I cam across this Solar Pit House design from Owen Geiger, shortly after getting interested in earth bag building, and I'm curious if anyone has any thoughts on this style. Do you think it can stand up to cold weather like the designer suggests?
I also noticed some similarities to earthship designs, and wonder if this plan could be adapted to also have rain water collection.
It is an interesting concept along the same lines as earthships, but there are a few details that would render it uncomfortable if built exactly as shown.
The sloped windows are positioned for maximum solar gain in summertime, with no shading mechanism visible, and would bake the occupants out on long sunny days. The floor material does not appear to be specified but is probably concrete, and it would hold some winter solar gain, but not enough to temper the daily swing. The thick mass back wall would never get any direct solar exposure.
Adjust the proportions to fix these issues and I would like to see it built.
If you study the more recent earthship designs you will notice that they have essentially segregated the greenhouse and the living spaces with doors and windows/hallway. I have seen some interesting track doors that are large windows and fold up accordion style which may be nice for this too. Otherwise windows and doors.
Also, I would use in-floor tube solar hydronic heat as well as a rocket mass heater.