Answer / vikas

i think 4 increase the efficiency ...the no of aph doesnt
matters lot.it matters is how much we get out of it.

Answer / divyesh tailor

It is totally dependent on the overall design. That means
generally in any boiler it is to be decided from the total
air flow. Also we do have two FD fans and Two PA fans
running in normal opertaing conditions. So as to match with
the design of the ducting. otherwise we have to modify the
ducting as well. And it is economical also.

Answer / rate

One as a Stand-by

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