Apparatus for gas fired heating installations; Artificial fireplace heaters; Cast metal fireplaces; Combination fire and smoke dampers; Curtain fire dampers; Dampers for fires; Damping apparatus (parts of fires); Damping nozzles (parts of fires); Dirt pans (parts of fires or furnaces); Domestic fire grate fronts; Domestic fire grates of metal; Domestic gas fires; Electric firelighters; Electric fires; Fire bars; Fire control units; Fire ventilators for exhausting fumes; Fire ventilators for exhausting gases; Fire ventilators for exhausting smoke; Fire ventilators for exhausting vapours; Fireplace fenders; Fireplace inserts; Fireplaces (domestic); Fires; Gas fire radiants; Gas fired boilers; Gas fired boilers for producing domestic hot water; Gas fired broilers; Gas fired furnaces; Gas fired heaters; Gas fired heating apparatus; Gas fired heating installations; Gas fired space heaters; Gas fired space heating apparatus; Gas fired space heating installations; Gas fired water heaters; Gas fires; Ignition apparatus for gas fires; Linings for fire openings; Oil fired boilers; Oil fired heaters; Oven fittings made of fireclay; Pilot lights for igniting gas fired apparatus; Portable electric fires; Portable fireplaces; Propane gas fired space heaters; Propane vapour-fired vertically disposed cylindrical convection space heaters; Simulated coal fires (domestic); Simulated log fires (domestic); Sliding plate fire dampers; Vapour extraction hoods for fireplaces