... 16L/min, 20L/min (25 centigrade temperature rising); Gas Source: LPG, NG, Town Gas Rated gas pressure: 2800 Pa (LPG), 2000 Pa ( NG ... , easy operation; Model of Ignition Methods: Impulse Automatic Ignition; Gas Exhaust Type: Flue duct type; Summer & winter switch for ... Over freezing protection device; Super low water pressure starting design Gas Water Heater, Instant Tankless Water Heater, Natural ...