Hot Water Systems in Johnstones Hill
The 3870 postcode, covering Johnstones Hill, Budgeree East, Boolarra, Boolarra South, Budgeree, Grand Ridge and Mirboo East and surrounding areas, is home to around 597 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 Johnstones Hill and the 3870 area, 84 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 Johnstones Hill's climate delivering an average of 4.0 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 3870
401st
State Wide
1509th
Australia Wide
Hot Water Installation Johnstones Hill
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 Johnstones Hill
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterJohnstones Hill
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 Johnstones Hill
Compare heat pump hot water systems suitable for Johnstones Hill'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 - Johnstones Hill, 3870
Hot Water Demographics - Johnstones Hill
Based on the Australian Bureau of Statistics 2021 Census (ABS), Johnstones Hill has around 597 private dwellings, home to approximately 1,184 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Johnstones Hill 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 Johnstones Hill's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Johnstones Hill community is home to 82 couple families with children and 23 one-parent families, meaning a large proportion of households face substantial hot water demand. With 202 homes owned with a mortgage and 248 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.
Johnstones Hill is converting hot water demand to efficient systems faster than many peers, with 14.1% of dwellings already upgraded.
Hot water systems in Johnstones Hill
In Johnstones Hill, more locals are rethinking their old gas and electric hot water system and switching to smarter options like a heat pump hot water system, solar hot water system and modern electric hot water system. With most of the 511 dwellings in the 3870 postcode being separate houses and an average household size of 2.3 people, hot showers, dishwashers and laundries all add up. Upgrading to an energy efficient hot water system is a simple way to cut running costs without changing how you live.
The Boolarra weather station shows an average annual solar exposure of around 14.5 MJ/m² per day, or roughly 4 kWh of sun per square metre, per day. That is solid solar exposure for both a solar hot water heating system and a quality heat pump hot water system, especially if you already have rooftop solar. With median household income in the area sitting around $1,219 per week and many homes owned outright or with a modest mortgage, investing in the best hot water system Australia can offer is often about long-term savings and comfort rather than constant repairs.
Across the 3870 postcode, there have been 84 efficient hot water installations recorded, mainly heat pump and solar hot water installation jobs. Installations peaked around 2009–2011, then steadied with a few systems going in most years right through to 2023. This steady trickle shows growing interest in electrification and lower bills, as families and retirees look for the most efficient hot water system to suit their lifestyle.
For a typical Johnstones Hill household, hot water can be one of the biggest energy users after heating. Swapping an old electric hot water system or gas unit for a modern option can deliver real savings:
- Old electric to heat pump: save roughly $350–$700 per year on bills
- Gas to heat pump: save around $250–$600 per year
- Gas to solar hot water: save around $200–$550 per year
- Old electric to modern electric with solar: save around $200–$500 per year
Locally, brands like Rheem, Rinnai, Sanden and Thermann are common choices. Rheem solar hot water and Rinnai solar hot water are popular for households wanting a proven solar hot water tank replacement, while Rheem heat pump hot water and premium systems like a Sanden heat pump are often picked as the best heat pump hot water system for all-electric homes. Thermann and similar brands offer reliable options at a competitive hot water system price / cost, whether you are planning a heat pump hot water installation, solar hot water repair or a straightforward electric hot water installation.
When you compare heat pump vs solar hot water, both can dramatically lower your hot water system price / cost over the life of the unit. A heat pump hot water price / cost is often lower upfront than a full solar hot water price / cost, but a well-designed solar hot water vs electric hot water setup can deliver excellent long-term savings, especially with good sun and batteries. Many households choose a heat pump paired with rooftop solar as a flexible, energy efficient hot water system that works well even on cloudy Gippsland days.
Hot Water Rebates, Tariffs & Savings
For Johnstones Hill households, there is growing interest in replacing old gas or electric hot water with efficient options, helped along by generous incentives. Eligible heat pump hot water installation and solar hot water installation projects can attract Small-scale Technology Certificates (STCs) under the Federal scheme, plus Victorian hot water rebate VIC programs that act like an instant discount. These can substantially reduce the upfront hot water system price / cost – in some cases cutting the effective cost by a sizeable percentage. There are also electric hot water system rebate options when you move away from gas, and a specific heat pump hot water rebate or solar hot water rebate may apply depending on the product and installer.
Once installed, many Johnstones Hill homes are saving hundreds of dollars per year, especially when they use timers or solar diversion to run their hot water when rooftop solar is producing. Combine rebates with smart tariffs and the payback period on a solar hot water system or heat pump can shrink to just a few years.
If your current unit is more than 10 years old, running out of hot water, or you are weighing up electric hot water vs gas hot water, now is a good time to review your options. Whether you are considering rheem solar hot water, chromagen solar hot water, a new electric hot water installation or a full solar hot water repair and upgrade, experienced local hot water VIC installers can walk you through the choices, including hot water repair, solar hot water tank replacement and hot water rebate VIC eligibility.
To find out which system will suit your Johnstones Hill home and budget, it is worth speaking with trusted local heat pump and solar hot water specialists. They can help you compare heat pump vs solar hot water, navigate rebates, and design an energy efficient hot water system that cuts bills, reduces emissions and future-proofs your home. Reach out to our local team for personalised advice and see how a smarter hot water upgrade could work for you.