Solar geyser componentSolar geysers can be constructed from various metals or composites as used in electric geysers. The major differences is that they are better insulated and are rated for external installations as there electrical components are water tight and there outer casing is more durable. They come in various capacities and pressure ratings and can be either direct or indirect. Indirect can be either double jacketed or fitted with a heat exchanger. A double jacketed geyser has two layers, the inner cylinder stores the water and the outer cylinder protects it from the outside conditions
Flat plate collector (Solar Panel)
These are the most common types of collectors and generally more suitable to local weather conditions. A rectangular box of varied size that incorporates an absorber plate that, transfers heat into the fluid which runs within a network manifold. The fluid can be either water (direct) or Glycol (indirect systems). The collector is generally covered with toughened glass which is hail resistant. They work in direct relation to their size and where they are situated.
Evacuated tube collectors
These tubes are of annealed glass construction of various thicknesses, and developed for use in predominantly colder climates. Many different types are available. The most common being the heat rod type. Evacuated Tube solar water heaters are made up of rows of parallel, glass tubes fitted either to a manifold or directly into the solar geyser.
The Evacuated tube collectors reach hotter temperatures than flat plate collectors which results in the system discharging water to reduce the temperature within the system.