Energy Savings in Blocs of Flats Due to Individual Heat Metering

The installation of thermostatic valves and cost allocators represents the main modernizationmeasure of the heating installation. In this study we determined theoretically andexperimentally their effects upon the energy savings. Their adaptive behavior to the dynamicclimatic conditions leads to 15% energy savings. Further on, the people reduce the indoortemperature in order to reduce the price of the energy. This effect represents another 9%,leading to a total of 24% energy savings. The north apartments need 15% more thermalenergy than the south oriented apartments. The installation of these devices raise un otherproblem, the measures to correlate the heat production to the heat need.