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Is Solar Hot Water Worth It?

Updated: Feb 8, 2023


Did you know Vietnam has great potential in very high solar radiation?

So, what if we said you could use the sun to heat water for showers, washing and other activities?

With solar hot water, you can. Plus, enjoy the extra benefits of:

  1. Significant savings on your hot water energy use

  2. Reducing your carbon emissions to do your bit for the environment; and

  3. Potentially increase the value of your home

In this article, we will explore these three key benefits in greater detail, and debunk some key myths associated with solar hot water. However, before we do, we will explain the difference between solar hot water and solar power (also known as solar photovoltaic or PV) to give you more of an idea of how they work.


Solar Hot Water vs Solar Photovoltaic (PV)


When talking about solar, people often associate this technology with solar power, sometimes forgetting that there are other ways to use the sun for its energy. Most solar water heaters use roof-mounted solar collectors to heat your water, and a storage tank to keep it hot and ready for use when you need it.


But how does this work? It's a simple principle; hot water rises. As the sun heats the water in the solar collectors, the increase in temperature causes the water to rise and move through an insulated pipe into a storage tank. As a result, you are taking advantage of abundant sunshine for your hot water needs instead of relying on the electricity grid or gas network. This type of solar technology is known as Solar Thermal.

Benefits of Solar Hot Water

Solar Hot Water has many benefits that play a key role in providing peace-of-mind to Australians.

1. Don’t spend more money on heating water than you should

The hustle and bustle of everyday life can make it easy to overlook additional ways to save money.

At Solahart, we think it makes good sense to start your solar journey by reducing the amount of energy you use. Installing a solar hot water system is a great way to minimise the energy you consume from the grid or gas network by using the sun to produce the hot water your home requires.


Then, when you’re ready, add a solar power system and start producing your own energy to save even more. Key stats and facts:

  • Conventional water heaters typically make up around 25%2 of a household’s energy use in Australia. Therefore, by replacing with a solar water heater, you could make a big difference to your energy use.

  • If you replace your current gas or electric water heater with a solar water heater, you could save up to 65%3 of your hot water energy use.

  • Solar water heaters are cost-effective, reliable, and use proven technology developed right here in Australia and pioneered by Solahart back in 1953.

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