Hot Water Systems in Catalina
The 2536 postcode, covering Catalina, Merricumbene, Murrengenburg, Batehaven, Batemans Bay, Benandarah, Bimbimbie, Buckenbowra, Currowan, Denhams Beach, Depot Beach, Durras North, East Lynne, Guerilla Bay, Jeremadra, Lilli Pilli, Long Beach, Maloneys Beach, Malua Bay, Mogo, Nelligen, North Batemans Bay, Pebbly Beach, Rosedale, Runnyford, South Durras, Sunshine Bay, Surf Beach, Surfside and Woodlands and surrounding areas, is home to around 11,105 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 Catalina and the 2536 area, 1,302 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 Catalina's climate delivering an average of 4.4 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 2536
42nd
State Wide
206th
Australia Wide
Hot Water Installation Catalina
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 Catalina
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCatalina
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 Catalina
Compare heat pump hot water systems suitable for Catalina'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 - Catalina, 2536
Hot Water Demographics - Catalina
Based on the Australian Bureau of Statistics 2021 Census (ABS), Catalina has around 11,105 private dwellings, home to approximately 17,464 people. With an average household size of 2.2 people, and around 50 litres of hot water used per person each day in Australia, Catalina households use approximately 110 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 Catalina's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Catalina community is home to 963 couple families with children and 512 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,855 homes owned with a mortgage and 3,600 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.
Catalina is converting hot water demand to efficient systems faster than many peers, with 11.7% of dwellings already upgraded.
Hot water systems in Catalina
Across Catalina and the wider 2536 area, more homeowners are rethinking their old gas and electric hot water system and moving to energy efficient options. With an average household size of around 2.2 people and a big share of dwellings owned outright or with a mortgage, many locals are at the perfect stage to upgrade before their current unit fails. Power prices keep climbing, so shifting to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical next step that can deliver real annual hot water energy savings for Catalina households.
Catalina is blessed with strong sunshine, with mean daily solar exposure of about 15.7 MJ/m² – roughly 4.4 kWh per square metre per day over the year. That level of solar makes both a solar hot water heating system and a high quality heat pump hot water installation perform very well, especially when paired with rooftop solar. For many retired couples and small families in the suburb, hot water can quietly account for a large chunk of household energy use, so upgrading the hot water system is one of the simplest ways to cut bills without changing your lifestyle.
Around 7,800 occupied private dwellings across 2536, mostly separate houses, create steady demand for reliable hot water installation and hot water repair. Older gas units are common, but more homes are switching to all‑electric, choosing the most efficient hot water system they can within budget. Brands like Rheem heat pump hot water and Sanden heat pump units are popular for coastal climates, while Rheem solar hot water, Rinnai solar hot water and Chromagen solar hot water systems are often chosen where roof orientation is ideal. For many, the best hot water system Australia offers is one that balances up‑front hot water system price / cost with long‑term savings and low maintenance.
Typical annual bill savings in Catalina look like:
• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water: $300–$700 per year • Gas to solar hot water system: $250–$600 per year • Old electric to modern electric hot water installation with good rooftop solar: $250–$500 per year
Since 2001, there have been 1,302 efficient hot water systems installed in the 2536 postcode, including both heat pump and solar hot water installation projects. Installations spiked around 2009–2011, with more than 700 systems installed in those three years alone, driven by generous rebates and strong interest in solar hot water vs electric hot water. While yearly numbers have settled since, steady installations through to 2025 show ongoing local interest in electrification, lower running costs and replacing ageing units with an energy efficient hot water system.
Hot Water Rebates, Tariffs & Savings
For Catalina homeowners, the financial side of a hot water upgrade is often easier than expected. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible heat pump hot water and solar hot water heating systems, effectively reducing the heat pump hot water price / cost or solar hot water price / cost at the point of sale. On top of this, NSW hot water rebate programs can support efficient upgrades, including a heat pump hot water rebate or solar hot water rebate for qualifying properties, and in some cases an electric hot water system rebate when replacing old, inefficient models. Together, these hot water rebate NSW offers can cut the up‑front cost by a substantial percentage and shorten payback periods to just a few years, especially when you also have rooftop solar and use timers or solar‑diversion controls. Many Catalina households see hundreds of dollars per year in savings when moving from electric hot water vs gas hot water to a quality heat pump or solar unit.
If you are weighing up heat pump vs solar hot water, or comparing solar hot water vs electric hot water, it helps to talk to local specialists who understand Catalina’s climate, tariffs and typical home layouts. Whether you need solar hot water repair, solar hot water tank replacement, hot water repair on an older cylinder, or a complete electric hot water installation, experienced installers can recommend the best heat pump hot water system or solar option for your budget and roof. Catalina’s strong solar exposure and growing interest in sustainability mean now is a smart time to future‑proof your home, reduce emissions and keep your showers steaming without bill shock. To see which hot water system suits your place and what hot water rebate NSW support you may qualify for, connect with trusted local experts for personalised advice and a tailored quote with us.