Biomass Induced Draft Fan Pellet Producer April 23, 2015 Success: Feeding the Biomass Machine For this US pellet producer, AirPro supplied many industrial fans of various types including IEAH 451 (Industrial Exhaust Air Handling Fans), RTHS 330 (Radial Tipped Fans), & BIHS 402 (Backward Inclined Fans). Continue reading →