| 摘要 |
A radiant gas heater is provided which includes one or more gas inlets 105, for receiving gas from a gas supply and one or more air inlets 110. The heater 5 includes one or more gas burners 120A - 120E, in which gas from the one or more gas inlets 105 is burned using oxygen admitted through the one or more air inlets 110. One or more heat emitting elements 125A - 125E are included, which emit infrared radiation using energy generated by the one or more gas burners 120A - 120E. One or more ionization probes 130A are provided 10 proximal to two or more of the heat emitting elements 125A - 125E for detecting the presence or absence of a flame. A housing 115 is also provided which accommodates the one or more gas burners 120A - 120E, the one or more heat emitting elements 125A - 125E and the one or more ionization probes 130A. One or more control units are also provided which are in 15 electrical communication with the one or more ionization probes 130A and the one or more gas inlets, the one or more control units operable to shut off the gas supply if the one or more ionization probes 130A detect the absence of a flame. [Figure 1A] |
