I've finished my prototype solar air heater and now I'm looking at creating a permanant, 6 foot X 12 foot unit but I'm thinking about snaking some copper inside as well.
I'm wondering if anyone's found success creating a combined solar and water heater? I searched around and only found one example but it was small and contained no imperical data that I found to be useful.
Has anyone tried pulling the hot air out of thier solar water heater, or is that too counter-productive? I would imagine that if the collection unit were large enough that it could be done properly?
Thanks for entertaining the question.