Solar Hot Water FAQ
Australia is a leading market for solar hot water systems globally – and it’s easy to see why. With some of the highest solar radiation levels in the world, Australia is perfect for harnessing solar energy. Solar hot water systems use this abundant sunshine to heat water, helping you save money and cut down on carbon emissions every year.
Thinking about making the switch to a solar hot water system? You’ve come to the right place to get started. Drawing on our years of expertise, we’ve compiled and answered the most frequently asked questions about heat pump technology.
Rather speak to someone? Not a problem. Our team of energy experts is ready to assist you. Give us a call on (03) 9070 0707. We’ll help you to understand the benefits of heat pumps and guide you towards a more energy-efficient future.
Let’s work together to reduce your energy costs and carbon footprint!
The Basics of Solar Hot Water
What is solar hot water?
Solar hot water is a way to heat water using solar energy. This system collects sunlight through the solar panels, which heats the water in your tank. This heat is then used to warm up water that can be used for showering, washing dishes, or even heating your home.
Why choose solar hot water?
Solar hot water is a great choice because it’s a sustainable energy source. It uses the sun’s energy to heat your water, so you don’t have to rely on fossil fuels or electricity.
Using this water heating system, you won’t have to pay for electricity, and your energy bills will be reduced. Also, solar panels are affordable and can last for many years.
It produces zero emissions, so you’re not contributing to climate change. Plus, it’s a great way to reduce your carbon footprint.
What types of solar hot water systems are available?
Several types exist:
- Flat Plate: Common in Australia, known for reliability and efficiency.
- Evacuated Tube: Offers enhanced performance, particularly in cooler climates.
- Roof-Mounted: Both collectors and tank on the roof, suitable for homes with adequate roof space.
- Split System: Collectors on the roof, tank on the ground, often near areas of high hot water use.
- Heat Pump: Uses ambient air to heat water, requiring minimal electricity and no solar panels
What is the difference between a solar PV panel and a solar hot water system panel?
A solar PV (photovoltaic) panel converts sunlight into electricity. It’s made up of special cells that turn sunlight into DC power. This power is then sent to an inverter, which converts it into usable AC power for your home or business.
On the other hand, a solar hot water system panel uses solar energy to heat water. The panel absorbs sunlight and transfers it to a storage tank, which keeps the water warm and ready for use.
Which system is best for me?
When deciding which system is best for you, consider your personal preferences, budget, water consumption, and location.
A heat pump system provides hot water and heating your home. It transfers heat from one place to another rather than generating heat from scratch.
If you want to be more self-sufficient, solar panels with a battery can store excess energy for later use. This system is ideal for homes with high energy needs or wanting to be off-grid.
Solar Hot Water - Operation
Will I ever run out of hot water?
One advantage of our hot water systems is that they can save up to 80% on your electricity bill. Indeed, depending on the system type, your solar hot water system will heat the water to a level equivalent to two-thirds of the ambient air temperature on a clear sunny day. Solar hot water systems will continue operating during cloudy weather, providing a continuous hot water supply.
Will my system work in overcast conditions?
Your solar hot water system can still work in overcast conditions. The system will produce less hot water on cloudy days than on sunny days, but it will still be able to provide some hot water, especially in the morning and evening when the sun is weaker.
What can I do if my roof is flat?
Even a flat-roofed home can benefit from solar hot water. We mount solar collectors higher and grab that solar potential with flat roofs in a big way.
Does solar hot water work at night?
Yes, solar hot water works at night, too! They store heated water during the day so you can use it at night or early morning.
Is solar hot water safe and reliable?
Solar hot water is a safe and reliable way to heat water. The system uses special panels to collect sunlight, which heats the water in your tank. This method is eco-friendly, energy-efficient, and low-maintenance. It’s a great way to reduce your carbon footprint and save money on utility bills.
Are solar hot water systems weatherproof?
Yes, solar hot water systems are designed to be weatherproof. They are built with durable materials and have special coatings to withstand harsh weather conditions like rain, snow, and extreme temperatures. This ensures the system continues functioning properly and efficiently throughout the year.
How long will my solar hot water system last?
A well-maintained solar hot water system can last 20-25 years. The solar panels and storage tanks are designed to withstand outdoor conditions and regular usage. With proper maintenance, you can expect your system to provide hot water for years!
