Hot Water Systems in Rocky Hills
The 7190 postcode, covering Rocky Hills, Maria Island, Apslawn, Buckland, Cranbrook, Dolphin Sands, Little Swanport, Orford, Pontypool, Rheban, Runnymede, Spring Beach, Swansea and Triabunna and surrounding areas, is home to around 2,947 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 Rocky Hills and the 7190 area, 73 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 Rocky Hills's climate delivering an average of 3.9 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 7190
39th
State Wide
1570th
Australia Wide
Hot Water Installation Rocky Hills
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 Rocky Hills
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterRocky Hills
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 Rocky Hills
Compare heat pump hot water systems suitable for Rocky Hills'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 - Rocky Hills, 7190
Hot Water Demographics - Rocky Hills
Based on the Australian Bureau of Statistics 2021 Census (ABS), Rocky Hills has around 2,947 private dwellings, home to approximately 3,048 people. With an average household size of 2.1 people, and around 50 litres of hot water used per person each day in Australia, Rocky Hills households use approximately 105 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 Rocky Hills's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Rocky Hills community is home to 145 couple families with children and 52 one-parent families, meaning a large proportion of households face substantial hot water demand. With 342 homes owned with a mortgage and 809 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.
Rocky Hills is converting hot water demand to efficient systems faster than many peers, with 2.5% of dwellings already upgraded.
Hot water systems in Rocky Hills
In Rocky Hills, more households are rethinking their hot water system and moving to efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With an older population, a lot of separate houses and an average household size of around 2.1 people, hot water needs are steady year‑round, but power bills can really sting on a fixed income. Median household income here is under $1,000 a week, so upgrading from an ageing gas or electric unit to an energy efficient hot water system is a practical way to free up cash. Locally, the Swansea (Kelvedon) weather station shows strong sun for Tasmania, with an average annual solar exposure of about 14.2 MJ/m² a day – roughly 4 kWh/m². That level of sunlight makes a solar hot water heating system or heat pump hot water installation a logical next step for Rocky Hills homes looking for lower running costs and better comfort.
Across postcode 7190 there are about 1,486 occupied private dwellings, most of them separate houses and many owned outright. That means a big proportion of locals can choose when to replace their system, whether that is a solar hot water installation on the roof, a compact sanden heat pump in the yard, or a reliable rheem heat pump hot water unit. For some properties, especially holiday homes or rentals, a quality electric hot water installation still makes sense, particularly when paired with rooftop solar and off‑peak tariffs. Homeowners often ask about heat pump vs solar hot water, solar hot water vs electric hot water, and electric hot water vs gas hot water; the right answer depends on your roof space, budget, and how much sun your site gets.
For a typical Rocky Hills household, hot water is one of the biggest energy users. Swapping to the most efficient hot water system can trim a big chunk off your bills. As a guide, average annual savings can look like this:
• Old electric to heat pump hot water system: save around $350–$700 per year. • Gas storage to heat pump or solar hot water system: save roughly $250–$600 per year. • Gas to modern electric hot water system with solar: save about $200–$500 per year. • Old electric to quality solar hot water heating system: save around $300–$650 per year.
Brands like Rheem and Rinnai are popular in the area for both solar and efficient electric units, including rheem solar hot water, rheem heat pump hot water and rinnai solar hot water options. Many locals also look at premium systems such as a sanden heat pump, often rated among the best heat pump hot water system choices in Australia. For solar hot water repair, solar hot water tank replacement or general hot water repair, these brands are well supported, which helps keep long‑term hot water system price and maintenance manageable.
In Rocky Hills and the wider 7190 area, there have already been 73 efficient hot water systems installed, combining both heat pump and solar hot water installations. Install numbers started small in the early 2000s, picked up around 2010 and 2014 with double‑digit installs in those years, and have continued at a steady pace since then with systems going in most years right through to 2025. This pattern shows a clear, growing interest in electrification and lower running costs, as more locals realise that a modern solar hot water system or heat pump can be the best hot water system Australia has to offer for coastal Tasman conditions.
Hot Water Rebates, Tariffs & Savings
Across Tasmania, including Rocky Hills, there is strong interest in replacing old gas or power‑hungry electric units with efficient heat pumps, better electric systems or solar hot water. Federal incentives like Small‑scale Technology Certificates (STCs) help cut the upfront solar hot water price / cost and heat pump hot water price / cost. On top of that, state‑based heat pump hot water rebate and solar hot water rebate offers, plus an electric hot water system rebate in some programs, can reduce the system cost by a substantial percentage. When you combine these hot water rebate TAS options with off‑peak tariffs, timers or solar diversion, many homes see hundreds of dollars a year off their bills and payback periods that shrink to just a few years. For many Rocky Hills properties with good sun, a chromagen solar hot water or similar high‑quality solar hot water system, paired with rooftop solar, can be the most efficient hot water system choice over the long term.
If you are in Rocky Hills and your current unit is old, noisy or running out of hot water, now is a good time to check whether your home is ready for a hot water upgrade. Whether you are moving away from gas, comparing heat pump vs solar hot water, or looking for the best mix of comfort and savings, working with experienced hot water TAS installers who specialise in heat pump hot water installation, solar hot water repair and electric hot water installation makes all the difference. With strong local solar exposure, a community already investing in efficient hot water, and generous hot water rebate TAS incentives, an upgrade can help you cut bills, lower emissions and future‑proof your home. Connect with trusted local experts for personalised advice and find the right hot water system price and setup for your Rocky Hills property with us.
