The Oslo ceramic burner is individually hand made and so there may be slight uneven surfaces or minor ripples as well as variations in height and weight and colour texture. None of this will affect the functionality of the burner and is normal in the production of individually made products.
The ceramic is thicker than some other materials used to make wax burners so a good quality tea light a minimum of 2cm high is required in order to make sure the wax is melted properly.
It is recommended that the burner is not used for any longer than 4 hours at a time.
