Sorcerer Flue & Chimney Cleaner 90g Sachet Reduces Corrosion & Improves Combustion Suitable for use on all fires, boilers or stoves that burn wood & multi-fuels Breaks down tar & creosote build up Makes sweeping more effective Sorcerer improves the efficiency of your fire by gradually reducing the hard coatings of tar & creosote that build up in the chimney flue thereby improving combustion by keeping them cleaner. However regular sweeping & inspection are essential. Directions for use : For peak effectiveness, use on a LOW fire & with the ashtray emptied. With the fire lit but almost burnt out, using suitable tongs, carefully place the entire Sorcerer packet in the centre of the fire After the Sorcerer has caught fire, to accelerate the action, close the fire damper & close the stove door and/or place a fireproof metal sheet across the fire opening. Let the fire burn out & dispose of cooled ash in the normal way Use 2 sachets for larger fires or boilers over 65, 000BTU or where chimney flue area is abnormally large & dirty Do not use on gas or electric fires Contains: Phosphates Alternative product to Witch which is now discontinued Contents: 90g