Now that I didn’t think of but it makes sense really turn a motor backwards and it’s an alternator. The plans iv got just use a car alternator and some bits and bobs you can pick up from a hard wear store
I met a guy that heated his water in the summer with radiators pantied black in a cold frame. Apparently a glass cold frame is better than plastic .
So who’s got some plans to put up then we should all get building, building tawwards a greener and freer would