Anyone using passive solar to heat your shed?
We'll be building a small-ish (13x16' or so) this Spring and I'm looking for some ideas to heat it because I'll probably be working in it from time to time in cool weather. It won't have electricity running to it so I'm looking for some kind of passive solar heat possibly.
I keep looking at the ideas for the soda can passive heaters but haven't been able to find a real convincing set of results. Any ideas?