It is true that these units consume quite a lot of energy but more than 80% of that energy is calorific. If the installation has residual heat such as steam, heating oil or hot water, it can be taken from that. It can also be produced through primary energy with units reactivated by a natural or propane gas burner.
For all units we can reduce the energy consumption with alternative methods. In our compact ranges, we have purge sectors in the rotor that leverage the wheel’s heat inertia to reduce the heater’s energy consumption. Also, the very hot dessicant of the first angles does not dry sufficiently and this leads the heat to be recovered here.
In our A series we include plate heat recuperators and in the DFRIGO series the plate recuperator is fully integrated between flows also with the aim of reducing the injection temperature.