The anti-limescale inhaler is an equipment which is integrated in the heating plant in order to reduce the limescale which could form inside the pipes and in the boiler. This element is installed inside the pipes which carry the water into the boiler and become necessary when the water is particularly hard. Thanks to a specific treatment which are subjected the pipes with this component, the limescale in the plant is completely removed. This also matches with a function of the tubes longer over time, since their duration is increased. Moreover, when necessary, the inhaler of polyphosphates could be removed without intervening on the pipes.