Forced Draft and Induced Draft Fans working and difference in Steam Boilers. Boiler's FD and ID fan

As we know, combustion is a necessary process to generate steam in a boiler. Regardless of the type of fuel used (solid, liquid, gaseous), the presence of three elements: Fuel, Heat, and Air are undeniable for the proper combustion process. Boiler manufacturers use Mechanical Draught Fans to facilitate the air requirement in the boiler and to ensure an appropriate combustion process. Steam boiler mainly utilizes FD Fans or ID Fans in their operations.