I am in need of a non-electric dehydrator. DC/solar powered would be ok. Plans for building one with no moving parts would be ok, but how many days would it take and would food spoil if we had cooler and humid days? (and we do). I had tons of celery at the end of the season and have only a small gas freezer, so couldn't do anything with it. I did hang-dry some tops as my first experiment and used it in soup and that was flavorful. I think I could dry lots if I knew how. I've never had an electric dehydrator, so I am unfamiliar with them as well. We have been ("electrically") self-sufficient for 12 years now and I think an electric one would tax our system, even in the summer. Any good books on the subject? Thanks for any help!