Abstract: An infrared radiating burner article, for generating infrared radiation. The article is conectable to a system for mixing air and gas and supplying such air/gas mixture thereto.The structure includes a housing, having an opening extending therethrough through which the air/gas mixture may be fired in use. The structure further includes diffuser plates, for diffusing the air/gas mixture upon firing thereof through the housing opening so as to generate substantial pressure in such air/gas mixture. The diffuser plate is secured in the housing opening in the path of movement of the air/gas mixture upon firing thereof through the housing opening. The structure further includes a refractory grid, positioned in the housing opening in the path of movement of the air/gas mixture. The refractory grid is positioned at a point in the housing opening beyond the location of the diffuser plates. The air/gas mixture is fed through the refractory grid.