Domestic fresh water heating with special tanks with legionella protection takes precedence on the market of sanitary heating technology. In the hotel complex on Zlatibor, the investor opted for such a system in order to avoid the potential formation of legionella in his system and eliminate unnecessary costs for thermal and chemical treatment of domestic hot water water. Using SKS (Pro-Clean) water heaters, guests of this complex will have at disposal the purest hot water for their needs in unlimited quantities.