Its not pretty, bolts are rusted, glazing is fogged
But dang if it doesn't work
Its up to 111 with the hot tub recirc off
Heating cycle at an end
I expect it to drop at least 3 degrees when I turn the pumps on
And at least 5 degrees overnight
But that means it could stillbe 103 in the morning
I really need to get 1/2 of this heating our hot water
Hey guess what ?
The control panel doesn't work over 106

It was just flashing "HO"
And my wife didn't even have her top off
As I said not pretty
But I did not want to invest in any paint or anything else until I tested it
Plan is to paint it, pick up new screws & new glazing
I think with new glazing one panel can heat each tub
Or I may need to make a small 2nd panel for this tub
The 4x12 against the house is really too big & shades the greenhouse too much
Pic was taken at 3:30, hot tub was 111 & solar heat was shut off
Even with the shading you see on the panels they were putting out 118 degree water
