I just finished cleaning the stove and noticed the two allen screws holding the decorative grill in place covering the warm air discharge. I remover the grill thinking the rough edges on the castings may be contributing to some extra noise. With it off, it does seam quieter and it seems to be putting out a greater volume of air. Ill run it on and off and see if I notice any performance changes. Give it a try and let me know what you think. One thing is for certain, it doesn't look very good.