Abstract: Gas log apparatus utilizes a burner in which a gas/air mixture is distributed to burner ports by a flat horizontal plenum chamber supported by a grate. The ports are rectangular, and formed in lateral ridges in the plenum chamber beneath and to either side of a laterally extending artificial log supported above the plenum chamber. The log is the middle of three logs arranged one behind the other and successively stepped upwardly, the middle and rear logs being supported by cantilevered extensions from the rear of the grate. The ports have varying width and spacing, which together with their sharply angled configuration, contributes to a lifelike appearance of the flames without causing excessive carbon monoxide emission.