I was thinking of 10-15mm plastic fish friendly pipe gravity fed from filter to settlement chamber.
Insulated box with glass cover, matt black pipes.
cost nothing to run.
My back of the fridge thig produced hot water and steam.
ps
:not enough room for the wind turbine and they reckon you need 10mph average wind speed, well when we get the gusts of 30-40mph near Gatwick the average is only 10-14mph and it is not that often we get those gusts!
So wind generation is no-where near what we need where I live.
I did think about it but having a weather station that they use in north and south poles(vantage pro2) it is fairly acurate in saying that there is no point in you having a wind turbine!!!
My question is this... there are arguements that the backing should be silver or matt black
matt black to collect more heat into the box or silver to reflect the suns rays from the back of the box back onto the black matt tubes.....
So until I find the answer I will not build it but just collect the parts...
bearing in mind I am not talking solar voltaic cells but solar water heating which needs real sunlight to work.
but in the uk you will need to really watch the winter as you could be making a very efficent fridge unit!
What do you mean by this???????