It's been quite awhile since posting any info about the geodesic dome greenhouse. This spring had more rain then usual and the site was too wet to run heavy equipment through. We're hoping to start digging for the footings in next week or so.
I've started to experiment with rocket mass heaters and have had very good luck with running a good clean burn. It will be quite impressive to be able to heat the entire greenhouse without needing electricity to store heat in a thermal mass or run a blower for the burner. More to come!