Rice husk briquettes Rice husk briquette is pressed from 100 % rice husk. - rice husk briquette easy catches fire, competitive price, no additional chemical. - rice husk briquette is replaced for coal, fo diesel, petrol, electricity or charcoal for burning industrial boilers, textiles, seafood processing, agricultural processing. Specification : - diameter: 60 – 90 mm - length: 20 – 40 cm - moisture max: 8% - sulphur content: 0.08% - calorie: 3.800 – 4200 kcal/kg - ash content: 17% max