Does a Chimney consume a lot of power/electricity?

You may get maximum power consumption value as 300 to 400 watts in specification table but that is the summation of the wattage of all parts in the chimney. But all the parts will not be running altogether. When you are using the chimney, auto clean will not run at that time which excludes 100 to 150 watt in case of dry auto clean. So on an average the chimney consumes only 120 to 200 watts while running.