Comparing Pool Heating Options

[solar]

Yikes! I didn't even think about water lines, I guess they are in the attic? About the AC approach, according to the Link removed by mod there is some kind of control that only heats the pool when it needs heat. But I can't find any reviews on this product and that makes me worry. I know solar is totally the best choice but all of the good parts of my roof (only the north facing side is available) are used up by solar PV, meaning I would have to put the solar pool heating panels on the ground. I would like to avoid that if possible.

Edit by Watermom: I removed the link so I could mod your post in. Links within a post really slow down the moderation process.