... . 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 ... systems for choice Water-gas linked automatic control, easy operation; Model of Ignition Methods: Impulse Automatic Ignition; Gas Exhaust Type: Flue ... protection device; Super low water pressure starting design Gas Water Heater, Instant Tankless Water Heater, Natural Gas Water ...