[TRNSYS-users] Ground Convection coefficient

[pseudomino at gmx.com]

Hello,

 Usually, when using the assistant to create a multizone building, the convection coefficient between the soil and the floor is set to 999 to reproduce the absence of thermal resistance.

 But when I create a file using the Trnsys3D import from Sketchup, this same coefficient is set by default to 0,001.
 Why is that ?

 Please help me understand
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