SADPAL mortar additive is a soot combustion catalyst for boilers and fireplaces that use coal, fine coal or sawdust. Add the powder together with the fuel at a ratio of 1–2 kg per 1 tonne of fuel, or directly to the firebox.

For initial use in a well-lit boiler, add the product until the smoke from the chimney turns white. As a guideline, a boiler with a...