Description

ID fan is basically mentioned here for Induced draft fan and ID fan is always located between dust collector and chimney. ID fan will take the hot flue gases from furnace via dust collector (dust separation system or Fume Extraction system) and will deliver to the chimney. ID fan will handle the flue gases i.e. hot air.

ID fan will produce the pressure lower than the atmospheric pressure in the system or we may say that the ID fan will produce the negative pressure in the furnace to remove the flue gases from furnace via electrostatic precipitators and to push the flue gases to the chimney.