This centrifugal fan assessment compares BL-F200A-EC-07 and selected GRE/GRF variants for kiln auxiliary ventilation, evaluating performance under high temperature, thermal soak, dust buildup and system resistance shifts, examining control compatibility, material & seal suitability, vibration stability and five-year lifecycle cost; datasheet aerodynamic curves alone cannot validate kiln service, requiring supplier-verified thermal, mechanical and medium compatibility data before final fan selection.