How it works:
1). The operation of the solar collector is very simple;
2). Solar absorption: solar radiation is absorbed by the vacuum tubes
and converted into heat energy;
3). Heat energy transfer: heat pipes conduct the heat energy from the
vacuum tube to the header copper pipe of solar collector;
4). Heat energy storage: water is circulated through the header copper

pipe of solar collector, via intermittent pump cycling. Each time the water

circulates through the header copper pipe, the temperatures is raised by 5-10°C.

Throughout the day, the water in the tank is gradually heated.