An a-frame with the merchanting style side-panel door. I don't believe there's any authenticity argument for this set-up, but it sure is convenient. This particular tent doesn't even appear to have traditional door panels.
Def house - the white thing in the corner is a wood stove, and a root cellar should be completely underground. -- House or root cellar? - Inside the house of ancient Russians (slavyane), the century. The window was used as a door.