Hello everyone! I am working on my thesis and I am trying to simulate a thermal chimney using EnergyPlus and SketchUp (Euclid extension). I have already set all the parameters of thermal chimney object and set 0.1m2 as inlets and outlet area. My question is, how do I create the geometry of them in SketchUp since thermal zones must be designed without any holes? Should I draw them as glasses or they should not be drawn at all?

Thank you