I'm getting PV installed on my roof and the company i'm about to contract does Solar Pool heaters as their primary business. They're quoting $4k to install 500 Sqft system on my north facing roof. Another $500 if my system require a controller which I'll most likely need. My South and West roof is going to be used for my PV.
I think I spend about $125 a month in just heating the pool during the summer. I was told to expect an average of 80-85 degrees pool temp between May/June to about Sept.
I also have a gas heater. So we can use it in conjunction of the solar heater. We like our water around 90 degrees.
Wondering if it's worth it. for 4k it sounds pretty expensive.