There is not just one way to reduce energy consumption for heating. Specific systems can ensure that our heating means heat our space exactly as needed, without wasting extra energy. It is known, after all, that a large part of the energy consumption of buildings concerns the meeting of heating and air conditioning needs. Of course, this consumption depends on various factors, such as the construction, the type of building, the climatic conditions, the systems used, the infrastructures, the duration of operation of the facilities and others. By reviewing the figures of the National Statistics Service we will find that the consumption of energy in heating and air conditioning in the domestic sector as a percentage of the total consumption of buildings is very high. The savings that can be achieved are significant, as energy consumption is a key part of the building’s operating costs, while at the same time the atmosphere is burdened by the emitted pollutants.