Has anyone tried a solar water heater in western Washington state?

[OlympicKnight]

Has anyone tried a solar water heater in western Washington state? I am considering FAFCO solar bear 4 x 20. Any recommendations? Thank you.

 

[kevinskii]

I have a solar system in southern CA. It works great when there's sun. On a cloudy day it does nothing. You probably have a few more cloudy days than we do, but it may be worth having anyway. The 4x20 looks to be a great size for the pool you're building, and for what it costs you'd get a great return on your investment even if it only heats your pool 25%-50% of the time.