Hot Water Systems in Coomboona
The 3629 postcode, covering Coomboona, Ardmona, Mooroopna, Mooroopna North and Undera and surrounding areas, is home to around 3,949 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 Coomboona and the 3629 area, 596 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 Coomboona'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 3629
132nd
State Wide
496th
Australia Wide
Hot Water Installation Coomboona
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 Coomboona
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCoomboona
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 Coomboona
Compare heat pump hot water systems suitable for Coomboona'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 - Coomboona, 3629
Hot Water Demographics - Coomboona
Based on the Australian Bureau of Statistics 2021 Census (ABS), Coomboona has around 3,949 private dwellings, home to approximately 8,428 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Coomboona households use approximately 115 litres of hot water daily, equating to a massive 0.5 million litres of hot water used across the suburb every single day.
Other census insights reinforce Coomboona's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Coomboona community is home to 516 couple families with children and 317 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,124 homes owned with a mortgage and 1,298 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.
Coomboona is converting hot water demand to efficient systems faster than many peers, with 15.1% of dwellings already upgraded.
Hot water systems in Coomboona
Across Coomboona and the wider 3629 area, more households are quietly upgrading to an energy efficient hot water system to keep bills down and move away from ageing gas units. With around 3,600 occupied dwellings and an average household size of 2.3 people, most homes here are typical family houses that use a lot of hot water for showers, washing and everyday living. Many are owned outright or with a mortgage, so investing in a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical next step.
Coomboona’s climate is ideal for efficient hot water. Nearby Mooroopna enjoys an average annual solar exposure of about 17.5 MJ/m² per day – roughly 4.9 kWh/m²/day – which is excellent for a solar hot water heating system and also supports strong performance from heat pump hot water running on daytime solar. For local families with a median household income around $1,167 a week and plenty of homes with three or more bedrooms, shifting from old gas or off‑peak electric hot water to an energy efficient hot water system can mean serious annual hot water energy savings.
In a postcode where separate houses dominate and many properties have good roof space, system sizes can be tailored to match demand. A typical Coomboona family might pair a 250–315L heat pump hot water system or solar hot water tank with rooftop solar, while smaller households or older couples may opt for a compact electric hot water installation that still takes advantage of solar. Local installers are seeing steady uptake of brands like Rheem heat pump hot water, Sanden heat pump and Rinnai solar hot water, as well as Chromagen solar hot water on rural properties wanting reliable, low‑running‑cost hot water.
Average bill savings will vary, but these ranges are realistic for Coomboona homes:
• Old electric to heat pump hot water system: save around $350–$700 per year • Gas to heat pump hot water: save roughly $250–$600 per year • Gas to solar hot water system: save around $200–$550 per year • Old electric to modern electric hot water with solar: save about $200–$500 per year
There have already been 596 efficient hot water installations in the 3629 postcode, covering both heat pump hot water installation and solar hot water installation. After a slow start in the early 2000s, numbers jumped sharply from 2007 onwards, with strong years in 2009, 2015 and a clear surge again from 2021. Recent data shows 74 systems installed in 2023 and dozens more in 2024 and 2025, reflecting growing local interest in electrification, lower running costs and the most efficient hot water system options available.
Hot Water Rebates, Tariffs & Savings
All this activity is helped along by hot water rebate VIC programs and federal incentives. Eligible Coomboona homeowners can often claim Small‑scale Technology Certificates (STCs) on a heat pump hot water system or solar hot water heating system, plus state‑based incentives such as a heat pump hot water rebate or solar hot water rebate. These can effectively cut the heat pump hot water price or solar hot water price by a substantial percentage, bringing premium brands like Sanden heat pump or Rheem solar hot water within reach. There are also electric hot water system rebate options when replacing older, less efficient units with the best hot water system Australia has to offer in modern electric, heat pump or solar. When you factor in hundreds of dollars per year in bill savings, the payback period on a quality system can be shortened further by using timers, smart controls or solar diversion to run your hot water system when rooftop solar is producing.
If you are weighing up heat pump vs solar hot water, or comparing solar hot water vs electric hot water and even electric hot water vs gas hot water, it pays to look beyond just the hot water system price and consider long‑term running costs, hot water repair history and how well each option suits your roof, block size and power supply. Local installers can also help with solar hot water repair, hot water repair, solar hot water tank replacement and full electric hot water installation to keep your system running smoothly.
If your existing gas or electric unit is ageing, noisy or struggling to keep up, now is a smart time to check whether your Coomboona home is ready for a hot water upgrade. With strong solar resources, a community already embracing efficient hot water systems and generous hot water rebate VIC incentives, switching to a modern heat pump, solar or efficient electric system can cut your bills, reduce emissions and future‑proof your home. Talk with our experienced hot water installers and local heat pump and solar hot water specialists for personalised advice on the best heat pump hot water system or solar option for your property, and find out which hot water systems Coomboona households are choosing to stay comfortable for less.