Translations:Steam Boiler (Railcraft)/16/en

Next, construct the boiler on top of the firebox. The Boiler Tank blocks must be of the same type. They may be built in a solid box of 1x1x1, 2x2x2, 2x3x2, 3x2x3, 3x3x3, or 3x4x3. The boiler's footprint must be the same size as the firebox, so you cannot place a 2x2x2 boiler on top of a 1x1 firebox, nor can you place a 1x1x1 boiler on top of a 2x2 firebox.