... saving Rated input: 10KW, 12KW, 14KW, 16KW, 18KW, 20KW, 24KW, 32KW, 40KW. Rated hot water output: 5 L/ ... /2" Advantages: Two power systems for choice Water-gas linked automatic control, easy operation; Model 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 ...