The Fixed Grate system by ADR Energy is a simple, reliable, and economical combustion solution designed for small to medium solid-fuel boilers. Built with a stationary grate surface, this system allows manual fuel feeding and natural draft or forced draft air supply for efficient burning. Due to its rugged construction and straightforward operation, the Fixed Grate is ideal for industries using biomass, wood, coal, and agro-waste fuels where low maintenance and cost-effectiveness are key requirements.