Thanks to heat recovery with rotorsystems this loss of heat can be greatly reduced.
The amortisation periods are in most cases less than a year. The employment of a rotor system is worthwhile not only because of the significantly lower operating costs (see diagram 2).
The investment costs for the entire facility are also reduced. Rotorsystems can also be operated with low outside temperatures during the winter. Based on the high heat recovery performance many utilities (boilers, etc.) can be appropriately reduced in size.