The forward set were larger and had five furnaces each, whereas the aft boilers had three furnaces each. "Each group of boilers had its own coal bunkers abreast it". "The boilers worked at 20 lb pressure."
The forward set included furnaces that were larger and held five units each, while the aft boilers consisted of smaller furnaces with three units each. "Each boiler group had its own nearby coal storage area." "The boilers operated at 20 pounds of pressure."