The present invention discloses a gas burner for a solid fuel effect gas fire. The burner comprises an integrally formed metal casing defining a gas/air mix chamber. A gas/air mix supply pipe connects with the chamber and a number of burner bores are provided in a wall of the casing. Simulated solid fuel elements can then be located above or on the said wall of the casing so as to not close said burner bores. Age will not affect the performance of the burner as can happen in prior art burners where the casing is formed by an open trough closed by a ceramic plaque where gas/air mix bores extend through the ceramic plaque which is moulded with a number of simulated fuel elements on its upper surface, and sealed by mastic or filler to the rim of the trough which mastic deteriorates with age.