The indirect oil heater fans of the IDS series are ideally suited for rooms in which ventilation is only possible to a certain extent, but which are still used by people or animals. They are also a good choice for speeding up construction drying as well as in rooms where there is a fire hazard due to combustible substances.

While, in principle, the combustion process is identical to that of the IDS direct oil heater fans – the fuel is drawn from the tank by means of a pump, brought to operating pressure and in a final step is sprayed into the combustion chamber via an atomiser nozzle as an air-fuel mixture, where it is then burnt – the air to be heated is fully isolated from the combustion chamber in indirect heaters.

Although with indirect oil heater fans the air provided for heating is drawn by the same blower as the combustion air, it is yet guided separately past the increased surface of the combustion chamber, the heat exchanger, so as to be able to heat up there without being mixed with the flue gas in this process. Whereas the combustion products are discharged to the outside via a chimney, 100 % emission-free warm air is spreads through the outlet opening of the indirect oil heater fan.

Thus, in order to obtain both clean and dry warmth, we recommend using an indirect oil heater fan. In contrast to direct heaters, in this case neither combustion products nor released water vapour enters the room air if a suitable flue gas evacuation has been mounted on the device’s chimney, leading the flue gases outside of the room to be heated.