For many years, STELA has achieved very high degrees of efficiency with the indirect air heaters type SLI und SII. These high degrees were now approved by an official certificate. The efficiencies achieve values of 90 % and more also when drying maize with very high temperatures.
This means for our customers great savings in money along with a high reliability.
Not only new plants are increasingly installed with an indirect heating system. More and more customers retrofit their existing plants for indirect heating. Whether gas or oil firing, all plants can be converted easily. The existing air heater is removed and the new indirect air heater simply is installed. In most cases, only very few interventions into the existing control system are necessary; the complete installation is carried out in a few days.