Rocket Mass Heater in a yurt

[wrdanner]

Originally Posted by Marshall Eppley

Dig your duct in before you build the yurt.nothing like natural insulation. They bury duct work in slabs all the time.

If we buried the duct work in the ground (sand) would we still want insulated duct work or would PVC do the trick with the ground insulating it? We'd transition to some type of insulated pipe if it needed to run above ground for any length.