[permaculture] any biologists out there?

georg parlow g.parlow at gmx.at
Sun Dec 20 11:46:39 EST 2009


according to my sources the water only needs to be heated shortly  
above 70 deg celsius (or longer periods over 60 deg celsius) - any  
decent solar system can provide this without sweat.

georg


> Once we get our heads wrapped around the particulars, we might be able
> to figure out solutions so that existing simple systems can work
> safely.
>
>> Sometimes simple isn't the right solution.





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