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18 Sep 2019

Firetube vs watertube boilers: a comparison

There are a number of considerations to factor when determining the best boiler for your steam generation needs like operating pressure, steam pounds/hour output, demand fluctuation, general application requirments and total cost of ownership, etc.

Two primary boiler types, the firetube boiler and the watertube boiler, are essentially opposite in design. The firetube boiler passes combustion gas inside a series of tubes surrounded by water in a vessel to produce steam, while a watertube instead sends water through a series of tubes surrounded by combustion gas used to transfer heat energy and produce steam.

Here are a few key differences between the two:


Firetube Boilers:

- compact construction   - efficient, straight tube design- lower total cost of ownership- easier access and maintenance- good load surge handling @ pressure- simple operation


Watertube Boilers:

- higher operating pressures- higher temperature output- safe, dependable design- precise load fluctuation handling- superheated steam generation- fast heat recovery- better turn down

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