Boiler

The Boiler is a mid-game industrial building that converts fuel and water into steam for use by Steam Turbines. It sits in a water-and-fuel loop: each Boiler consumes 20 L/s of Water through either side port and can be chained directly with other Boilers, since the ports are bidirectional. This makes it easy to build compact arrays or connect them with Pipe sections as needed.

A single Boiler produces enough steam to support one Steam Turbine at full output. Each Boiler can supply 60 L/s of steam, matching the 60 L/s a Steam Turbine needs to run at its maximum 3.6 MW output. In practice, that means one Boiler per Steam Turbine for full-capacity operation.

For water supply, the building is simple to scale but easy to overtax if the pipe network is not planned carefully:

• Each Boiler adds 5 complexity to the Pipe Network it is attached to.
• One Pipe Intake provides 500 L/s, enough for 25 Boilers at full rate.
• The Pipe Network itself caps at 600 L/s, so two Pipe Intakes are needed to push the total Boiler count up to 30 Boilers before hitting the network limit.

Fuel consumption depends on the chosen fuel and the Boiler must receive 3.6 MJ/s to maintain 360 L/s of steam. Its supported fuels include Biomass, Ignium Ore Rubble, Ignium Ore, Portable Fuel, Ignium Fuel Rods, and Coked Ignium. Portable Fuel and Ignium Fuel Rods are especially convenient for sustained operation because they provide longer burn times and lower item consumption rates, while Coked Ignium is notable for having a slightly better energy return per mined unit of Ignium despite its lower raw energy value, since it is produced at a 2:5 ratio.

When planning a boiler line, the main considerations are water throughput, pipe network capacity, and fuel logistics. The building is most efficient when paired directly with Steam Turbines and fed from a stable water source, since its output is intentionally tuned to match turbine demand exactly.