We have a swim spa, about 10m3 and a problem with upgrading the electricity to heat it, so I have no choice but to try and solar heat it.
I have bought some tube and am going to do it like this on the roof http://i.ytimg.com/vi/Q-LJNsvpVKI/hqdefault.jpg but not sure if it is the best way as I have seen many like this http://www.reuk.co.uk/OtherImages/co...-collector.jpg I have about 22 m2 of roof space to use and I guess i can fit in a total of 300 linear meters of tubing.
Question #1, is this OK. I have a few days to decide, so apologize for not looking thoroughly through the site
Question #2, The good news my place is in the Canary Islands and has a lot of sun, but the winter time temperatures are approx 22 C by day and 14 C by night. My builder was saying I will have to turn the panel off in the winter months. IS this so?
Question #3 I am wasting my time using this method at all?
I have bought some tube and am going to do it like this on the roof http://i.ytimg.com/vi/Q-LJNsvpVKI/hqdefault.jpg but not sure if it is the best way as I have seen many like this http://www.reuk.co.uk/OtherImages/co...-collector.jpg I have about 22 m2 of roof space to use and I guess i can fit in a total of 300 linear meters of tubing.
Question #1, is this OK. I have a few days to decide, so apologize for not looking thoroughly through the site

Question #2, The good news my place is in the Canary Islands and has a lot of sun, but the winter time temperatures are approx 22 C by day and 14 C by night. My builder was saying I will have to turn the panel off in the winter months. IS this so?
Question #3 I am wasting my time using this method at all?

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