AIR-Fröhlich glass tube heat exchangers have been standard components in malt kilns for decades. With thermal efficiencies of 80%, up to one third of the energy required for malt drying can be saved. The V-form glass tube heat exchanger configuration, developed by AIR FRÖHLICH, provides solutions whit structural elegance even for applications in large-scale plants, exceeding 100 tons of daily malt production. As all units are designed individually for each application, kiln air massflows of 100’000 kg/h up to more than 1 million kg/h can be managed easily and without a problem. The new generation of malt kiln heat exchangers, with tubes in horizontal position, provides a level of safety and efficiency on a scale yet to be surpassed.