The invention relates to a method for determining and/or displaying heating costs at which the total accumulated final energy use, a building with at least one continuously utilizable unit detected and to an evaluation unit (2) is transmitted, at least on the basis of the accumulated final energy consumption Getting the converted in which the total cost, wherein the total cost by taking account of each utility meter utilizable unit by (3, 3a), in particular heating cost distributor and/or amounts of heat and/or heat and/or detected in costs for each Hot warm water consumptionutilizable unit and/or point-of-use and for display in a display device (6, 3) or for retrieval by a user a are kept ready utilizable unit. The invention relates to a system for calculating and/or further comprising at least one displaying heating costs final energy consumption counter (1) for detecting the total accumulated utilizable unit final energy with at least one of a building, and an evaluation unit (2), can be transmitted to the the detected final energy use, and in which the total cost can be determined at least based on the final energy consumption, and at least one utility meter (3, 3a) for at least one user station utilizable unitwarm water consumptionheat consumption and/or for detecting the each, wherein the thermal insulation and/or from a utility meter warm water consumption (3, 3a) to an evaluation unit (2)...