At Greencon know have the solution for small scale solar water heating or for the 4x4 fraternity of consumers
Have a look:
What are the specs?
Raises that container of water to 55degrees C, by 3pm during winter tests
Where is it cost effective?
Camping and 4x4 fanatics
Rural Communities, where there is no running water. The added bonus is that the collector can later be linked to a solar geyser when services are provided in whatever region. So the investment is not wasted when development improves
Check Price List Here