Solar Hot water system (thanks to forum, Warpspeed and others)

Author	Message
Murphy's friend Guru Joined: 04/10/2019 Location: Australia Posts: 678	Posted: 08:26am 25 Dec 2022       Age isn't the problem Mike (I'm 77) but hand and arm strength is. You might get a little fitter winding a decent size toroid. Just take your time. I did all my winding sitting down with plenty of breaks to admire my handiwork . I would not wind a stacked core if the blank hole was smaller than 90mm. 100mm is much better, especially if you plan to use heavy insulated welding cable for the primary. Good idea to test the caps, I did leakage tests at their rated voltage and discarded those which were too bad for my liking. Biggest problem with the 'ozinverter' design is the power board layout, it must have plenty of cooling if one runs it on high power.