Has anyone had any experience using an evacuted-tube solar water heater?
How well do they work? In bright sun summer days? Too hot?
What about cloudy Oregon winters? Too cold?
Pumping water thru them? Too expensive?
Brands, pumps, sizes?
I am considering adding as heat source for my soon to be installed
Doughboy 24' round indoor pool. I need to maintain about 90 degrees year round.
I live in the Willamette Valley, Oregon. Aka, the winter home of the Rain gods.