Reallocation of heating costs due to heat transfer between adjacent apartments

The purpose of this study is to develop a cost-efficient method for estimating the size of heat transfer between adjacent apartments in multi-apartment buildings. The objective is to use these estimations for reallocation of heating costs due to heat transfers when measuring the delivered amount of heating energy to an apartment. The methodology used for the purpose is an earlier presented model as a base which has been further developed. The method is tested on an existing multi-apartment building with 16 apartments. An attempt to verify the method has also been done with computer based simulations. The study demonstrates a possibility to make corrections for heat transfer between adjacent apartments in a fairly cost-efficient manner. However, the accuracy of the method has to be improved by more studies in other multi-apartment buildings.