Described are enhanced charcoal briquettes. Charcoal briquettes are formed from coal dust, a biomass material, sawdust, and/or the like. A combustible coating is disposed about at least part of the charcoal briquette. The combustible coating acts as an initial ignition material during initial lighting of a pile of enhanced charcoal briquettes. The charcoal briquette within the combustible coating acts as a main/primary ignition material. Effective and sustained ignition of the charcoal briquette is aided by the combustion of the initial ignition material at least partially coating/disposed about the charcoal briquette. When enhanced charcoal briquettes are piled together, the combustible coating disposed on and/or about at least part of each charcoal briquette functions as a spacer between adjacent briquettes to increase airflow through the pile of briquettes, leading to more effective secondary ignition of the charcoal briquettes following ignition/combustion of the combustible coating.

A fire detection device is designed to make hydrogen fires detectable in aviation operations and similar applications, whether it is for the purpose of detecting a fire around an aircraft prior to passenger and crew emergency evacuation, or to identify fires in proximity to airport ground vehicles that utilise hydrogen as a fuel or vehicles that are used for transporting or transforming hydrogen in any transport context. The device can be designed to be non-toxic and safe for use in proximity to humans.