... (25 centigrade temperature rising); Gas Source: LPG, NG, Town Gas Rated gas pressure: 2800 Pa (LPG), 2000 Pa ( NG), 1000 Pa (Town gas); Ignition ... : 0.015 - 0.8 MPa Diameter of gas connector: LPG: 9.5mm, NG: 12-15mm Diameter of cold water connector: G1/2 ... protection device; Super low water pressure starting design Gas Water Heater, Instant Tankless Water Heater, Natural Gas Water ...