Complete 'plug and play' system for heat transfer from technical water storage tank, with programmable control unit and circulator. The QUICK module guarantees the production of domestic hot water with limited limescale formation and at the temperature set by the user. Heat exchange takes place by means of an AISI 316 stainless steel plate heat exchanger with a maximum guarantee of hygiene and high performance. The module, connected to a thermal storage tank from which it draws energy, is complete with all the components necessary for its operation and, by means of a control unit with graphic display, allows the user to keep operation monitored as well as easily set the operating parameters. The heart of the QUICK unit is the special electronic regulation that guarantees the set temperature value of the DHW by modulating the flow rate of the primary circuit.