The main purpose of the system is to save energy; the process makes use of the energy potential of the contaminated exhaust air in order to heat up fresh air via heat exchanger systems. First step is air purification process. After filtering the used air via special design filters, this hot air can be used for heating the unit environment, then send away to atmosphere.

Energy saving of up to 25 % (depending on the process). Thanks to the intelligent automation system, synchronization between the stenter machine and heat recovery unit is done successfully. Heat exchangers made of stainless steel pipes, endurance to the oxidation obtained via stainless steel pipes.