Fire tube boilers

1
Fire tube boilers
Good for space heating. Not good for high
pressure applications
Boilers with hot fumes inside pipes
Hot fumes come from the burner
The body of the boiler contains the water to be
heated
This hot water is used for heating or it is
converted to steam

• Water tube boilers

The container of the steam is the drum
Boilers with hot water inside pipes
vessel
Hot gases are outside the tubes
Hot water tubes
High pressure and temperature. High costs
High capacity steam generation