For the Papier AG in Perlen (Switzerland) we calculated, designed, manufactured, delivered and installed an external economizer with metal sheet casing.
The Economizer consists of four complete metal sheet boxes with all installations like pipe coils, collectors, mounting brackets, supports, flanges for the soot blowers, checking taps and pipe fairleads in the metal sheet walls.
With this construction the mounting time was reduced considerably (five days including pressure test).
The dimensions have been chosen to allow a common excess width transport. (< 5 m width).