Our premium willow briquettes are made from a blend of 100% renewable, Irish-grown willow and biomass, with zero additives, artificial ignition ingredients or binders included. With their low moisture content (less than 10%), WillowWarm briquettes produce powerful heat with a long, clean burn, while their low ash content (less than 3%) makes them clean for your home and the environment. The Willowwarm carbon neutral briquette are produced from 100% sustainably grown Irish wood. Substainable choice for home fuel, our briquettes are suitable for everyday use in all open fires, stoves, chiminea, and more.