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Eleni, It is not exactly correct because it is not time dependent and uses default interior and exterior convective coefficients but I usually use the u-value shown in the *.inf file as my reported u-value for walls. I do not think that there is a special ntype for the u-value of walls. Please someone correct me if I am wrong about that!! As for NTYPE86, it is the equivalent thermal resistance (r-value) between a given (user specified) surface and the star-node (for radiation exchange calculations). Kind regards, David eleni ampatzi wrote: Dear All, --
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