Hot Water Systems in Exeter
The 2579 postcode, covering Exeter, Big Hill, Brayton, Marulan, Marulan South, Penrose, Tallong and Wingello and surrounding areas, is home to around 2,070 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 Exeter and the 2579 area, 170 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 Exeter'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 2579
282nd
State Wide
1112nd
Australia Wide
Hot Water Installation Exeter
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 Exeter
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterExeter
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 Exeter
Compare heat pump hot water systems suitable for Exeter'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 - Exeter, 2579
Hot Water Demographics - Exeter
Based on the Australian Bureau of Statistics 2021 Census (ABS), Exeter has around 2,070 private dwellings, home to approximately 4,314 people. With an average household size of 2.5 people, and around 50 litres of hot water used per person each day in Australia, Exeter households use approximately 125 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 Exeter's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Exeter community is home to 360 couple families with children and 68 one-parent families, meaning a large proportion of households face substantial hot water demand. With 634 homes owned with a mortgage and 743 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.
Exeter is converting hot water demand to efficient systems faster than many peers, with 8.2% of dwellings already upgraded.
Hot water systems in Exeter
In Exeter and the wider 2579 area, more homeowners are shifting from old gas and ageing electric units to an energy efficient hot water system that actually suits how they live. With an average household size of around 2.5 people and most dwellings being separate houses, hot water demand is steady year-round, and power bills can really add up. Many households are paying off a mortgage, so reducing running costs without sacrificing comfort is a big win.
Exeter’s cool winters and mild summers pair surprisingly well with modern heat pump hot water and solar hot water technology. Local solar data from nearby Bundanoon shows an average annual solar exposure of about 15.9 MJ/m² a day – roughly 4.4 kWh/m²/day – which is plenty to drive a solar hot water system or a high efficiency heat pump hot water system. Upgrading from older gas or a resistive electric hot water system to an efficient hot water upgrade can trim a big chunk off household energy use, with annual hot water energy savings often reaching hundreds of dollars for typical Exeter families.
Across the 2579 postcode there are more than 1,600 occupied dwellings, many owned outright or with a mortgage, which makes long term savings from an energy efficient hot water system particularly attractive. For retirees and families alike, a reliable, low running cost hot water system price / cost is often more important than the absolute cheapest unit upfront. That is where choosing between a heat pump hot water system, a solar hot water heating system and a modern electric hot water system really matters.
In Exeter 2579, efficient hot water systems have already made an impact, with 170 efficient hot water installations (mainly heat pump and solar hot water installation jobs) recorded to date. Installations climbed sharply around 2009–2011, when solar hot water rebate programs were strong, and after a quieter period there has been a fresh lift in 2024 and 2025 as households look again at electrification and lower bills. This local track record shows growing interest in heat pump vs solar hot water options, moving away from gas, and choosing the most efficient hot water system for the property.
When it comes to system choice and hot water installation, brands like Rheem, Rinnai, Sanden and Thermann are common in the Southern Highlands. You will see Rheem solar hot water and Chromagen-style solar hot water system setups on many roofs, while Rheem heat pump hot water and Sanden heat pump units are popular for all electric homes chasing the best heat pump hot water system performance. Many locals pair a solar hot water system or heat pump hot water installation with existing rooftop solar to maximise self-consumption and keep bills down. Others opt for a quality electric hot water installation as a simple replacement, especially where solar hot water vs electric hot water calculations still favour a modern, well insulated tank.
Typical annual bill savings in Exeter for a well matched system can look like:
• Old electric to heat pump hot water system: save roughly $400–$800 per year • Gas to heat pump hot water system: save around $300–$600 per year • Gas to solar hot water system: save about $250–$500 per year • Old electric to modern electric hot water with solar PV: save around $250–$500 per year
On the rebate front, hot water nsw homeowners can usually access Federal incentives through Small-scale Technology Certificates (STCs) for approved solar hot water and heat pump systems. These effectively act like an upfront solar hot water rebate or heat pump hot water rebate, cutting the installed solar hot water price / cost or heat pump hot water price / cost by a substantial percentage. NSW state programs and some retailers also offer additional hot water rebate nsw style discounts, including electric hot water system rebate offers when replacing old, inefficient units. Combined, these can shorten payback periods considerably, especially if you use timers or solar diversion to run an electric hot water system when your PV is generating.
For many Exeter homes, the real question is not electric hot water vs gas hot water anymore, but which energy efficient hot water system will give the best mix of reliability, comfort and savings. A tailored hot water installation backed by prompt hot water repair and solar hot water repair support is worth far more than a rock-bottom sticker price, especially if you ever need a solar hot water tank replacement down the track.
If you are in Exeter and wondering whether a solar hot water system, heat pump hot water system or modern electric hot water system is right for you, now is a smart time to take a closer look. With solid solar resources, a community already investing in efficient hot water, and generous rebates helping with the upfront hot water system price / cost, upgrading can cut bills, reduce emissions and future proof your home. Talk with our trusted local hot water installers and heat pump and solar hot water specialists to get personalised advice for your property and budget, and see which hot water systems Exeter homes are choosing to stay comfortable for less.