Rocket Mass Heater in a yurt

[Zelig]

Originally Posted by hierony

I need to double check, but I believe that comes from Paul King's book.

I have Becky Kemery's book and all I found in there was reference to "sometimes several layers" of felt. No mention of thickness or number of layers.

I do believe that my insulated chimney, lexan toono covering and house wrap will give us some advantage over old school yurts as you mentioned, but I'm wondering what the btu rating of dried dog turds might be. Perhaps birch would be a better bet.