It just seems the responsible thing to do to promote a picture of a solar geyser installation. Although their market share is not yet very significant, it is growing on a daily basis. If you are in the market place to replace yours, you should do the right thing and investigate the ‘green option’. Dial A Contractor’s geyser / boiler repair and installation contractors will assist with all the up to date information – you choose.
For those of us who are restricted by body corporates and aesthetic housing or security estate regulations, it will be easier to stick to the old fashioned attic mounted boilers. When installing a new hot water cylinder or solar water heating system be sure to ask about service maintenance and part availability, as these days there are far to many makes and models of everything including water boiler options. Imports may seem cheap until the smallest thing goes wrong, then they become disposable and your credit card takes another bending because you fell into the ‘no-name’ trap. Dial A Contractor’s water heater installation and repair specialists will only recommend tried, trusted and reliable geysers and water heaters be sure – stick with Dial A Contractor.
SOLAR CONVERSIONS FOR EXISTING HOT WATER SYSTEMS
In some cases your existing hot water system can be converted to a solar system by retrofitting the hot water cylinder with one or more solar collectors. Not all hot water systems are suitable for conversion – our engineers will be able to advise you on this option.
SOLAR PANELS AND GEYSERS
We offer a range of systems to suit your specific needs and your pocket. From complete solar systems to solar conversions for your current electric geyser or hot water system. Our systems are SABS approved; many of them qualify for Eskom rebates.
The solar panel and geyser are the main component of the solar water heating system. The panels are referred to as solar collectors. We install two main types of solar collectors – the flat plate collector and the evacuated glass tube collector.
The flat plate solar collector is the more traditional type of collector that has been around for many years. Typically this collector consists of a flat copper plate with copper pipes running over it, encased in a chromadek frame and covered with a sheet of 4mm tempered glass. This design has been around for over 30 years in countries like Australia that have a similar climate to South Africa. These panels have a proven track record and have been used extensively in South African with great success.
The evacuated tube solar collector is a newer type of collector that has created a lot of excitement in the market with its innovative design and efficiency in absorbing heat. It consists of a series of glass vacuum tubes assembled into a panel and connected either straight into a hot water tank, or first to a manifold and then to a hot water tank. Each vacuum tube consists of two glass tubes, the outer tube is transparent, while the inner tube is coated with a special substance that maximises the absorption of solar radiation. The tubes are fused together at the top and the air is removed to create a vacuum.
The solar panel works in conjunction with a geyser that stores the hot water. It is preferable to use a solar geyser, however, certain electric geysers are suitable for conversion. Solar geysers are specifically designed for use in a solar system. They can withstand the high temperatures that may be produced by solar water heating systems, they are also very well insulated and include extra connection points for the solar collectors. Electric geysers on the other hand need to be converted before they can be used in a solar system, and they are not as well insulated as solar geysers.
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