Hot Water Systems in Calulu
The 3875 postcode, covering Calulu, Bairnsdale, Banksia Peninsula, Bengworden, Broadlands, Bullumwaal, Clifton Creek, Deptford, East Bairnsdale, Eastwood, Ellaswood, Fairy Dell, Flaggy Creek, Forge Creek, Goon Nure, Granite Rock, Hillside, Hollands Landing, Iguana Creek, Lindenow South, Lucknow, Marthavale, Melwood, Merrijig, Mount Taylor, Newlands Arm, Ryans, Sarsfield, Tabberabbera, Walpa, Waterholes, Wentworth, Woodglen, Wuk Wuk and Wy Yung and surrounding areas, is home to around 8,712 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 Calulu and the 3875 area, 2,201 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 Calulu's climate delivering an average of 4.2 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 3875
34th
State Wide
94th
Australia Wide
Hot Water Installation Calulu
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 Calulu
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCalulu
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 Calulu
Compare heat pump hot water systems suitable for Calulu'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 - Calulu, 3875
Hot Water Demographics - Calulu
Based on the Australian Bureau of Statistics 2021 Census (ABS), Calulu has around 8,712 private dwellings, home to approximately 18,323 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Calulu households use approximately 115 litres of hot water daily, equating to a massive 1.0 million litres of hot water used across the suburb every single day.
Other census insights reinforce Calulu's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Calulu community is home to 1,311 couple families with children and 442 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,371 homes owned with a mortgage and 3,337 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.
Calulu is converting hot water demand to efficient systems faster than many peers, with 25.3% of dwellings already upgraded.
Hot water systems in Calulu
Across Calulu and the wider 3875 area, more households are rethinking their hot water system and moving to energy efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With an average household size of around 2.3 people and a big share of homes owned outright or with a mortgage, many locals are in a good position to upgrade from older gas or off‑peak electric units to something that costs less to run.
Calulu enjoys strong sunlight, with mean daily solar exposure of about 15.1 MJ/m², or roughly 4.2 kWh/m² per day across the year. That level of sunshine suits both a solar hot water heating system and a high quality heat pump hot water installation, especially when paired with rooftop solar. For households on a median weekly income of about $1,239, shaving hundreds of dollars a year off power bills by switching to an energy efficient hot water system is a logical next step.
In the 3875 postcode there are around 7,867 occupied private dwellings, most of them separate houses with three or four bedrooms. That means decent hot water demand for showers, laundry and dishwashers, and a lot of older electric and gas hot water still humming away in back corners. Upgrading from gas hot water or a tired electric unit to the most efficient hot water system you can afford is one of the quickest ways to cut running costs, particularly if you already have solar panels.
Typical annual bill savings in Calulu look like this:
• Old electric to heat pump hot water system: $400–$800 per year • Gas to heat pump hot water system: $300–$600 per year • Gas to solar hot water system: $250–$500 per year • Old electric to modern electric hot water installation with solar: $200–$450 per year
Brands like Rheem heat pump hot water and Rheem solar hot water are popular for their reliability and broad range, while Sanden heat pump systems are often chosen for premium efficiency and very low running costs. Rinnai solar hot water and Chromagen solar hot water are also common options for a solar hot water installation, especially on north‑facing roofs around Calulu where solar exposure is excellent.
Recent data shows 2,201 efficient hot water systems have already been installed in the 3875 postcode, combining both heat pumps and solar hot water. Installations were modest in the early 2000s, but jumped sharply around 2008–2011 with peaks like 243 installs in 2009, and have stayed solid through to 2024. This steady stream of hot water installation work reflects growing local interest in electrification, lower running costs and moving towards an all‑electric home.
When it comes to hot water repair and replacement, many Calulu households are now weighing up heat pump vs solar hot water, or solar hot water vs electric hot water. Heat pump hot water price and solar hot water price depend on size and brand, but the hot water system price is often heavily reduced by incentives. There are federal Small‑scale Technology Certificates (STCs) that apply to eligible solar hot water systems and heat pump hot water systems, effectively acting as a solar hot water rebate or heat pump hot water rebate at the point of sale. Victoria also offers state‑based hot water rebate VIC programs for efficient systems, and in some cases an electric hot water system rebate when you are replacing gas.
For Calulu homeowners, these hot water rebate VIC schemes can knock a substantial percentage off the upfront hot water system cost, bringing the heat pump hot water cost or solar hot water cost much closer to a standard tank. Combine that with typical bill savings of a few hundred dollars a year and the payback period can be cut to just a handful of years, especially if you use timers or solar diversion to run your electric hot water installation during the middle of the day.
If your existing unit is due for solar hot water tank replacement, needs solar hot water repair, or you are comparing electric hot water vs gas hot water, it is a good time to check whether your Calulu home is ready for a hot water upgrade. Working with experienced hot water installers like us, who specialise in heat pump hot water installation, solar hot water repair and efficient electric hot water system upgrades, helps you choose the best hot water system Australia has to offer for your needs. With strong local sunshine, a community that cares about bills and sustainability, and generous incentives for energy efficient hot water, now is a smart time to cut emissions, future‑proof your home and talk to trusted local experts for personalised advice.