A contrivance (30) simulates smoke and flames emanating from an intense burning simulated log stack fire (13). The visual effect is provided by unrestricted fluctuating light reflected off spaced apart sunburst formation bunches (41) of colored rotating metallic strips(9) of different length that transmit uneven flashes of colored light and shadow through a bronze tinted tempered glass diffusing screen(16)(39) simulating images of smoke and flames when viewed from the front, simultaneously the simulated log stack bed (13) adjacent the lower area of the screen(17)(40) is illuminated providing a glowing surface and a intense flickering flame effect is transmitted and viewed through the plurality of openings(14) in between the individual protruding angle backward log configuration of the log stack bed(13) creating the overall images of smoke and flames emanating from out of a real log stack burning fire with intense burning core simulating a natural roaring log fire.