CONDENSA BI COMPACT - Wall hung pre-mixed and condensing boiler, with constant and very high efficiency, working with natural gas or L.P.G. for heating and hot water production. Consisting of: stainless steel boiler body, sealed combustion chamber, stainless steel AISI 316 tank with function to prevent the "LEGIONELLA" and 2 ltr. expansion vessel for sanitary circuit High head pump included for mod. 5.32; model HE comes with high efficiency circuit pump. Electronic control: flame ionization and continuous modulation electric start unitl 5 KW with microprocessor. SART automatic system with selection of inlet water temperature range according to the installation's demand (high or low).