Bezzera DUO Top, dual boiler machine The Bezzera DUO is an advanced espresso machine - 3 PID thermostats - Bezzera brew group - quantity control:The Bezzera brew group is heated by separate heating elements, activated by a PID thermostat which ensures a constant temperature. DUO DE - 3 PID thermostats - Bezzera brew group - volume control: The Bezzera brew group is heated by separate heating elements, activated by a PID thermostat which ensures a constant temperature. The 2nd PID thermostat regulates the water temperature in the boiler, which is intended for coffee extraction and guarantees optimal thermal stability in a range of 88-96 ° C. The steam and water circuit is connected to an independent boiler, also controlled by a PID thermostat, which allows optimal steam performance even during intensive use. The DE version is equipped with volumetric coffee dosing, controlled by a microprocessor. It offers 4 coffee dispensing options, which can be programmed directly from the keypad the fifth button activates the manual dispensing process. The most important in a nutshell: - Automatic setting of daily on / off - Automatic brew group rinse program - Pre-infusion can be set - Water filter alarm and maintenance cycles - Selection of water supply: either through the water pipe (fixed water) or through the water tank - Boiler priority can be set Technical specifications: - Rotating pump - 4 liter fresh water tank - Coffee boiler 0.45 liters - Steam / water boiler 1 liter - Fixed water connection possible - Housing and body made of AISI 304 (stainless steel V4A) - Gross weight: 33kg Mass: width: 3