A cyclone furnace consists of a horizontal cylindrical barrel attached through the side of a boiler furnace.

The two amidship Dahlgrens nearest the boiler furnaces were fitted-out to fire heated shot.

Mr. Vignola took an elevator to 205 feet above sea level, near the top of a boiler furnace for Big Allis.

Her boiler furnaces were originally designed to burn wood but had now been modified to take coal.

These drums were where the water filled tubes were terminated after having passed through the boiler furnace.

The steam piping is directed through the flue gas path in the boiler furnace.

In such cases, separate gas burners are provided on the boiler furnaces.

Stoker: Now defunct, the stoker was an engine department rating with responsibility for shoveling coal into the boiler furnaces.

These discharged onto mechanical stokers and into the boiler furnace.

They were dropped into coaling barges and slung into boiler furnaces with the rest.