.AixLib.Obsolete.Year2020.FastHVAC.Storage.HeatStorage.HeatTransfer .AixLib.Obsolete.Year2020.FastHVAC.Storage.HeatStorage.HeatTransfermodel HeatTransfer = AixLib.Obsolete.YearIndependent.FastHVAC.Components.Storage.BaseClasses.HeatTransferOnlyConduction;