Hotspot Flue Free Chimney Cleaner is a specially formulated granular deposit conditioner which breaks down creosote and tar deposits that coat combustion areas and chimney interiors - a problem experienced with most solid fuel stoves and fires. Flue Free helps to maintain clean chimneys for maximum efficiency, lower fuel consumption and reduces the risk of chimney fires. It is non-corrosive and suitable for use with stainless steel flues. A measurement scoop is supplied in the tub.