Solar water heating is not what you would call a technological ingenuity. In fact, solar heating panels can be installed relatively easy helping you save money and energy.

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Solar heating systems are generally composed of solar thermal collectors, a fluid system to move the heat from the collector to its point of usage, and a reservoir or tank for heat storage and subsequent use.

Solar water heating can be used for your home, to supply daily water needs, but also for larger projects such as your swimming pool.

According to Energy Saving Trust, there are three major methods of using this kind of alternative energy to get domestic hot water:

  • Solar panels or collectors - are fitted to your roof. They collect heat from the sun’s radiation. There are 2 main types of collector:
    • Flat plate systems - which are comprised of an absorber plate with a transparent cover to collect the sun’s heat
    • Evacuated tube systems - which are comprised of a row of glass tubes that each contain an absorber plate feeding into a mainfold which transports the heated fluid
  • A heat transfer system - uses the collected heat to heat water;solar
  • Hot water cylinder - stores the hot water that is heated during the day and supplies it for use later.

Solar water heating can provide you with about a third of your hot water needs. The average domestic system reduces C02 by around 325kg per year and about $450 a year of your hot water bills, when installed in a gas heated home. Just imagine how much we could save if we all cheeped in!

Of course, a problem arises: installing such a device can cost up to 5000 US Dollars. However, when considering the benefits, this sum is not all that huge.

As you see, the results of installing a device like this are amazing: a typical system reduces the need for normal water heating, therefore reducing the costs of electricity or fuel and also the negative impact on the environment.

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