I've been considering the challenges of living in a tipi and one concern is how to keep it well insulated and warm in the winter to avoid burning more soft wood than necessary. I came up with a possible solution, and am wondering if anyone can point out any issues and improvements.
The idea is to dig a few feet down in the tipi, potentially using the ground as a thermal mass. Other things could be added like a pipe pulling air from outside up through the fire, a wood stove or a rocket mass heater but for now I want to focus purely on the dug out aspect of things and how it would affect the temperature inside.
