Expandable Dryers from 5.25 – 258,7 metric tonnes per hour Continuous Flow Grain Dryers Versatility – Efficiency – Quality The Legacy Series high capacity grain dryers may be used for dry and cool or all-heat operations. Each chamber of a Legacy Series contains a double wheel, double inlet, quiet axial fan and Venturi Burner with modulated flame set between the fan wheels for a complete mixing of air and heat.