When the wick becomes black from carbon, pull it up with pliers until the clean wick appears. Cut it off even with the top of the chimney, then straighten the wick in the chimney.

To replace the wick; use tweezers to remove all packing from the fuel chamber. Insert a new wick downward through the chimney pulling it through with tweezers.

Replace the packing in small pieces, interweaving the wick between the padding pieces. Be sure to trim the wick even with the chimney height.