Hot Water Systems in Redhill
The 5521 postcode, covering Redhill and surrounding areas, is home to around 83 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 Redhill and the 5521 area, 8 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 Redhill's climate delivering an average of 5.1 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 5521
289th
State Wide
2393rd
Australia Wide
Hot Water Installation Redhill
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 Redhill
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterRedhill
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 Redhill
Compare heat pump hot water systems suitable for Redhill'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 - Redhill, 5521
Hot Water Demographics - Redhill
Based on the Australian Bureau of Statistics 2021 Census (ABS), Redhill has around 83 private dwellings, home to approximately 138 people. With an average household size of 2.1 people, and around 50 litres of hot water used per person each day in Australia, Redhill households use approximately 105 litres of hot water daily, equating to a massive 0.0 million litres of hot water used across the suburb every single day.
Other census insights reinforce Redhill's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Redhill community is home to 6 couple families with children and 3 one-parent families, meaning a large proportion of households face substantial hot water demand. With 10 homes owned with a mortgage and 34 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.
Redhill is converting hot water demand to efficient systems faster than many peers, with 9.6% of dwellings already upgraded.
Hot water systems in Redhill
In Redhill, 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 a small, mostly owner‑occupied community and an average household size of around 2.1 people, hot water is a big chunk of the power bill for many homes. Median household incomes sit under $1,000 a week, so cutting running costs without sacrificing comfort just makes sense.
Redhill’s climate is ideal for an energy efficient hot water system. The town enjoys strong sun, with average annual solar exposure of about 18.2 MJ/m² per day – roughly 5 kWh/m²/day – which is perfect for a solar hot water heating system or a high‑performance heat pump hot water system that draws warmth from the air. With many residents owning their homes outright, upgrading from older gas or off‑peak electric units to the most efficient hot water system is a logical next step, delivering meaningful annual hot water energy savings.
Across the 5521 postcode there are only around 61 occupied private dwellings, so every efficient hot water upgrade makes a visible difference to community energy use. Hot water can account for a quarter or more of household electricity, especially in smaller homes with two or three bedrooms like those common in Redhill. Moving from an old storage unit to a modern system can dramatically cut this share.
Typical annual bill savings for Redhill households can look like:
• Old electric to quality heat pump: save around $350–$700 per year. • Gas to heat pump: save roughly $250–$600 per year. • Gas to solar hot water: save about $250–$550 per year. • Old electric to modern electric with rooftop solar: save around $200–$500 per year.
Brands such as Rheem heat pump hot water and Rheem solar hot water are popular for reliable, well‑supported systems, while Sanden heat pump units are often chosen as some of the best heat pump hot water system options in Australia for efficiency and quiet operation. Rinnai solar hot water and Chromagen solar hot water also appear on local roofs where owners want a robust solar hot water tank replacement tied into existing or future solar PV. Comparing heat pump vs solar hot water, many Redhill homes with limited roof space lean towards heat pumps, while larger blocks with good north‑facing roof area are ideal for a full solar hot water installation.
Recent installs in Redhill show this quiet shift. There have been 8 efficient hot water installations recorded in the postcode, combining both heat pump hot water installation and solar hot water installation jobs. Installations peaked in years like 2003, 2008 and 2011, and while there has been a lull since, interest is rising again as power prices climb and more people talk about electrification and getting off bottled gas. Each new hot water installation or hot water repair that upgrades to efficient tech helps lower running costs and future‑proofs the home.
Hot Water Rebates, Tariffs & Savings
Around Redhill SA, more households are now considering whether solar hot water vs electric hot water or electric hot water vs gas hot water will give them the best long‑term savings. The good news is there are strong incentives. Australian Government Small‑scale Technology Certificates (STCs) apply to approved solar hot water systems and heat pump hot water systems, effectively acting as an upfront discount off the solar hot water price / cost or heat pump hot water price / cost. South Australian programmes can also offer a heat pump hot water rebate or solar hot water rebate, and in some cases an electric hot water system rebate for efficient models, cutting the hot water system price / cost by a substantial percentage.
For many Redhill homes, combining rebates with rooftop solar can trim hundreds of dollars per year from bills, with payback periods often dropping into the 3–7 year range depending on usage. Using timers or solar diversion to run an electric hot water installation during the middle of the day can push savings even further. With the right setup, a solar hot water vs electric hot water comparison usually shows solar or heat pumps well ahead over the life of the system.
If you live in Redhill SA and your current unit is old, noisy, or running on gas, now is a smart time to check if your home is ready for a hot water upgrade. Whether you are leaning towards a rheem solar hot water package, a sanden heat pump, rinnai solar hot water or another of the best hot water system Australia options, working with experienced local hot water SA installers matters. With Redhill’s strong sun and growing interest in sustainability, an energy efficient hot water system can trim bills, cut emissions and make your home more comfortable for years to come. Connect with trusted local experts for personalised advice on hot water repair, solar hot water repair, solar hot water tank replacement and new efficient systems, and see what hot water rebate SA options you may be eligible for.