Will my system be covered by home building insurance?
According to Carbon Savers, their home building insurance does not specifically cover solar hot water systems. However, we provide rebates, including Small-scale Technology Certificates (STCs), the NSW Energy Saving Scheme (ESS), the Victorian Energy Upgrades Program (VEU), and Solar Victoria.
Solar Hot Water: Performance and Savings
What size system should I install?
The ideal solar hot water system size depends on your household’s hot water needs. Consider factors like the number of occupants, shower frequency, and water usage habits. A general rule of thumb is to install a system that can provide hot water to households that can accommodate up to 4 people with a system size of between 250-280L, while those that can accommodate 4-to 8 people should go for systems of 300-400L.
How much money can I save?
Installing a solar hot water system can save you up to 80% per year on energy bills. Solar water heaters use free energy from the sun to heat your water, reducing your reliance on traditional fossil fuels.
What are the environmental benefits?
Switching to solar hot water can reduce household water heating emissions by up to 90%. Given that water heating accounts for a significant portion of household emissions, this change has a substantial environmental impact.
How long before my system pays itself back?
A solar hot water system typically pays back depending on its size, usage, and location. Contributing factors include system size and efficiency, daily hot water usage, local climate and sunshine hours, energy prices, and savings. Contact our experts to learn more.
Are government incentives and rebates still available?
Government incentives and rebates are still available for solar hot water systems. These incentives can help reduce the upfront installation cost, making solar hot water more affordable and accessible. The best way to determine how much rebate you can expect is by speaking with one of our energy specialists.
Solar Hot Water: Installation
How do I purchase a solar hot water system?
You should visit the Carbon Savers website or store to purchase the solar hot water system. The installation team will assess and discuss your requirements. Then, they will choose a suitable solar hot water system for your needs. They will provide a quote and wait for your confirmation. Upon confirmation, the team will visit your house and install the system.
What size system do I need?
System size depends on household hot water needs. Generally, smaller households (2-4 people) require 250-280L systems, while larger households (4-8 people) may need 300-400L systems.
What payment options do I have?
You can choose various payment options, including credit card, debit card, bank transfer, online payment, cheque, and government rebates.
How long does it take to be installed?
Installing a solar hot water system typically takes a few days, depending on its complexity and the number of components involved. The process usually consists of mounting the solar panels, connecting the system to the water heater, and ensuring proper plumbing and electrical connections.
Will I be without hot water for long?
You will likely be without hot water for a few hours while installing a solar hot water system. The installation typically involves disconnecting the old system, replacing any necessary components, and connecting the new solar system.
Will my roof be strong enough to support the system?
Your roof’s strength depends on age, material, condition, and design. You can contact a professional to assess your roof’s suitability for a solar hot water system.
Solar Hot Water: Post Installation
How often should I have my solar hot water system serviced?
It’s recommended that your solar hot water system be serviced every 2-3 years. This helps ensure it’s running efficiently and effectively and can identify potential issues before they become major problems. Regular servicing can also help extend the lifespan of your system.
Why is the PTR (Pressure Temperature & Relief Valve) leaking so much?
A PTR (Pressure, Temperature, and Relief Valve) can leak excessively due to incorrect installation, worn-out seals, or faulty valve operation. To prevent leaks, it is essential to inspect the valve regularly, replace worn-out parts, and ensure proper installation.
My water has gone cloudy or discoloured; what does this mean?
Several factors, including sediments, minerals, or bacteria, can cause cloudy or slightly discolored water. Sediment may give the water a murky look. Minerals give the water a yellowish or brownish color if the discolouration is associated with a foul smell that indicates bacteria might have developed. The best way to get the correct advice and solution is to talk to your water authority.
Can I reduce water temperature to save money?
Installing a tempering valve can cap your hot water temperature, potentially reducing energy consumption and preventing scalding.
What else can I do to cut my energy bills?
Reduce your energy bills by switching to LED bulbs and turning off lights, electronics, and appliances when not in use. Adjust your thermostat, use power strips, and upgrade to energy-efficient appliances. Insulate your home, seal air leaks, and consider solar panels or energy-efficient windows.
Are government rebates available?
Yes, most states offer rebates that can significantly reduce the initial purchase price. Contact us for information on rebates in your area.
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