Question

What is the difference between the air pre-heater & air blower?

Answer 1

AIR PRE HEATER.. -
An air preheater (APH) is any device designed to heat air before another process with the primary objective of increasing the thermal  efficiency of the process. . they may be used alone or to replace a recuperative heat system or replace Steam coil................


AIR BLOWER ------
This device makes use of the rotating impellers to increase the speed of the air gushing out of the drive out shaft. An air blower accelerate air flow radially ...while changing the directions by 90 degree. these Power Tools mostly used in heating, ventilation and air conditioner (HA AC) industries