Compare this photo to the one titled "Wood Heat" and you will see that, after our first winter, we swapped the stairs and wood stove. Now we have the stove in a central position with interior cob walls around it. The new cob stairs are insulated from the exterior cob wall by 2" pink board insulation. What a difference these changes have made. In our second winter there was a nice balance between the main floor and loft and it is much easier to keep the main floor warm.