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Autonomous heating and autonomous heat management


With heat metering systems, each condominium can manage central heating as if it were autonomous heating. The heat metering tools make it possible to apply the distribution of heating costs among the individual housing units, as in the case of autonomous heating, even if the boiler is unique and shared.

In practice, the heating system remains centralized, but management becomes that of a autonomous heating. It is just a matter of installing metering equipment throughout the condominium that measures the amount of heat actually consumed in each apartment.

Once the devices and meters for heat metering have been installed, each condominium pays for heating to the extent of a fixed fee established by the condominium assembly (usually between 20% and 50% of the total expenses and according to the thousandth shares) and the rest in proportion to what he has actually consumed. This way he can save money by improving his own consumption behaviors, as and even better than a autonomous heating.

The autonomous heating (favored by law 10/91 which made possible the transformation with a thousandth majority without the need for the unanimity of the condominiums) gave the possibility to each condominium to no longer have to discuss with the neighbors about the heating (too hot, too cold ...) and to manage the ignition times and temperatures on their own. With the possibility of saving on consumption.

The autonomous heating however, it also has disadvantages. The first is the dependence on a single fuel, methane gas, and the inability to choose a different energy source in the future (which is possible if the boiler is single and centralized). The second is that the maintenance costs of the boiler (annual and mandatory) cannot be shared with anyone. Third: the efficiency of a small autonomous boiler is lower than that of a centralized boiler, so overall more fuel is consumed with the autonomous heating compared to central heating.

From central heating to autonomous heating

Transformation is certainly possible and is also widely practiced today. The costs depend a lot on the existing plant, but they are not exorbitant. Let's say that for the owner of an apartment with 8-10 radiators in a building of 20 residential units, the cost of the transformation is about 1500-1800 euros. Including boiler adjustments and testing.

Heat metering with thermostatic valves

Thermostatic valves are the most elementary heat metering and autonomous heating management system. They allow you to regulate the temperature of the radiators according to the climatic conditions of the individual apartments and also of the individual rooms. In this way they allow you to keep consumption under control and save money by preventing heat from being lost in an empty or already sufficiently hot room.

A thermostatic valve is installed in place of the old manual valve and automatically adjusts the flow of hot water to the radiator, closing (thanks to the built-in sensor) as the temperature of an environment approaches the desired and set one.

The most recent radiators are already equipped with a thermostatic valve designed to receive a thermostatic head, which makes installation easier and brings the cost down to about 30 euros for each radiator. On old radiators, installing a thermostatic valve costs about 60 euros per radiator.

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