IVAR E-SAT DUAL is a double heat exchanger satellite module which allows on-site production of DHW and hot water for the heating system, with only AFS connections and technical water supply/return. Thanks to the integrated electronics IVAR E-SAT modulates the technical water flow to guarantee a low return temperature to the boiler. The double exchanger solution, completely separating the centralized system from the domestic one, guarantees easy maintenance of the single user system. IVAR ESAT DUAL can be equipped with differential pressure valves and shut-off valves kit.