A solar water heater consists of two main elements of the "sensors" and solar "ball" storage:
-The
"sensors" are laid out and can collect heat from solar radiation to
heat water (They should not be confused with the signs "photovoltaic"
that convert sunlight into electricity).
-The "ball" is installed inside the house. It is used to store water heated by the sensors.
These two elements are connected by a hydraulic circuit.
A solar water heater is not fully autonomous. For the day without sunshine, you need a conventional water heater as backup.
First, we must know if you have a suitable location to install the solar collectors.
The location must be oriented to the south (south-east to south-west)
and be free of shadows cast by trees or other buildings when the sun is
at most low on the horizon (in winter).
The
sensors can be mounted on a roof terrace, on the ground beside the
house or on a wall, and inclined at about 45 ° (30 ° to 60 °) to receive
the most sunlight.