What is this system on the roof?

[na]

 Can someone please tell me what is that system on roof ???

[Brad]

Looks like a solar pool heater.

[redracer01]

Looks like a "Sunbather"  model swimming pool solar heater.

[JDE]

Looks like a pool hot water system. 

I have seen this type of tubing used before for the purpose of heating a pool. Ususally attached to a small cycling pump at the pool end. Run during the day to heat or at night to cool.

James

[na]

Thank you very much for your help Brad,redracer01 and JDE.

[Jason]

Hi @na,

Great to see some Workshop members provide prompt assistance to you. Feel free to post again anytime you need a hand with a project around the house or garden. We have helpful members sharing advice and inspiration on the site every day. 

Welcome to the community,

Jason