... min, 20L/min (25 centigrade temperature rising); Gas Source: LPG, NG, Town Gas Rated gas pressure: 2800 Pa (LPG), 2000 Pa ( ... connector: G1/2" Advantages: Two power systems for choice Water-gas linked automatic control, easy operation; Model of Ignition ... Methods: Impulse Automatic Ignition; Gas Exhaust Type: Flue duct type; Summer & winter switch for choice; Over-heat protection device; ...