They are usually fully automated from fuel store to de-ashing (optional) and can be controlled remotely. This makes them ideally suited for commercial, public sector, multiple occupancy and mixed use developments and community/district heating systems, where they are becoming increasingly common as supplement for fossil fuel boilers by heating the base load of the building with the fossil fuel boilers only been used in extreme cold weather.
Large boilers are typically designed for multiple fuel types such as wet or dry wood chip or pellet. The larger boilers have the advantage of being able to use wet wood chip with step great systems. As with all biomass projects it is important to match the appliance and its location with the fuel source available. These systems are typically set up for one fuel type and of particular importance to their operation is the particle size and moisture content of the fuel.