The CSL - The official Chimney Sweeping Log Website

To ensure proper combustion of the CSL, pull the seams of the wrapper outward, to create an airspace between the CSL and the paper. This will allow it to catch fire more efficiently.

For Woodstoves, inserts and small fireplaces, use 1 CSL:

For best results, place the CSL on the hot embers after you have burned a regular fire.
Never place the CSL on an active fire.
The CSL will work alone, however, placing the CSL on the hot embers will help prevent downdrafts (smoke coming back down the chimney) when the smoking action of the CSL process continues after the flames have died out. Go to facts and tips menu for more information on downdrafts.

For large fireplaces or when using 2 CSL at the same time:

Remove the two CSLs from the box and place them both in your fireplace.
DO NOT place the two CSLs on hot embers. Placing two CSL logs on hot embers may cause the fire to burn too intensely.

If a downdraft occurs, it is most often caused by poor draft conditions within the room. Open a window or door and if necessary, carefully place some paper in the fireplace to start the draft going upwards again.

Make sure all fans (heating, ceiling, etc.) are shut off when using the CSL, even fans in others rooms such as the bathroom or kitchen.

If the CSL does not ignite, light each ends with a match or lighter. Do not use flammable liquids or other means to ignite the log.

Close any glass doors and lower air-intakes on your wood burning appliance.

Close any fire protection screens.

Go to section 3: Using the CSL into a woodstove or insert

Go to section 4: Using the CSL into a fireplace.