Room Sealed Instant and continuous hot water, reliable and independent heating High efficiency, 93.05% Latest electronic and mechanical systems o Room Sealed o Three speed circulator pump o Three way valve o Active Combustion Control System o Italian sanitary water heat exchanger o Atmospheric burner with auto-ignition o Ionized flame protection o Microprocessor controls o Electronic troubleshooting system o Anti-freeze system o Pump and valve anti-lock system o Water temperature stabilization system o Automatic bypass o Min and Max heating water pressure control o Max heating circuit temperature control o Equipped with a digital display 1- Different working status of the boiler 2- Flow heating temperature in CH function and standby mode 3- Output sanitary water temperature in DHW functio 4- Error codes in case of safety intervention o Automatic gas flow control Ability to connect to room thermostats Ability to install an exterior weather temperature sensor (Thermoregulation) Equipped with fan for exhaust fumes (forced flue) Closed combustion chamber This model is appropriate for: • Units up to 210 square meters Installation Notes • The product includes free installation by a certified BIG serviceman. • Special dual chimney for air intake and exhaust fumes Warranty • Twenty-four months. Please consult your warranty card for conditions.