2 How does it work?
The EasySolar system consists of a collector (A) and an insulated storage tank (B)
which contains 100 litres of water. The collector is fitted on the roof and the storage
tank is fitted inside the house.
The sun shines
When the sun shines the collector is heated by the sun. When the collector reaches
a certain temperature a small pump that is incorporated in the storage tank starts
up. This pump circulates the water in the storage tank through the collector and the
heat is stored in the storage tank.
The sun stops shining
When the sun stops shining the pump stops and the water drains out of the collector
through gravity. This prevents frost damage to the collector in winter. When the
temperature in the storage tank reaches its maximum level the pump will also stop.
This prevents the tank overheating.
Hot water is used
When hot water is used, cold water flows into the internal heat exchanger of the
storage tank. This heat exchanger prevents the domestic water mixing with the
water that is stored in the tank but ensures that the cold water is quickly heated up.
From the storage tank the preheated domestic water flows to the combi boiler or to
the hot water cylinder. Because the water has been preheated less energy is
needed to bring the water up to the required temperature. This saves on your
energy bill. If the temperature of the water coming from the storage tank is high
enough it can go direct to the hot water taps. This requires a thermostatic diverter
valve.
