The hot exhaust gases from the heating device to the chimney pass through the heat exchanger, at the same time heating the clean air taken in from the room. Thanks to the radial fan, the heated air is forced out through two warm air outlets.
The additional heat obtained from the flue gas increases the heating efficiency of the device, thus allowing to heat a larger area or reducing heating costs by reducing the fuel consumption of the heating device.
Connecting the blower channels to the economizer outlets allows the heated air to be directed to adjacent rooms. The shorter the duct section, the greater the efficiency, so it is recommended to use ducts to heat rooms located "through the wall" with the room where the heating device is located, or in a short distance from this room.
The economizer is especially useful for heating social rooms (canteen, cloakroom, etc.), offices or points of sale.