I have a very large amount of water (55,000 gallons) that needs to be heated. Is it remotely possible to use solar panels to heat it? It does have a cover, so it shouldn't lose too much heat. We used to have a gas furnace, but it broke last year and the water is not likely to get to swimming temperature any time soon. It's around 45 degrees Fahrenheit right now. I wanted to try to build my own solar panels, but I don't have the knowledge or time to do it. Does anyone know a pre-made system that is affordable that would be able to support such a large volume of water? I know I'd need a lot of panels, but is there a limit as to how much water can actually be heated that way? Thank you!