I will share my research, and ideas about Tesla work, on my web: http://free-ri.htnet.hr/Branko/index.html (http://free-ri.htnet.hr/Branko/index.html)
You are welcome.
That is just excellent work. It would be really nice to see one years (or even winter) temperatures of that water tank. Temperature logger gatherin the water temperature, for statistics. Or just manual measurements cause the temp. does not change wery fast anyway.
Have you done any logging?
Last year (I only catch after-summer sun, because 2 months build works). It has temperature 25 C. Last week it was 12 C. Water from pipe was 9 C. All winter was about 5 C more than in pipe (it was good for water heaters, but not for heating leaving space). This summer I will know more. Right now is sunny week, and in collector was from 35 to 40 C (pump work is about 6 hour/day for collecting), and yesterday was 16 C in my thank (4 C more). For 1 C temperature, now I need 2 days (sunny day in April, air temperature from 14 to 18 C). It is 24000 liters of water in tank. I will put more when summer comes. Every 1 C is around 30 KWh of energy (if I collect 4 C, it is around 120 kWh). I think it is very nice! I can't wait summer...(and next winter too). Energy bill will tell me the truth.