Condensa R - Wall hung pre-mixed condensing boiler, with constant and very high efficiency working with natural gas or L.P.G. for heating and for instantaneous hot sanitary water production. Consisting of: stainless steel boiler, sealed combustion chamber and instantaneous stainless steel heat exchanger for hot water production (HE version is equipped with high efficiency pump) Electronic control: flame ionization and continuous modulation electric start until 5 KW with microprocessor (mod. 5.24). SART automatic selection system of inlet water temperature range according to the installation's demand (high or low). Electric protection IPX4D SOLAR SYSTEM electronic board integrated.