Hot Water Systems in Lapstone
The 2773 postcode, covering Lapstone and Glenbrook and surrounding areas, is home to around 2,205 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 Lapstone and the 2773 area, 175 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 Lapstone'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 2773
277th
State Wide
1101st
Australia Wide
Hot Water Installation Lapstone
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 Lapstone
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterLapstone
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 Lapstone
Compare heat pump hot water systems suitable for Lapstone'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 - Lapstone, 2773
Hot Water Demographics - Lapstone
Based on the Australian Bureau of Statistics 2021 Census (ABS), Lapstone has around 2,205 private dwellings, home to approximately 5,809 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Lapstone households use approximately 140 litres of hot water daily, equating to a massive 0.3 million litres of hot water used across the suburb every single day.
Other census insights reinforce Lapstone's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Lapstone community is home to 523 couple families with children and 75 one-parent families, meaning a large proportion of households face substantial hot water demand. With 822 homes owned with a mortgage and 990 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.
Lapstone is converting hot water demand to efficient systems faster than many peers, with 7.9% of dwellings already upgraded.
Hot water systems in Lapstone
Across Lapstone, more homeowners are rethinking their old gas and electric hot water system and switching to energy efficient options like a heat pump hot water system, solar hot water system or modern electric hot water system. With an average household size of around 2.8 people and more than 1,800 families in the 2773 postcode, hot water demand is steady, and so are power bills – which makes smarter hot water a logical next upgrade.
Lapstone’s climate is ideal for efficient hot water. The local Glenbrook Bowling Club weather station records mean daily solar exposure of about 15.8 MJ/m², which is roughly 4.4 kWh/m² per day. That strong sunlight helps a solar hot water heating system and heat pump hot water run efficiently all year round. With many homes owned outright or with a mortgage, and median household incomes above the state average, investing in the best hot water system Australia can offer is within reach – especially when you factor in rebates and the annual hot water energy savings now possible.
In the 2773 area, separate houses dominate, with a big share of three and four bedroom homes. That lines up with typical families using a lot of hot water for showers, washing and dishwashers. For many households, hot water can be 20–30% of total energy use. Swapping an old electric hot water system or ageing gas unit for an energy efficient hot water system such as a Sanden heat pump or Rheem heat pump hot water unit, or a quality solar hot water system from brands like Rheem solar hot water, Rinnai solar hot water or Chromagen solar hot water, can make a noticeable dent in quarterly bills.
Average annual bill savings in Lapstone can look like this:
• Old electric to heat pump hot water installation: $400–$900 per year • Gas to heat pump vs solar hot water: typically $300–$800 per year • Gas to solar hot water installation: $300–$700 per year • Old electric to modern electric hot water installation with rooftop solar: $250–$600 per year
Over time, these savings help offset the hot water system price / cost. A heat pump hot water price / cost is usually higher upfront than a basic electric unit, but running costs are far lower. Likewise, a solar hot water price / cost is higher again, but with Lapstone’s sunshine and a good solar hot water tank replacement, you can often cover most of your hot water needs from the sun.
Lapstone has already seen 175 efficient hot water systems installed, including both heat pump and solar hot water installation jobs. Installations peaked around 2009–2011, when there were 47 systems installed in 2009 alone, followed by strong years in 2010 and 2011. While numbers dipped after that, there has been a steady trickle of new systems, including installations in 2020, 2024 and 2025. This long-term trend shows growing local interest in electrification, lower running costs and the most efficient hot water system options for the area.
Hot Water Rebates, Tariffs & Savings
Across Lapstone, more people are now looking at replacing old gas or resistive electric units with a heat pump hot water system, solar hot water vs electric hot water, or a high-efficiency electric hot water system that can run on rooftop solar. Homeowners can often access Federal incentives through Small-scale Technology Certificates (STCs), which reduce the upfront hot water system price / cost for eligible heat pump and solar hot water systems. On top of this, NSW hot water rebate nsw programs and an electric hot water system rebate or heat pump hot water rebate can apply, depending on the system and installer. Together, these incentives can cut the effective system cost by a substantial percentage and bring payback periods down to just a few years.
For many Lapstone homes, a well-sized energy efficient hot water system combined with solar can shave hundreds of dollars a year off bills. Using timers or solar diversion to run an electric hot water system when your PV is generating can push savings even further. For those comparing electric hot water vs gas hot water, the maths increasingly favours going all-electric, especially with a best heat pump hot water system matched to your family size.
If you live in Lapstone and your current unit is old, noisy or struggling, it is a great time to check whether your home is ready for a hot water upgrade. Whether you are considering a heat pump, a solar hot water system or a modern electric unit, working with experienced hot water installers who specialise in hot water nsw systems is the safest way to reduce bills, cut emissions and future-proof your home. Reach out to trusted local experts for personalised advice on hot water installation, hot water repair, solar hot water repair and solar hot water tank replacement, and make the most of today’s hot water rebate nsw options while they are available.