One Model KC 12 rice husk/straw gasification system supplying biogas to a 20,000 PPH process steam boiler. The boiler exhaust is directed to a continuous flow vertical column dryer to supply direct heat for paddy rice drying. The gasifier input heat release is 29.5 mm Btu/hr. Total ash/charcoal production is 0.75 tons/hour. Ash is discharged from the bottom of the gasifier, cooled, conveyed pneumatically and stored in a steel silo, packaged and shipped to be used as an insulating topping in the steel industry in the US, Europe and Japan.