high quality s/s housing, instant heating. ... 16KW, 18KW, 20KW, 24KW, 32KW, 40KW. Rated hot water output: 5 L/min, 6 L/min, 7 L ... min: 110 mm; 12L/min - 20L/min: 140mm Water pressure: 0.015 - 0.8 MPa Diameter of ... Water over high pressure protection device; Over freezing protection device; Super low water pressure starting design Gas Water Heater, Instant Tankless Water Heater, Natural Gas Water Heater ...