Enhance the look of your Rasmussen gas log sets. The Rasmussen Ember Booster Burners Increases size of ember bed on “F” Flaming Ember Burners. Not needed with “FX” burners. Enhance the look of your Rasmussen gas log sets. The Rasmussen Ember Booster Burners Increases size of ember bed on “F” Flaming Ember Burners. Not needed with “FX” burners.