An ash screw conveyor is intended for transporting of ash generated in the biomass combustion process. The ash can be transported to the container or basket intended for that purpose. These conveyors are available in 2 modules W-1 and W-2 that can be combined in one ash transport system. The W-2 conveyor can be set at an angle from 0 to 180 degrees depending on the customer's needs. This equipment can be adapted for ash tranporting from various types of grates or dust removing equipment, such as a multicyclone or a bag filter. The ash screw conveyor produced by the Runarsson company is an economical solution due to its low energy consumption.