There are so many solar geyser systems on the market, but are they all just hype? If you’ve been lying near the pool recently (or mowing the lawn), you’ll know that we have an abundance of sunshine in South Africa. Why ignore a free resource when you could be using it to cut costs in your home, dodge load shedding and protect the environment?
It needn’t be an exorbitant or messy changeover from your current system to a solar geyser, but let’s start with the basics:
The cold water from the house is fed through the collector pipes on your roof, and the sun heats it. It then creates a flow of water to and from the tank. As the natural laws of heat and cold apply, the hot water rises to the top of the tank, while the cold water sinks to the bottom. The outlet tap is positioned on the top of the tank ensuring that hot water is always on tap.
This circulates the household water in the geyser tank through the solar collector. The collected heat is then transferred directly to the household water supply. This eliminates the need for a heat exchanger and the use of heat transfer fluid.
The solar water heater circulates a transfer fluid, other than water, through the solar collector. The collected heat is then transferred indirectly to the household water supply using a form of heat exchanger. The lifespan and quality of these systems are far superior to the direct systems and are highly recommended by Solterra Cape/West Coast.
This system can be installed on any roof type and no pump is needed, as long as the geyser tank is higher than the solar panel. The system makes use of a process called Thermo Siphon to move the liquid between the tank and panel. Thermo Siphon is the effect created when hot water rises out of the panel and pushes the colder liquid in the geyser into the panel.
For this system the solar panel is on the roof and the geyser is inside the roof. Small solar powered pumps are used to circulate the water or glycol mix around the system. It cannot be installed on flat roofs and there must be access to service the geyser.
Solterra Cape/West Coast has just landed a container of our imported NOBEL Tier 1 highest quality Solar 200 l & 300l Solar Geyser System in Cape Town. These quality systems come with a 10-year warranty period with a 20-year extended warranty option if maintained by our company on an annual basis. These systems give the highest return on investment of any solar geyser in the market in South Africa today.
Please contact us for a quote.