@Gwaithmir -- this strikes me as a potential solution for our home if / when it becomes too hard for us to negotiate the stairs. We could put a shaft from the dining room to my office very easily.
How large is the vacuum pump mechanism package, roughly? I assume it's at the top of the shaft, so I'd like some idea if we'd have to go through the ceiling upstairs to the attic to accommodate that.
How large is the vacuum pump mechanism package, roughly? I assume it's at the top of the shaft, so I'd like some idea if we'd have to go through the ceiling upstairs to the attic to accommodate that.