The figures are pretty comparable between the above collectors, yielding some 4 kWh/day in a temperate weather and a few eight kWh/day in a tropical weather high pressure solar geyser while the usage of a collector with a 2 m2 absorber.
within the temperate situation this is enough to warmth 200 litres of water by some 17 °C. in the tropical scenario the equal heating could be with the aid of some 33 °C. Many thermosiphon systems have similar power output to equivalent lively structures.