Modelling a Vacuum Partition

[TrooperCooper]

Hi all,

Is it possible to model a vacuum void within a room, I'm thinking of a wall with a vacuum within covering the span of the wall?

Thanks

[farahghanem]

you can't specify the "vacuum" as far as I know. But you can "work around" this by assigning low U-value to the partition wall to simulate thermal isolation from that room.