Hot Water Systems in Kerrimuir
The 3129 postcode, covering Kerrimuir, Box Hill North and Mont Albert North and surrounding areas, is home to around 7,217 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 Kerrimuir and the 3129 area, 566 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 Kerrimuir's climate delivering an average of 4.1 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 3129
144th
State Wide
520th
Australia Wide
Hot Water Installation Kerrimuir
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 Kerrimuir
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterKerrimuir
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 Kerrimuir
Compare heat pump hot water systems suitable for Kerrimuir'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 - Kerrimuir, 3129
Hot Water Demographics - Kerrimuir
Based on the Australian Bureau of Statistics 2021 Census (ABS), Kerrimuir has around 7,217 private dwellings, home to approximately 17,363 people. With an average household size of 2.6 people, and around 50 litres of hot water used per person each day in Australia, Kerrimuir households use approximately 130 litres of hot water daily, equating to a massive 0.9 million litres of hot water used across the suburb every single day.
Other census insights reinforce Kerrimuir's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Kerrimuir community is home to 1,576 couple families with children and 306 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,086 homes owned with a mortgage and 2,426 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.
Kerrimuir is converting hot water demand to efficient systems faster than many peers, with 7.8% of dwellings already upgraded.
Hot water systems in Kerrimuir
Across Kerrimuir, more households are rethinking their old gas and electric hot water system and switching to 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 2.6 people and more than 6,500 dwellings in the 3129 postcode, reliable, affordable hot water is a big part of everyday life and energy bills. Many homes are owned outright or with a mortgage, so upgrading to an energy efficient hot water system is a logical next step to protect budgets and boost property value.
Kerrimuir’s climate is well suited to efficient hot water. Local solar exposure averages about 14.8 MJ/m² per day, which is roughly 4.1 kWh/m² of sunshine to power a solar hot water heating system or support a high-performance heat pump hot water system. That means strong year-round performance for options like rheem solar hot water, rinnai solar hot water and chromagen solar hot water, especially when paired with rooftop solar. With median household income around $1,920 a week and many families juggling mortgages and school costs, the annual hot water energy savings from moving away from older resistive electric or gas systems can make a noticeable difference.
In 3129, the mix of three‑ and four‑bedroom homes means hot water demand is steady, especially in family households and multi‑shower homes. For many properties, hot water use can be 20–30% of total household energy, so choosing the most efficient hot water system matters. Homeowners are increasingly comparing heat pump vs solar hot water, weighing up the most efficient hot water system for their roof space, budget and tariffs. Modern systems from brands such as Sanden heat pump, Rheem heat pump hot water and other best heat pump hot water system options are popular where roof space is tight, while rheem solar hot water and chromagen solar hot water suit homes with good north‑facing roof area.
Typical annual bill savings in Kerrimuir can look like:
• Old electric to heat pump hot water installation: $450–$900 per year • Gas to heat pump hot water installation: $350–$750 per year • Gas to solar hot water installation: $300–$700 per year • Old electric to modern electric hot water installation with solar: $250–$600 per year
Recent local data shows 566 efficient hot water systems have already been installed in the Kerrimuir postcode, covering both heat pump and solar hot water installation projects. Installations were modest in the early 2000s, but jumped sharply around 2008–2010, with strong years again from 2015 through 2020 and another lift in 2024. This steady stream of hot water installation work reflects growing interest in electrification, lower running costs and moving towards the best hot water system Australia can offer for long‑term savings.
For many Kerrimuir homes, the switch also involves solar hot water vs electric hot water, or electric hot water vs gas hot water, especially as gas prices rise. When older units fail, owners often look at solar hot water tank replacement or a full upgrade to an energy efficient hot water system. Local installers can help with hot water repair, solar hot water repair, new electric hot water installation, heat pump hot water installation and ongoing servicing to keep systems running efficiently and quietly.
Hot Water Rebates, Tariffs & Savings
There is strong interest in Kerrimuir in replacing old gas or electric units with efficient options, helped by a range of hot water rebate VIC programs. Federal incentives like Small‑scale Technology Certificates (STCs) apply to eligible solar hot water system and heat pump hot water systems, effectively cutting the solar hot water price / cost or heat pump hot water price / cost at the point of sale. On top of this, state‑based schemes can offer a solar hot water rebate, heat pump hot water rebate or electric hot water system rebate, depending on the technology and your circumstances. These discounts can reduce the hot water system price / cost by a substantial percentage and shorten payback times from 8–10 years down to as little as 3–5 years, especially if you already have solar. Using timers or a solar‑diverter to run your system when your panels are generating can further improve savings and help you run the most efficient hot water system possible.
If you live in Kerrimuir and your gas or electric unit is getting old, now is a smart time to check whether your home is ready for a hot water upgrade. Whether you are leaning towards a solar hot water system, a high‑efficiency heat pump hot water system or a well‑sized electric hot water system, working with experienced hot water installers like us helps you tap into hot water rebate VIC options, reduce bills, cut emissions and future‑proof your home. Reach out to trusted local experts for personalised advice on hot water VIC solutions that suit your budget, roof and family’s daily routine.