How does a fire tube boiler start up when cold?

The action of starting up a fire tube boiler for the first time is already a cold start. As a result, the mechanical load in this type of boiler is much greater, as the main characteristic of cold starts is the absence of boiling water and greater stress on the connection and anchorage elements of the boiler.

To make this start a bit easier for the boiler, the boiler operator should reduce the burner load to a boiling point.