Gas boiler, domestic, floor-standing, condensing, for heating and ACS

Energy rehabilitation of a building by replacing existing equipment with a floor-standing condensing boiler with a stainless steel heat exchanger, aluminum/silicon cast body, and a modulating gas burner, with an energy efficiency class of A, a heating power of 4.5 to 22 kW, dimensions of 820x600x625 mm, a regulation panel and a modulating thermostat with an external temperature sensor, a gas mass flow rate of 9.6 kg/s at full load and 1.9 kg/s at partial load, with a CO2 content of 9.1% at full load and 9.3% at partial load, a maximum available thrust pressure of 80 Pa, a maximum thrust temperature of 100°C, a water content of 18.8 l, a boiler-to-gas collector or pump group connection kit, a boiler-to-gas safety kit, a boiler-to-expansion tank connection kit, with a vertical floor interacumulator, for ACS production in combination with a boiler, of 160 l, with a hydraulic connection kit to connect the boiler to the accumulator, without including the combustion products evacuation pipe. Fully assembled, connected, and tested.