Superheaters are the inverted loop-type and are located in the first gas pass. Screen
tubes are provided in front of the superheater. The number of rows depends on the
desired temperature and on the number of superheater loops. The superheaters are
completely drainable and designed for balanced flow throughout each tube for
added longevity. Drum protection is also added to safeguard thicker wall drums in the
superheater areas