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[TRNSYS-users] Two stories with a Type 56 or Type 660



Hi,

I am trying to model a multizone building that has two stories.  I am more comfortable using a Type 56, but recently found that I can probably do a simplified version using a Type 660.  However, I am not sure how to model a second story accurately with either of them. 
I understand that the ceiling/floor between the two stories is simply an adjacent, horizontal wall between the two zones, but what should I do to get heat to flow upward through the building as it would in a normal house (upstairs hotter in summer).
Also, is there a specific library material that should be used for the boundary between the upstairs and downstairs, assuming standard construction?
Finally, if I want two zones but no dividing wall between the zones, how would I do that.  In the wall type manager there is a layer that I can use called SILENCE.  does that mean "nothing" or something else? 

Thanks,

Lucas Witmer

M.S. Candidate Energy & Mineral Engineering
216 Hosler Building
University Park, PA 16802
650.796.6814
ltw110@psu.edu