How long will a steamer run?
To start, you must service a steamer before running, just as you would a real loco. This means filling the boiler (and the tender, if applicable) with water, filling the fuel tank with fuel, starting the fire, and lubricating the engine while the water is heating. The boiler is ready to move the engine in five minutes or so, depending on the size of the boiler, the type of burner and the operating pressure.