How does a Solar Geyser work?

Solar water geysers rely on warm water rising, better known as convection. Convection happens when the water stored in the panels heats up and rises into the water tank above (usually in the ceiling). The hot water in the tank then moves into the cylinder, usually located inside the house.
Meanwhile, the cooler water in the tanks flows downwards into the absorber (collector). These actions create circulation.
If the solar geyser is in the ceiling and at a lower level than the panels outside on the roof, then convection will not take place and a circulating pump is required to circulate the water between the tank and panels.

With the focus on supplying quality products, Project pumps uses only Solartherm geysers for all installations. The Geyser comes with a standard 2 kW element and a 10 year guarantee for peace of mind.

Types of Solar Geysers

There are two different options when it comes to how the solar water geyser will be connected to your home. If it is a frost prone area that you live, you’ll need an indirect solar water heater. Areas that don’t suffer from frost would use a direct solar geyser.

• Direct: the water moves through the solar collector and then directly into the geyser with the assistance of electrical pumps and controls. If not, it can be done via a natural thermosiphoning
• Indirect: unlike the direct solar water geyser, the indirect solar water geyser has a solar collector that transfers a heat transfer fluid such as antifreeze. Thereafter, the antifreeze flows through the heat exchanger, which is surrounded by water. The water receives the heat from running past the antifreeze (it never mixes with it).

With the focus on supplying quality products, Project pumps uses only Solartherm geysers for all installations. These geysers come with a 10 year guarantee for peace of mind.

All Solartherm geysers have a PEX lining. This is basically a plastic lining on the inside of the boiler vessel. This lining has the following advantages:

• It is extremely flexible and expands/contracts better than conventional boilers when experiencing the higher temperatures associated with solar installations.
• The PEX lining (polyethyline) makes the geyser suitable for all water types.
• Prevents the necessity of a sacrificial anode.
• Stops lime scale from building up on the inner walls of the boiler. The scale can simply be flushed to waste from time to time through the drain cock.