Hot Water in Merriwa, WA

Hot Water Systems in Merriwa

The 6030 postcode, covering Merriwa, Clarkson, Mindarie, Quinns Rocks, Ridgewood and Tamala Park and surrounding areas, is home to around 15,426 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 Merriwa and the 6030 area, 2,025 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 Merriwa's climate delivering an average of 5.4 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.

Icon

Hot Water Ranking

Postcode 6030

25th

State Wide

108th

Australia Wide

Hot Water Installation Merriwa

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 Merriwa

* Data from the Bureau of Meteorology. Closest station: N/A.

Solar Powered Hot WaterMerriwa

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.

Financial Ad Icon

Want Solar Finance Options?

Compare lenders and get tailored loan offers.

Heat Pump Hot Water Systems for Merriwa

Compare heat pump hot water systems suitable for Merriwa'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 - Merriwa, 6030

Icon

Hot Water Demographics - Merriwa

Based on the Australian Bureau of Statistics 2021 Census (ABS), Merriwa has around 15,426 private dwellings, home to approximately 37,837 people. With an average household size of 2.7 people, and around 50 litres of hot water used per person each day in Australia, Merriwa households use approximately 135 litres of hot water daily, equating to a massive 2.1 million litres of hot water used across the suburb every single day.

Other census insights reinforce Merriwa's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Merriwa community is home to 3,385 couple families with children and 1,115 one-parent families, meaning a large proportion of households face substantial hot water demand. With 7,217 homes owned with a mortgage and 2,877 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.

Merriwa is converting hot water demand to efficient systems faster than many peers, with 13.1% of dwellings already upgraded.

Icon

Hot water systems in Merriwa

Across Merriwa and the 6030 postcode, more locals are rethinking their old gas and electric hot water and switching to modern, energy efficient options. With an average household size of around 2.7 people and more than 14,000 dwellings in the area, hot water is a big part of everyday energy use. Power prices in WA keep creeping up, so upgrading to a smarter hot water system is becoming an easy way for Merriwa homeowners and businesses to cut bills without sacrificing comfort.

Merriwa is well suited to efficient hot water technology. The nearby Tamala Park weather station records around 19.5 MJ/m² of solar exposure a day on average, which works out to roughly 5.4 kWh/m² of sunshine – ideal for a solar hot water system or a high performance heat pump hot water system. Many homes are separate houses with three or four bedrooms, and with a strong mix of families and working couples on a median household income of about $1,825 a week, there is steady demand for reliable, affordable hot water that will not blow the budget.

When you look at system sizes and savings, a typical Merriwa family home using an older electric hot water system can often halve their running costs by moving to a quality heat pump hot water system or solar hot water heating system. Heat pump vs solar hot water is a common question locally. Heat pumps such as Sanden heat pump units or Rheem heat pump hot water systems suit shaded roofs or smaller properties, while roof-mounted solar hot water systems like Rheem solar hot water, Rinnai solar hot water or Chromagen solar hot water work brilliantly on unshaded north or west facing roofs. Many locals ask about the hot water system price or cost and want to know which is the most efficient hot water system for their situation, whether that is a solar hot water vs electric hot water upgrade, or a modern electric hot water system paired with rooftop solar.

Across the 6030 area, around 2,025 efficient hot water systems have already been installed, including both heat pump hot water installation and solar hot water installation. Installations grew rapidly from the early 2000s, peaking around 2007, and have stayed steady since with dozens of new systems going in each year. That steady stream of hot water installation work shows how more Merriwa households are moving towards all electric homes, lower running costs and less reliance on gas. As existing solar hot water tanks age, there is also growing demand for solar hot water tank replacement and solar hot water repair, as well as general hot water repair for older electric units.

For many Merriwa homeowners, the decision now is not electric hot water vs gas hot water, but which energy efficient hot water system to choose. The best hot water system Australia wide for one household might be a compact heat pump, while another family may prefer a larger rheem solar hot water set up. Locals also want clarity on heat pump hot water price or cost and solar hot water price or cost, and how rebates change the numbers. Even a straightforward electric hot water installation can be made more efficient by using timers to run when rooftop solar is generating, turning it into a genuinely energy efficient hot water system.

Hot Water Rebates, Tariffs & Savings

In WA, hot water wa customers are increasingly looking to replace old gas or electric units with heat pump hot water, solar hot water or high efficiency electric systems. Federal incentives like Small-scale Technology Certificates (STCs) apply to eligible heat pump hot water systems and solar hot water systems, effectively working as an upfront discount off the system and installation price. On top of this, state-based schemes and occasional electric hot water system rebate offers can further improve the hot water rebate wa homeowners can access, especially for heat pump hot water rebate and solar hot water rebate programs.

With the right combination of rebates, a quality system and smart controls, it is common for Merriwa households to save hundreds of dollars a year on bills. Payback periods for a best heat pump hot water system or premium solar hot water system can be cut significantly when you combine incentives with existing rooftop solar and use timers or solar diversion to heat water when the sun is shining. For many families in Merriwa, this makes the upgrade to the best hot water system Australia can offer in their budget a very practical decision rather than a luxury.

If your current unit is older, noisy, running out of hot water or costing a fortune to run, it may be time to check whether your Merriwa home is ready for a hot water upgrade. Whether you are moving from gas to a heat pump hot water system, considering solar hot water vs electric hot water, or simply want the most efficient hot water system you can afford, it pays to work with experienced local hot water installers like us who understand Merriwa’s climate, tariffs and homes. With strong solar, a community already investing in efficient systems and growing interest in sustainability, now is an ideal time to cut bills, lower emissions and future proof your home’s hot water. Reach out to trusted local experts for personalised advice on the right hot water systems Merriwa homeowners can rely on for years to come.

Nearby Suburbs

See Also