WALL ROMA Wall Boiler Condensation Main features • Models: 21kW, 25kW, 29kW and 33kW; • Heating and instantaneous domestic hot water production • New Stainless Steel Premixed Micro-flame Burner • New High Flow Rate Stainless Steel Single-tube Exchanger • Clean Architecture, Designed For Access For Maintenance • Brass Hydraulics With Motorised Three-way Valve • Reduced Dimensions, The Smallest On The Market • Operating Modes: • Summer (just instantaneous DHW production) • Winter (heating and instantaneous DHW production) • Airtight chamber / Forced draw (type C) • Anti-frost function • Electronic ignition • Full electronic modulation • Energy Efficiency Class Heating/DHW): A / A Product description An articulated project based on an innovative product architecture and an extremely reliable technology that uses singletube stainless steel exchanger to give the user maximum comfort and energy saving. Models: from 21 to 33 kw. Models and Prices Code ROMA Wall Boiler 21 (Condensation) ROMA Wall Boiler 25 (Condensation) ROMA Wall Boiler 29 (Condensation) ROMA Wall Boiler 33 (Condensation) Possible changes without prior notice. Recommended retail prices. The prices indicated do not include taxes. This data sheet doe

WALL TECHNICAL DATA Nominal Thermal Output ref. PCI (80°C/60°C) Minimum Thermal Output ref. PCI (80°C/60°C) Nominal condensation power ref. PCI (50°C/30°C) Minimum condensation power ref. PCI (50°C/30°C) DHW useful heat flow rate Nom. Therm. Flow Rate Useful Output ref. PCI (80°C/60°C) Output at reduced load ref. PCI (30% of Pn-50°C/30°C) GAS FLOW at G20 Methane nominal P (2E+) G20 Methane Network GAS PRESSURE (2E+) Declared water heating load profile Room heating energy class Min/Max Heating set point Water volume in boiler Water volume in expansion vessel Expansion vessel pressure Min/Max Pressure...