The Alpha Evoke 28NX 28kW Combi Boiler (3.033114) is an A-rated gas condensing boiler designed for efficient central heating and domestic hot water. Featuring a 12.1L/min hot water flow rate, stainless steel heat exchanger, 1:6 modulation and compact 712 x 440 x 255mm dimensions, it is ideal for cupboard installation and modern heating systems. Supplied with a 7-year warranty.