a method for mounting a wick within a wick sustainer is disclosed . the sustainer has a base , a barrel and a passage that extends through the sustainer . the passage has an upper region occupied by the wick and a lower region occupied , at least partially , by the sealant . sealing the lower region of the passage is accomplished by injecting the sealant into the passage , thereby preventing the fuel from contacting the portion of the wick that is retained in the upper region of the passage . fuel reaches the flame of the burning wick only through the portion of wick not held in the sustainer , so the flame is extinguished once the fuel descends below the top of the sustainer .