high quality s/s housing, instant heating. all copper pipe with different capacity options tankless, energy saving Rated input: 10KW, 12KW, 14KW, 16KW, 18KW, 20KW, 24KW, 32KW, 40KW. Rated hot water output: 5 L/min, 6 L/min, 7 L/min, 8 L/min, 9 L/min, 10 L/min, 12L/min, 16L/min, 20L/min (25 centigrade temperature rising); Gas Source: LPG, NG, Town Gas Rated gas pressure: 2800 Pa (LPG), 2000 Pa ( ...