... 3)it's suitable for restaurant ,hotel ,ects gas range with burnerModleSwitchesHeating valueBurnersSize(mm)GZML-4T4125.275btu/hr4800*900 ... lighting the flame because this releases gas. Left on too long, this gas can be very dangerous (please see ... If the flame does not light, turn the gas off (by turning the knob ALL the way to ... to the left as possible to avoid gas leakage. gas range with burner(GZML-4T)