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Posts Tagged ‘solar geyser’

If you have been living in South Africa in the last 15 years, chances are very good that you’ve been hearing about solar and renewable energy. Corporate companies such as Eskom and Government has been urging people to use electricity wisely and conserve wherever possible. Eskom has even gone as far as to subsidize solar geysers for South African households in an effort to raise the nation’s participation in saving electricity. But what is a solar geyser? And what benefit does it hold for the everyday South African household?

Solar water heating, or solar hot water is water heated by the use of a solar geyser. A standard solar geyser generally consists of a solar thermal collector, a water storage tank and a fluid system to move the heat from the collector to the tank. Solar water heating works by expressly heating liquids through the sun’s power, and no electricity is directly generated. It may perhaps use electricity for pumping the fluid, and have a reservoir or tank for heat storage and later use. The water heated in this way may be used in a variety of ways such as for heating swimming pools, under-floor heating or even power input for space heating.

The water moves around a solar heating system either by passive circulation, or by means of pumps (forced circulation). In passive circulation, the water heats up in the collector and rises naturally into the storage container above it, while the cooler water in the storage container flows down to the bottom of the collector, creating an unaided circulation. In order for this system to work effectively and to avoid reverse circulation at night the collector must be placed below the geyser. This sort of system can be supplied with an inherent freeze resistance by using a closed circuit between the collector and the geyser. Forced circulation systems work with a pump that keeps the heat transfer fluid circulating between the collectors and the heat exchanger in the storage container. The pump itself is controlled by a differential controller. The pumps in forced circulation systems are small, and thus do not need or use much power.

ENSAV is a new lead-generating system for energy saving solution suppliers such as solar geysers, solar pool heating, heat pumps and more. ENSAV will find you multiple quotes from one query, and there is a great ratings system in place to help you the client find the best service provider the first time, every time.

ENSAV also has a huge variety of news, articles and videos in an information portal to help educate the prospective client on the different systems, their advantages and disadvantages. Eskom recently doubled the rebates for solar geysers, which means it is becoming much more viable to have one installed. Lawnmakers are also pushing to make solar geyser installation compulsory in new buildings and when a geyser needs replacing. Some insurance companies already have cover available for a solar geyser installation when replacing a faulty geyser.

Visit ENSAV at www.ensav.co.za to compare competitive quotes.

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