can be substantial:
• Old electric to heat pump hot water system: save roughly $350–$700 per year • Gas to heat pump hot water system: save around $300–$600 per year • Gas to solar hot water system: save about $250–$550 per year • Old electric to modern electric hot water with solar: save roughly $200–$500 per year
Recent data shows 10 efficient hot water systems installed in the 2839 postcode, combining heat pump and solar hot water installations. There was an early wave around 2009–2012, then a quiet period, and now a fresh jump with four new systems installed in 2025 alone. That renewed interest reflects Collerina households looking to electrification, lower running costs and more energy efficient hot water system options as power prices rise. Many are weighing up heat pump vs solar hot water and even solar hot water vs electric hot water to find the best fit for their roof space, budget and hot water demand.
Hot Water Rebates, Tariffs & Savings
Right across NSW, including Collerina, more people are replacing old gas or resistive electric hot water with efficient choices like a heat pump hot water system, a modern electric hot water system or a solar hot water heating system. Australian Government Small scale Technology Certificates (STCs) apply to eligible heat pump and solar hot water systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate that cuts the solar hot water price / cost or heat pump hot water price / cost before you even pay. On top of that, NSW programmes and retailer offers can operate as a hot water rebate nsw, and there are sometimes specific electric hot water system rebate deals when you move off gas.
For many Collerina homes, these discounts can reduce the installed hot water system price / cost by a significant percentage and trim payback periods to just a few years, especially when paired with rooftop solar. Typical savings from an efficient hot water upgrade can easily run to hundreds of dollars per year off bills. Using timers or solar diversion controls so your electric hot water installation or rheem heat pump hot water unit runs when your solar is generating can make it the most energy efficient hot water system possible. Comparing electric hot water vs gas hot water and heat pump vs solar hot water with a local expert helps you find the best hot water system Australia has to offer for your situation.
If you live in Collerina and your current unit is old, noisy, running out of hot water or needing frequent hot water repair, it is a good time to look at an upgrade. Whether you are considering rheem solar hot water, rinnai solar hot water, a sanden heat pump or chromagen solar hot water, experienced hot water nsw installers can guide you on solar hot water price / cost, solar hot water repair options, solar hot water vs electric hot water, and which is the best heat pump hot water system for your home. Collerina’s strong sun and growing interest in sustainability mean efficient hot water systems can help you cut emissions, reduce bills and future proof your home. To check if your place is ready for a hot water installation upgrade or hot water repair, connect with trusted local experts for personalised advice with us and make the most of Collerina’s energy efficiency potential.