Hot Water Systems in Hawthorn
The 3122 postcode, covering Hawthorn, Glenferrie South, Auburn South, Hawthorn North and Hawthorn West and surrounding areas, is home to around 11,488 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 Hawthorn and the 3122 area, 202 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 Hawthorn'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 3122
289th
State Wide
1022nd
Australia Wide
Hot Water Installation Hawthorn
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 Hawthorn
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterHawthorn
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 Hawthorn
Compare heat pump hot water systems suitable for Hawthorn'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 - Hawthorn, 3122
Hot Water Demographics - Hawthorn
Based on the Australian Bureau of Statistics 2021 Census (ABS), Hawthorn has around 11,488 private dwellings, home to approximately 20,235 people. With an average household size of 2.1 people, and around 50 litres of hot water used per person each day in Australia, Hawthorn households use approximately 105 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 Hawthorn's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Hawthorn community is home to 1,403 couple families with children and 236 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,422 homes owned with a mortgage and 2,602 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.
Hawthorn is converting hot water demand to efficient systems faster than many peers, with 1.8% of dwellings already upgraded.
Hot water systems in Hawthorn
Across Hawthorn, more households and businesses are switching to energy efficient hot water systems to get away from rising gas prices and old power‑hungry units. With a median household income over $2,100 a week and a lot of professionals and families juggling busy lives, reliable hot water that quietly cuts bills is becoming the norm. The average household size in Hawthorn is around 2.1 people, spread across more than 9,700 occupied dwellings, so choosing the right hot water system for apartments, terraces and larger family homes really matters.
Hawthorn’s solar exposure averages about 15 MJ/m² per day over the year – roughly 4.2 kWh of usable solar energy per square metre, per day. That solid Melbourne sun is ideal for a solar hot water system or a modern heat pump hot water system, both of which can slash the energy needed to heat your water. When you upgrade from an old gas or electric hot water system to an efficient hot water technology, it is common for Hawthorn homeowners to cut their hot water energy use by more than half.
In 3122, there is a mix of separate houses and a large number of flats and apartments, which shapes hot water demand. Smaller households still use a surprising amount of energy on hot water – often 20–30% of total usage – so an energy efficient hot water system is one of the quickest wins if you want to reduce running costs. For some, that means a compact electric hot water system paired with rooftop solar; for others, a dedicated solar hot water heating system or a quiet heat pump hot water system is the best fit. Well‑known brands like Rheem, Rinnai, Sanden and Thermann are popular locally, with options ranging from rheem solar hot water and rinnai solar hot water through to sanden heat pump and rheem heat pump hot water units that are often rated among the best heat pump hot water system choices in Australia.
To give you a feel for the savings, here are typical bill reductions many Hawthorn households see after hot water installation upgrades:
• Old electric to heat pump hot water installation: save around $400–$800 per year. • Gas to heat pump hot water system: save roughly $300–$600 per year. • Gas to solar hot water installation: save about $250–$550 per year. • Old electric to modern electric hot water installation with solar: save around $300–$700 per year.
Local data shows 202 efficient hot water installations (mainly heat pump and solar hot water systems) have already gone into Hawthorn homes and units. Installations really took off around 2007–2010, with another strong run from 2017 onwards, reflecting growing interest in electrification, hot water repair and replacement, and lower running costs. Recent years still show steady numbers, as more owners of older properties look at heat pump vs solar hot water when their existing cylinder fails, or ask about solar hot water vs electric hot water when planning renovations.
When you are comparing hot water system price or cost, it is important to factor in rebates. Hawthorn homeowners can usually access Federal Small‑scale Technology Certificates (STCs) for eligible solar hot water heating system and heat pump hot water installation, plus Victorian state incentives such as a heat pump hot water rebate or solar hot water rebate under various programs. There are also offers that can support an electric hot water system rebate when moving away from gas. These discounts can effectively reduce the system cost by a substantial percentage and bring the heat pump hot water price or cost, or the solar hot water price or cost, much closer to a standard electric unit. Combine that with using timers, smart controls or solar‑diversion and you can often cut hundreds of dollars a year off bills, with payback periods dropping to just a few years. If your existing cylinder is due for a solar hot water tank replacement or you need solar hot water repair or general hot water repair, it can be the perfect time to upgrade to the most efficient hot water system you can reasonably afford.
For Hawthorn, VIC, the big decision is usually heat pump vs solar hot water, or solar hot water vs electric hot water, especially if you are aiming for an all‑electric home and want to move away from gas hot water. The best hot water system Australia‑wide for you will depend on roof space, whether you already have solar panels, your tariff, and how much hot water your household uses. Many owners are now pairing an energy efficient hot water system with rooftop solar and off‑peak tariffs to maximise savings and tap into every available hot water rebate vic offers.
If you are in Hawthorn and your old gas or electric unit is on its last legs, this is a smart time to check whether your home is ready for a hot water upgrade. A modern heat pump hot water system, solar hot water system or efficient electric hot water system can reduce bills, cut emissions and future‑proof your property as energy prices change. Talk with experienced local hot water installers like us – heat pump and solar hot water specialists – for personalised advice on hot water vic rebates, the right system size, and reliable hot water installation or hot water repair that suits your home, budget and long‑term plans.