Solar panel is back against the house, very little shading of the greenhouse
I installed supports & a post & installed the 2nd solar panel
1st water coming out was 140 degrees
After the system ran for a while the output dropped to 94/7
With clouds it dropped now & then down to 82-89
Over a 6 hour period it brought the temp from 56 degrees up to 75.6
That's 450g of water heated 19 degrees
Looks like this will work nicely
Scattered showers expected over the next 2 days
So maybe min heating, then 3 days of sun after that
Hoping to get the Temp up over 80
Then it will make a nice warm pool to cool off & relax in
And as a plus its keeping sun off the roof part of the greenhouse
Which will keep the temps down