Without the galley bulkhead and flat, raising the galley hatch creates a lot of interior space in the rear of the camper, and soft walls (tent fabric) enclose this space. In warm weather, opening the hatch creates a large, well-ventilated space. In cold weather, closing the hatch creates a smaller, well-insulated space requiring less energy to heat. With the soft walls removed and the removable flat in place, the hatch still works as designed.