Induction system of water central heating consists essentially of a system that, by means of transformer (1), having a secondary (2) formatted by an about-face around of the primary (3), receives cold water (A) that, at the same time that refrigerates said transformer (1), it is sent to a reservoir (4) of hot water, from where it is directed to a plate (5) of heat where circulates through ducts (6), interlinked by conductive element (7), being heated by the effect Joule, once such plate (5) configures poles (8 and 9) of inductive connection derivatives from the towers (10 and 11) of refrigeration, promoting an amperage multiplication. This system can be used also in showers and heating products in general.