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Hello Lgll,
These are three films on both low cost low-tech and hi-tech solutions that may be of use to be aware of for some of the differing climatic conditions. There are many other solutions on Youtube.
Best wishes,
Peter J Hughes
https://www.youtube.com/watch?v=sJJh3AQ_u6U
https://www.youtube.com/watch?v=rDXWK5GRaiQ
https://www.youtube.com/watch?v=HMe7m56jMIg